A point girdle and method of making same

Abstract

The application provides a point-shaped compression garment and a manufacturing method thereof. The compression garment comprises an elastic base cloth layer and a discrete elastic point-shaped array attached thereto. The elastic point-shaped array is distributed in a gradient based on a displacement amplitude heat map of lower limb soft tissue movement, and is flexibly coupled with the base cloth to form a floating structure. The manufacturing method comprises the following steps: collecting kinematic signals; extracting multi-level kinematic characteristics of soft tissues and generating a displacement amplitude heat map through spatial dynamic modeling and multi-level kinematic analysis; mapping the parameters to a two-dimensional version, planning the size and arrangement interval of the point-shaped units, and performing discrete attachment and forming. The application realizes accurate targeted fixation and dynamic compensation of support force for soft tissues with large activity range and intense high-frequency tremors, effectively inhibits muscle invalid tremors while ensuring the freedom of movement, prevents and treats sports injuries, and improves sports performance.

Description

Technical Field

[0001] This invention relates to the field of sportswear technology, and in particular to a dotted compression garment and its manufacturing method. Background Technology

[0002] Compression clothing (or tights) is typically a special type of functional garment containing elastic fibers and yarns. Its main mechanism of action is to apply mechanical pressure to the surface of corresponding body areas to stabilize, compress, and support underlying tissues. During exercise, wearing compression clothing can significantly reduce the acceleration amplitude and oscillation power of the thigh and calf muscles. Existing research has found that compression clothing can improve neuromuscular efficiency and repetitive motion performance by delaying the onset of fatigue and reducing muscle pre-activation levels. Especially in states of fatigue or during high-impact tasks such as downhill running, compression clothing exhibits a certain protective effect.

[0003] However, the actual impact of compression garments on human energy metabolism remains highly controversial. While theoretically reducing soft tissue movement can decrease muscle work, current compression garments mostly employ global mechanical compression, leading to inconsistent experimental results across different samples and pressure conditions. Existing technology has significant limitations: if the pressure distribution of the compression garment is poorly designed, such as excessive overall compression pressure or restriction of joint range of motion, it not only fails to optimize energy transfer but also increases the metabolic cost of movement, severely impacting the natural execution of technical movements.

[0004] To overcome these shortcomings, some emerging designs on the market attempt to achieve a certain degree of mechanical control and proprioceptive adjustment by adjusting the stiffness of local fabrics, simulating the function of kinesiology tape, or guiding specific movement directions. However, most of these improvements remain at the superficial level of the static stress distribution of the fabric, and no clothing solutions have yet emerged that specifically address the three-dimensional dynamic movement patterns and energy transfer optimization of soft tissues. Therefore, how to provide a form of clothing that can precisely limit useless displacement in specific directions based on the high-frequency oscillation patterns of muscles without causing excessive pressure that interferes with natural movement is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] To address the aforementioned technical problems, this application provides a dotted bodysuit and a method for manufacturing the same.

[0006] In a first aspect, the present invention proposes a dotted bodysuit, comprising: an elastic base fabric layer and a discrete array of elastic dots attached to the surface of the elastic base fabric layer; the elastic dotted array is distributed in a gradient based on the displacement amplitude heat map of the soft tissue movement of the human lower limb; and the elastic dotted array is flexibly coupled with the elastic base fabric layer in a discrete state without contact to form a floating structure. The floating structure is configured to, when the soft tissue undergoes movement displacement, utilize the deformation of the elastic base fabric layer between discrete states to generate a synchronous relative displacement with the displacement path of the soft tissue, and delay the deformation of the soft tissue through the tensile deformation of the floating structure, thereby achieving constraint on the dynamic displacement of the soft tissue.

[0007] In the above technical solution, a floating structure composed of discrete array and base fabric coupling is used to achieve dynamic follow-up and adaptive constraint on soft tissue deformation, and to accurately suppress ineffective muscle tremors without sacrificing the human body's freedom of movement.

[0008] Furthermore, the elastic point array is divided into multiple control zones with different constraint characteristics based on the distribution characteristics of the displacement amplitude heatmap. By differentiating the size and arrangement interval of the elastic point units in different control zones, the deformation degree of the elastic base fabric layer between the discrete states in the corresponding regions is adjusted. Continuous biomechanical displacement data is transformed into a regionally controllable model that can be discretized and manufactured, realizing the spatial gradient customization of the effective elastic modulus of the compression garment fabric, ensuring a perfect match between local compression force and local muscle vibration energy.

[0009] Furthermore, the multiple control zones include a first control zone and a second control zone;

[0010] The high displacement amplitude region in the displacement amplitude heatmap that is greater than a preset threshold corresponds to the first control region, and the first control region is equipped with elastic point units with a first preset diameter and a first preset arrangement interval. In the displacement amplitude heatmap, the low displacement amplitude region below the preset threshold corresponds to the second control region, which is equipped with elastic dot-shaped units with a second preset diameter and a second preset arrangement interval. The first preset diameter is larger than the second preset diameter, and the first preset arrangement interval is smaller than the second preset arrangement interval.

[0011] In the above technical solution, by constructing a topological reversal logic of "large size + dense arrangement" to deal with high displacement areas and "small size + sparse arrangement" to deal with low displacement areas, the shock absorption efficiency of key muscle groups is maximized, while the breathability and wearing comfort of non-critical areas are optimized.

[0012] Furthermore, the first preset diameter is 5mm, and its first preset arrangement interval is 2mm; the second preset diameter is 2mm, and its second preset arrangement interval is greater than 5mm. These parameters achieve an optimal physical balance between the material's tensile strength, rebound hysteresis, and the feel of human skin, ensuring the efficient operation of the floating structure.

[0013] Furthermore, the elastic dot-shaped units are made of TPE thermoplastic elastomer material and are bonded to the surface of the elastic base fabric layer using PUR adhesive. The geometric configuration of the elastic dot-shaped units is selected from at least one of circular, semi-circular, or rectangular shapes. By utilizing high-resilience materials and special cross-linking bonding processes, it is ensured that the discrete units will not delaminate under high-frequency, high-impact multi-directional shear forces, significantly improving the structural stability of the dynamic constraint structure and the product's service life.

[0014] Furthermore, the dotted compression garment also includes elastic support strips attached to the elastic base fabric layer. The arrangement of these elastic support strips is perpendicular to the pre-defined main direction of soft tissue wave propagation, in order to counteract the tangential swaying generated by the soft tissue during movement. By introducing a support structure orthogonal to the wave direction, the transmission path of soft tissue mechanical waves is specifically cut off, significantly reducing the tangential shear deformation that is prone to causing muscle strain during exercise.

[0015] Furthermore, the elastic support strips and elastic dot arrays together form an interlaced directional support network on the elastic base fabric layer. The dot array and support strips are coupled in spatial topology to form a three-dimensional seismic-resistant network that can simultaneously resist normal expansion and tangential slippage, giving the bodysuit all-round, all-element muscle restraint capabilities.

[0016] Secondly, the present invention provides a method for manufacturing a dotted bodysuit as described in the first aspect, the method comprising: S1, acquire the kinematic signals of the subject during the movement cycle; wherein, the kinematic signals include the three-dimensional spatial coordinate sequence of the marker points on the soft tissue surface of the lower limb; S2, based on the acquired three-dimensional spatial coordinate sequence, performs multi-level kinematic feature extraction on the spatial deformation of the lower limb soft tissue during movement, and constructs a displacement amplitude heatmap that characterizes the spatial distribution of dynamic deformation of the lower limb soft tissue; S3 maps the displacement amplitude heat map onto the two-dimensional pattern of the bodysuit, divides it into multiple control zones with different constraint characteristics, and plans the size and arrangement interval of the elastic point array by combining the displacement amplitude peak value corresponding to each zone. S4 involves attaching an elastic dot array with planned dimensions and spacing to the surface of an elastic base fabric layer in a discrete, non-contact state to construct a floating structure.

[0017] The above technical solution directly transforms complex biomechanical parameters into parametric clothing structure design, realizing the digital manufacturing of advanced customized sports protective equipment.

[0018] Furthermore, step S2 includes: S21, Perform single-point hierarchical analysis to extract single-point displacement amplitude. The calculation formula is as follows: In the formula, ( 、 、 ) is the first During the movement of the marker points The three-dimensional spatial coordinates at time; 、 、 ) is the first The three-dimensional spatial coordinates of each marker point in its initial static state or reference frame; S22, perform linear trend analysis to obtain the main direction of fluctuation and attenuation law, and calculate the peak displacement time difference respectively. With amplitude spatial change rate The calculation formulas are as follows: and In the formula, and These are the times when the end marker point and the beginning marker point, located in the same spatial observation column or row, reach their displacement peaks, respectively. and These are the peak displacement amplitudes of the end marker point and the beginning marker point, respectively. The straight-line distance between the first and last marker points; S23, Perform local region analysis to assess skin stretching deformation by calculating the dynamic area of ​​the spatial polygon formed by adjacent marker points. The calculation formulas are as follows: In the formula, , , , The four vertices that constitute the local spatial polygon are respectively The three-dimensional spatial position vector at time; This represents the cross product operation of vectors. The modulus representing the orientation quantity; S24. Based on the multi-level kinematic characteristics of the lower limb soft tissue during movement, specific regions where the displacement amplitude of the lower limb soft tissue reaches its peak during running are extracted, and a displacement amplitude heatmap characterizing the spatial distribution of dynamic deformation of soft tissue is constructed.

[0019] The aforementioned technical solution constructs a multi-dimensional kinematic evaluation system that ranges from "point displacement" to "line conduction" and then to "surface strain." This algorithm effectively eliminates the interference of macroscopic human body displacement, purely restoring the high-frequency micro-vibration characteristics of the skin surface, ensuring extremely high confidence in the input data.

[0020] Furthermore, step S3 includes: S31, using the generated displacement amplitude heat map, the displacement distribution of the three-dimensional surface of the human body is projected onto the two-dimensional cutting pattern through a coordinate mapping algorithm; and according to the magnitude of the displacement amplitude, a first control area and a second control area with different regional attributes are defined, with the first control area corresponding to the key parts where soft tissue tremors are severe during movement; S32, within each control zone, based on the peak displacement amplitude corresponding to each control zone, plan the size and arrangement interval of the elastic point array.

[0021] The aforementioned technical solution successfully bridges the geometric gap between three-dimensional motion space and two-dimensional textile manufacturing. Through data-driven automatic dimensionality reduction and regional attribute calibration, it completely eliminates the drawbacks of traditional garment pattern making that heavily relies on manual experience, achieving batch, high-precision parametric design.

[0022] Furthermore, step S2 also includes extracting the main direction of soft tissue motion wave propagation based on multi-level kinematic features; Step S3 also includes planning the layout path of the elastic support strips so that the layout path is perpendicular to the preset main direction of soft tissue wave propagation. Step S4 also includes attaching elastic support strips to the elastic base fabric layer, so that they and the elastic dot array together form an interlaced directional support network on the elastic base fabric layer.

[0023] The above technical solution seamlessly integrates anisotropic mechanical intervention strategies into a fully digital manufacturing process, enabling the final product to accurately anchor and counteract individual differences in muscle tremor waves, thereby enhancing the comprehensiveness and sophistication of the manufacturing method.

[0024] Furthermore, the floating structure utilizes the multi-directional tensile and shear deformation characteristics of the elastic base fabric layer. When the point-shaped bodysuit is forced to deform by soft tissue movement, the spatial spacing between adjacent elastic point units is dynamically adjusted through a flexible connection structure to adapt in real time to the changes in body surface curvature caused by soft tissue movement.

[0025] The aforementioned technical solution endows the solid fabric with an adaptive displacement capability similar to a "mechanical metamaterial." Under extreme motion and stretching conditions, the floating structure can dynamically compensate for the loss of restraint force caused by changes in limb curvature, ensuring stable output of shock absorption performance throughout the entire motion cycle.

[0026] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention upgrades blind physical compression to data-driven precision intervention by accurately extracting multi-level kinematic features of the non-rigid segments of the lower limbs (generating displacement amplitude heatmaps). When applied to compression garments, this solution targets and fixes soft tissue areas with large ranges of motion and high-frequency vibrations based on the spatial displacement amplitude and dynamic deformation distribution of the soft tissues, precisely controlling the local morphology of areas with large movement amplitudes and extreme displacement values. This targeted constraint strategy, without sacrificing overall freedom of movement, significantly reduces ineffective muscle vibrations and overstretching, fundamentally preventing sports injuries such as soft tissue strains and effectively improving athletic performance.

[0027] 2. This invention creatively proposes a "floating structure" composed of a "discrete elastic point array" and an "elastic base fabric layer" flexibly coupled together. This structure utilizes the base fabric fibers as a force transmission medium, enabling the point units to generate relative displacements without contacting each other during forced deformation, adapting in real-time to changes in body surface curvature caused by soft tissue movement. This dynamic compensation mechanism, akin to a mechanical metamaterial, ensures that the bodysuit can firmly lock the support vector onto the dynamic displacement path of the soft tissue under any extreme posture, achieving an advanced shock absorption experience.

[0028] 3. This invention not only utilizes a gradient-based point array to suppress normal displacement, but also further extracts the main direction of soft tissue motion wave propagation and arranges elastic support strips perpendicular to this main direction on the base fabric. The point array and the elastic support strips together construct a three-dimensional, staggered directional support network, specifically cutting off the transmission path of soft tissue mechanical waves. This effectively counteracts the tangential swaying caused by extreme displacement amplitude and high-frequency tensile deformation, completely eliminating multi-dimensional harmful muscle tremors and further delaying the onset of muscle fatigue.

[0029] 4. The manufacturing method of this invention thoroughly quantifies the intangible high-frequency vibrations and spatial deformation characteristics of soft tissue and projects them directly onto a two-dimensional cutting pattern through a coordinate mapping algorithm. Based on the calculation results, the system can automatically plan the curing parameters of the PUR adhesive material and the geometric dimensions and arrangement density of the TPE dot-like units. This method connects the entire chain of "three-dimensional biomechanical calculation and two-dimensional textile manufacturing," providing a solid and reliable technical foundation for the digital and large-scale manufacturing of high-end sports rehabilitation and competitive sports equipment. Attached Figure Description

[0030] The accompanying drawings are included to provide a further understanding of the embodiments and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments and, together with the description, serve to explain the principles of the invention. Many anticipated advantages of the embodiments and other embodiments of the invention will be readily recognized as they become better understood through reference to the following detailed description. Elements in the drawings are not necessarily to scale. The same reference numerals refer to corresponding similar parts.

[0031] Figure 1 This is a flowchart of a method for manufacturing a dotted bodysuit according to an embodiment of the present invention; Figure 2 This is a schematic diagram of a marker pasting method according to an embodiment of the present invention; Figure 3 This is a schematic diagram illustrating the spatial dynamic discretization modeling of non-rigid soft tissues in the mid-thigh and calf segments according to an embodiment of the present invention, and the extraction of its multi-level kinematic features. Figure 4a This is one of the three-dimensional spatial surface topology diagrams showing the evolution of the relative displacement amplitude of the lower limb soft tissue over time according to an embodiment of the present invention, specifically illustrating the spatial distribution of displacement amplitude corresponding to the 10th frame; Figure 4b This is one of the three-dimensional spatial surface topology diagrams showing the evolution of the relative displacement amplitude of the lower limb soft tissue over time according to an embodiment of the present invention, specifically illustrating the spatial distribution of displacement amplitude corresponding to frame 110. Figure 4c This is one of the three-dimensional spatial surface topology diagrams showing the evolution of the relative displacement amplitude of the lower limb soft tissue over time according to an embodiment of the present invention, specifically illustrating the spatial distribution of displacement amplitude corresponding to the 250th frame; Figure 4d This is one of the three-dimensional spatial surface topology diagrams showing the evolution of the relative displacement amplitude of the lower limb soft tissue over time according to an embodiment of the present invention, specifically illustrating the spatial distribution of displacement amplitude corresponding to frame 290. Figure 5 This is a three-dimensional spatial topological map of the amplitude of single-point displacement of lower limb soft tissue and the main direction of wave propagation according to an embodiment of the present invention; Figure 6a This is a thermal image of the displacement amplitude of the soft tissue in the mid-thigh according to an embodiment of the present invention; Figure 6b This is a heat map of the displacement amplitude of the soft tissue in the mid-segment of the lower leg according to an embodiment of the present invention; Figure 7a This is a schematic diagram of the gradient distribution of dotted units in the base fabric of a front lower limb compression garment according to an embodiment of the present invention; Figure 7bThis is a schematic diagram of the gradient distribution of dotted units in the base fabric of a posterior lower limb compression garment according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the microstructure of a dot array unit and its integration on a substrate according to an embodiment of the present invention. Detailed Implementation

[0032] In the following detailed description, reference is made to the accompanying drawings, which form part of the detailed description and are illustrated by way of illustrative specific embodiments in which the invention may be practiced. In this regard, directional terms such as “top,” “bottom,” “left,” “right,” “up,” “down,” etc., are used with reference to the orientation of the described figures. Because components of the embodiments may be positioned in several different orientations, directional terms are used for illustrative purposes and are by no means limiting.

[0033] It should be understood that other embodiments or logical changes may be made without departing from the scope of the invention. Therefore, the following detailed description should not be taken in a limiting sense, and the scope of the invention is defined by the appended claims.

[0034] Figure 1 A flowchart illustrating a method for manufacturing a dotted bodysuit according to an embodiment of this application is shown. Figure 1 As shown, the method includes the following steps: S1, acquire the kinematic signals of the subject during the movement cycle; wherein, the kinematic signals include the three-dimensional spatial coordinate sequence of the marker points on the soft tissue surface of the lower limb.

[0035] In some specific embodiments, reference is made to Figure 2 , Figure 2A schematic diagram of the marker placement method according to an embodiment of this application is shown. As shown, an infrared motion capture system including fourteen infrared cameras acquires kinematic signals at a first sampling frequency of 500Hz. A 10mm first infrared reflective marker is placed on bony landmarks of the lower limbs to establish corresponding rigid body segments and assist in dividing the gait cycle of movement (e.g., by tracking the vertical spatial coordinate trajectory of foot landmarks to identify the ground contact and take-off moments). Simultaneously, 5mm second infrared reflective markers are placed in a preset array layout on the skin surface of the subject's right thigh and right calf regions to obtain a three-dimensional spatial coordinate sequence of the markers on the soft tissue surface of the lower limbs. Specifically, a 10×10 marker array is used in the thigh region, and an 8×8 marker array is used in the calf region, thus forming a marker array covering 15% to 75% of the proximal area of ​​the thigh and calf. The subject completes a movement task under preset speed conditions (e.g., 3m / s, 5m / s, 7m / s), and the speed error is controlled within 5% of the target range using a tachymeter. A preset time interval (e.g., 2 minutes) is set between each two trials to ensure that the subjects fully recover, and multiple effective data collections are completed for each preset speed. The average value of the data is used for subsequent analysis.

[0036] S2, based on the acquired three-dimensional spatial coordinate sequence, performs multi-level kinematic feature extraction on the spatial deformation of the lower limb soft tissue during movement, and constructs a displacement amplitude heatmap that characterizes the spatial distribution of dynamic deformation of the lower limb soft tissue.

[0037] In some specific embodiments, a multi-level feature analysis method based on "points, lines, and surfaces" is used to accurately capture the movement of soft tissue in different areas at different running speeds. Specifically, step S2 includes the following sub-steps: S21, perform single-point hierarchical analysis and extract single-point displacement amplitude. The calculation formula is as follows: In the formula, ( 、 、 ) is the first During the movement of the marker points The three-dimensional spatial coordinates at time; 、 、 ) is the first The three-dimensional spatial coordinates of a marker point in its initial static state or reference frame.

[0038] S22, perform linear trend analysis to obtain the main direction of fluctuation and attenuation law, and calculate the peak displacement time difference respectively. With amplitude spatial change rate The calculation formulas are as follows: and In the formula, and These are the end markers located in the same spatial observation column (or row) (let's call them the first markers in that column). The moment when the displacement peaks are reached by the first marker point (set as the first marker point in the column) and the first marker point (set as the first marker point in the column); and These are the peak displacement amplitudes of the end marker point and the beginning marker point, respectively. It represents the straight-line distance between the first and last marker points.

[0039] S23, Perform local region analysis to assess skin stretching deformation by calculating the dynamic area of ​​the spatial polygon formed by adjacent marker points. The calculation formulas are as follows: In the formula, , , , These are the polygons that constitute a local space (such as those composed of four adjacent polygons of the same type). The four vertices of the spatial quadrilateral formed by the marked points are... The three-dimensional spatial position vector at time; symbol This represents the cross product operation of vectors. The modulus of orientation is represented. This formula calculates the total dynamic area by dividing the space quadrilateral into two triangles.

[0040] S24. Based on the multi-level kinematic characteristics of the lower limb soft tissue during movement, specific regions where the soft tissue displacement amplitude reaches its peak during running and the main longitudinal or transverse propagation direction of soft tissue fluctuations are extracted, thereby constructing a displacement amplitude heatmap that characterizes the spatial distribution of soft tissue dynamic deformation.

[0041] In some specific embodiments, reference is made to Figure 3 , Figure 3 This diagram illustrates a spatial dynamic discretization modeling of the mid-section non-rigid soft tissue of the thigh and calf, and its multi-level kinematic feature extraction, according to an embodiment of this application. As shown in the figure, this application employs a three-dimensional Delaunay tetrahedral subdivision method to perform spatial dynamic discretization modeling of the mid-section non-rigid soft tissue of the thigh and calf, targeting the soft tissue deformation during lower limb movement. Figure 3The upper part corresponds to the mesh model of the soft tissue in the middle of the thigh. Its surface and interior are distributed with several spatial nodes according to anatomical features. These nodes are arranged in a multi-level ring along the longitudinal direction, including nodes A1 to A10, B1 to B10, C1 to C10, D1 to D10, E1 to E10, F1 to F10, G1 to G10, H1 to H10, I1 to I10 and J1 to J10. Adjacent nodes are connected by spatial lines to form a dense tetrahedral mesh array. Figure 3 The middle part corresponds to the mesh model of the soft tissue in the middle of the lower leg. Its subdivision logic is consistent with that of the middle of the thigh. The model nodes include K1 to K8, L1 to L8, M1 to M8, N1 to N8, P1 to P8, Q1 to Q8 and R1 to R8, which are arranged regularly along the circumference and longitudinal direction. Figure 3 The lower part is an enlarged structural diagram of a single microscopic tetrahedral unit extracted from a thigh or calf mesh model. This tetrahedral unit consists of four spatially adjacent vertices. In the dynamic analysis of the entire lower limb movement cycle, the three-dimensional position coordinates of the four spatial vertices constituting each microscopic tetrahedral unit are tracked frame by frame and obtained at different times using a motion capture system. Substituting these coordinates into the Jacobian determinant, the dynamic volume of the tetrahedral unit in each frame can be calculated. This lays the underlying geometric data foundation for accurately quantifying the three-dimensional spatial stretching degree and multi-level kinematic deformation characteristics of local soft tissue.

[0042] Furthermore, based on the constructed spatial node and mesh model, multi-level kinematic feature extraction of points, lines, and surfaces is performed simultaneously to determine the deformation and displacement properties of soft tissue at different motion stages. Specifically: In single-point hierarchical analysis, nodes distributed on the model surface (such as A1 to A10) are used as independent marker points. By comparing the difference in three-dimensional spatial coordinates of each node at a specific motion moment with the initial reference static state, the displacement amplitude of a single point is accurately extracted. In linear trend analysis, the attenuation law of soft tissue fluctuations is obtained by using the node sequence arranged along a specified direction on the model (such as a longitudinal spatial observation column composed of the first marker point A1 to the last marker point A10). The main direction of fluctuation propagation is determined by accurately calculating the time difference between the first and last nodes in the column reaching the displacement peak and the amplitude spatial change rate between the two points. In local region analysis, the skin stretching deformation is evaluated using the spatial polygon mesh surface formed by adjacent nodes on the model surface. The cross product operation is performed using the three-dimensional spatial position vectors of the vertices constituting the polygon mesh to obtain the dynamic total area of ​​the local region.

[0043] In some specific embodiments, referring to FIG4, FIG4 shows a three-dimensional spatial surface topology diagram of the evolution of the relative displacement amplitude of soft tissue over time according to an embodiment of the present application. As shown in the figure, Figures 4a to 4dThis corresponds to the spatial distribution of displacement amplitude at four key moments in the motion cycle: frames 10, 110, 250, and 290. The 3D surface mapping uses a horizontal node sequence A to J and a vertical node sequence 1 to 10 to construct the underlying spatial coordinate grid. The relative displacement amplitude corresponding to each grid node is directly mapped to the vertical physical height in 3D space and a continuous color gradient, where the color gradient from dark blue to bright red represents the increase in displacement amplitude. Combined with time series analysis, Figure 4a It shows the low displacement baseline state in the initial stage of motion, at which time the soft tissue surface is relatively flat and presents a large area of ​​dark blue. Figure 4b It shows the deformation development period. As the motion progresses, the middle of the curved surface begins to bulge significantly, and the color transitions to light blue and cyan, which represents that kinematic mechanical waves are being transmitted in the soft tissue epidermis and are accompanied by deformation accumulation. Figure 4c It shows the absolute peak period of kinematics, at which point the surface shows an extremely steep spatial bulge, the peak color reaches the highest threshold of deep red and the position is highly focused. This figure intuitively and accurately locks the specific physical area with the largest soft tissue displacement amplitude and the most intense high-frequency vibration during running, providing direct data for subsequent extraction of extreme values ​​and planning of the constraint strength of the elastic point array of the compression garment; Figure 4d This shows the deformation dissipation period. As the high-intensity impact ends, the deep red towering peaks quickly recede, the overall height of the curved surface decreases and returns to a gentle blue-green state, completing a complete single-gait cycle dynamic capture closed loop.

[0044] Continue to refer to Figure 5 , Figure 5A three-dimensional spatial topological map of the amplitude of single-point displacement and the main direction of wave propagation in the lower limb soft tissue according to an embodiment of this application is shown. As shown in the figure, the three-dimensional spatial map is constructed based on the X-axis, Y-axis, and Z-axis of a Cartesian coordinate system. The discretely distributed spherical nodes in the space precisely correspond to the sequence of marked points on the soft tissue surface, such as the longitudinal spatial observation columns A1 to A10 and nodes D1 to D10 clearly marked in the figure. The different colors presented by each node directly map the peak value of the single-point displacement amplitude extracted during the movement. Combined with the displacement amplitude color band set on the right side of the figure, the color gradient from dark blue to dark red intuitively represents the significant increase in displacement amplitude from 4.03 cm to 10.68 cm, thereby accurately marking the core physical area where the soft tissue sway is most intense. The short black line segments extending outward from each spherical node represent the main direction of propagation of the local soft tissue wave at that point, i.e., the spatial motion vector, calculated through linear trend analysis. This figure successfully filters out complex and redundant information about the dynamic evolution of time domain by statically superimposing and quantifying the extreme values ​​of single-point displacement amplitude and the main direction of wave propagation in three-dimensional space. It highly condenses the three-dimensional kinematic features and provides the most core quantitative data guidance and structural design basis for subsequent dimensionality reduction to generate two-dimensional displacement amplitude heatmaps, planning the gradient distribution size of elastic point arrays in different control areas, and establishing the vertical staggered arrangement path of elastic support bars.

[0045] S3 maps the displacement amplitude heatmap onto the two-dimensional pattern of the bodysuit, divides it into multiple control zones with different constraint characteristics, and plans the size and arrangement interval of the elastic point array by combining the displacement amplitude peak value corresponding to each zone. At the same time, it maps the extracted main vibration direction of the soft tissue to elastic support strips arranged perpendicular to it.

[0046] In some specific embodiments, the bodysuit undergoes a customized functional structure design based on the peak displacement amplitude and local tensile deformation degree obtained in the prior stages for each region. Specifically, step S3 includes the following sub-steps: S31, Functional Area Mapping and Hierarchical Control: Using the generated displacement amplitude heatmap, the displacement distribution of the three-dimensional surface of the human body is projected onto the two-dimensional cutting pattern through a coordinate mapping algorithm; the first control area and the second control area are defined according to the magnitude of the displacement amplitude, wherein the first control area corresponds to the key parts where soft tissue flutters violently during movement.

[0047] S32, point array configuration based on regional attributes and local tensile deformation degree: In each control zone, the size and arrangement interval of the elastic point array are planned by comprehensively considering the peak displacement amplitude of each control zone and the local tensile deformation degree; that is, for soft tissue regions with high displacement amplitude, elastic point units with larger diameter and higher distribution density are configured, and by changing the effective elastic modulus of the local base fabric, a normal compressive force sufficient to match the dynamic load of the region is provided.

[0048] Specifically, when two control zones have similar peak displacement amplitudes, the degree of local stretching deformation (i.e., the dynamic area of ​​the spatial polygon) is introduced as a weighting variable. For example, the quadriceps femoris region of the thigh and the gastrocnemius region of the calf may exhibit similar high displacement amplitudes during a specific movement phase. However, during planning, not only the displacement amplitude is considered, but also the more intense skin stretching deformation characteristics of the thigh region are taken into account. A first preset diameter (e.g., 5mm) with the strongest constraint and a very small arrangement interval (e.g., 2mm) are matched to the thigh region (e.g., the first control zone). Through this dual comprehensive mapping of macroscopic displacement amplitude and microscopic stretching deformation, it is ensured that the compression garment can provide precisely matched dynamic intervention forces for soft tissue regions with different three-dimensional spatial deformation characteristics.

[0049] S33, Support bar design based on the main direction of wave propagation: Extract the main direction of soft tissue wave propagation, and plan the arrangement path of elastic support bars perpendicular to the main direction of propagation on the base fabric; at the same time, evaluate the magnitude of tangential momentum of each region based on the extreme value of the relative displacement amplitude of each region, so as to match the constraint strength of the elastic support bars, thereby constructing a directional constraint network, accurately counteracting tangential swaying, and enhancing the directional stability of the tissue.

[0050] Continue to refer to Figure 6a and Figure 6b , Figure 6a and Figure 6b Heatmaps of soft tissue displacement amplitude in the mid-thigh and mid-lower leg, respectively, are shown according to embodiments of the present invention. As shown, the displacement amplitude heatmap uses horizontal letter labels (A to J or K to R) to represent the spatial column attribute of the soft tissue surface and vertical numerical labels (1 to 10 or 1 to 8) to represent the spatial row attribute. The value within each grid cell represents the displacement amplitude of the corresponding marked point during movement, with the unit being centimeters (cm). A displacement amplitude color band is provided on the right side of the heatmap, visually representing the distribution pattern of soft tissue displacement intensity in different local areas through a color gradient mapping from dark blue, bright blue, emerald green, golden yellow to deep red. Specifically, the larger the value in the heatmap, the more intense the vibration displacement of the soft tissue in that area during the entire movement cycle, and the deeper the corresponding color. Figure 6a For example, the maximum displacement amplitude is 7.18 cm, located in the region of column G in row 1, which is defined as the core pressurization zone in the first control zone. Figure 6b For example, the maximum displacement amplitude was 3.93 cm, located in the first row, column O region, significantly higher than the surrounding region, indicating the location of the main vibration peak of the lower leg during this movement phase. Through analysis of... Figure 6a and Figure 6bThe accurate extraction of local grid values ​​can automatically identify the high-intensity and low-intensity areas of soft tissue vibration, thereby providing quantitative design indicators for the differentiated configuration of the diameter, arrangement density, and support strength of the elastic point units of the tight-fitting garment in step S4, ensuring that stronger mechanical constraints are applied to the high-intensity displacement area.

[0051] S4 involves attaching an elastic dot array with planned dimensions and spacing to the surface of an elastic base fabric layer in a discrete, non-contact state to construct a floating structure.

[0052] In some specific embodiments, elastic point units are discretized and attached through a fiber mesh structure of an elastic base fabric layer. Adjacent elastic point units do not contact each other, and the fibers of the elastic base fabric layer serve as the force transmission medium to form a flexible connection architecture. The hyperelasticity of the elastic base fabric layer is used to establish flexible connections between the elastic point units, constructing a floating structure that can synchronously undergo relative displacement with the spatial deformation of soft tissue. During movement, the floating structure achieves dynamic compensation through dynamic adjustment of the spacing between its internal elastic point units. That is, it autonomously adjusts the spatial geometric distribution of the elastic point array according to the limb curvature and soft tissue volume changes at different stages of human movement. Through this dynamic coupling mechanism, it ensures that the pressure feedback and support vector applied by the floating structure are always locked on the dynamic displacement path of the soft tissue, realizing real-time intervention and constraint of the motion momentum of the soft tissue. The flexible connection refers to the discrete attachment of elastic point units to the surface of a highly elastic base fabric. These units do not contact each other, but rather utilize the base fabric fibers, which have low bending stiffness and high tensile recovery, as the force transmission medium. When the elastic base fabric layer is subjected to multi-directional tension, the spacing between adjacent elastic point units increases as the fiber mesh expands, thus forming a flexible connection structure that allows for localized free deformation. Dynamic compensation refers to the floating structure utilizing the shear deformation capability of the elastic base fabric layer to adapt in real-time to changes in surface curvature caused by soft tissue movement. When the soft tissue undergoes displacement, the point units in the elastic point array synchronously generate tangential displacement with the soft tissue. By changing the local spatial density of the elastic point array, the normal pressure intensity acting on the skin surface is automatically adjusted, compensating for the loss of support force caused by changes in limb posture.

[0053] In some specific embodiments, reference is made to Figure 7a and Figure 7b , Figure 7a and Figure 7b Schematic diagrams of the gradient distribution of dotted units in the base fabric of the bodysuit for the anterior and posterior lower limbs according to embodiments of the present invention are shown. As shown in the figure, for the anterior lower limb ( Figure 7aThe focus is on covering the quadriceps femoris and tibialis anterior muscles, with larger diameter (e.g., 5mm) and high density (e.g., 2mm intervals) dot-like units placed in the first control zone (i.e., areas of significant soft tissue displacement) to suppress muscle oscillation during knee extension; targeting the posterior lower limb ( Figure 7b The design focuses on covering the hamstrings and gastrocnemius muscles, using elastic support strips perpendicular to their unique wave propagation direction. Combined with displacement amplitude gradients, smaller diameter (e.g., 2mm) and larger spacing (e.g., intervals greater than 5mm) point units are used in the second control zone where displacement is smaller. In the layout design of the thigh and calf, the arrangement logic of the point units maintains spatial continuity. For the relatively small displacement extremes in the calf region, the point units in the calf area are set to smaller particle diameters and greater spacing. This gradient layout from front to back and from far to near achieves precise adaptation to the full-dimensional soft tissue kinematic characteristics of the lower limbs.

[0054] For details, please refer to Figure 8 , Figure 8 a and Figure 8 Figures b show the macroscopic morphology of the elastic dot array under forced tension on a curved surface according to embodiments of the present invention, and its microscopic integrated arrangement on the base fabric. As shown in the figure, the dot-shaped bodysuit consists of a conventional high-elasticity base fabric layer and high-performance elastic granular units discretely adhered to its surface; the elastic granular units are preferably made of thermoplastic elastomer (TPE) material with excellent resilience, chemical stability and abrasion resistance to ensure constant mechanical feedback within a wide deformation range; in the molding process, a polyurethane reactive type, namely PUR (Polyurethane...), is used... The composition ratio of the Reactive (PUR) adhesive material is used to adjust its adhesive strength, toughness, and hardness, achieving a Shore hardness as low as 0. This provides a biomimetic, human-like tactile feel while utilizing its excellent weather resistance and adhesive strength to achieve a durable, flexible bond between the elastic granular units and the highly elastic base fabric layer. The geometric configuration of the elastic granular units can be flexibly set to circular, semi-circular, or rectangular shapes according to functional requirements. Their spatial distribution can be a discrete arrangement of single units or a functional module composed of two or more units. The core design logic and parameter constraints of the elastic granular units are: the elastic point array made of TPE material must completely cover the specific area with the largest displacement amplitude of the soft tissue movement. When the soft tissue experiences violent shaking, the passive constraint generated by the material's high elastic recovery force causes it to stretch and deform synchronously with the highly elastic base fabric layer and the soft tissue. This stretching deformation effectively delays and suppresses the dynamic deformation and spatial displacement of the soft tissue during violent movement, thereby achieving precise control and effective constraint of the soft tissue's movement trajectory.

[0055] The dotted bodysuit manufactured using the above-described method comprises an elastic base fabric layer and a discrete array of elastic dots attached to the surface of the elastic base fabric layer. The elastic dotted array is distributed in a gradient manner based on the displacement amplitude heat map of the soft tissue movement of the human lower limbs. The elastic dotted array is flexibly coupled with the elastic base fabric layer in a discrete state without contact to form a floating structure. The floating structure is configured to utilize the deformation of the elastic base fabric layer in the discrete state to generate a synchronous relative displacement with the displacement path of the soft tissue when the soft tissue undergoes movement displacement. The deformation of the soft tissue is delayed by the tensile deformation of the floating structure, thereby constraining the dynamic displacement of the soft tissue.

[0056] In some specific embodiments, the elastic dot array is divided into multiple control regions with different constraint characteristics based on the distribution characteristics of the displacement amplitude heatmap. By differentiating the size and arrangement interval of the elastic dot units in different control regions, the deformation degree of the elastic base fabric layer between the discrete states in the corresponding regions is adjusted. Preferably, the multiple control regions include a first control region and a second control region; the high displacement amplitude region in the displacement amplitude heatmap that is greater than a preset threshold corresponds to the first control region, and the first control region is configured with elastic dot units of a first preset diameter and a first preset arrangement interval; the low displacement amplitude region in the displacement amplitude heatmap that is less than the preset threshold corresponds to the second control region, and the second control region is configured with elastic dot units of a second preset diameter and a second preset arrangement interval; wherein, the first preset diameter is greater than the second preset diameter, and the first preset arrangement interval is less than the second preset arrangement interval. The first preset diameter is 5 mm, and its first preset arrangement interval is 2 mm; the second preset diameter is 2 mm, and its second preset arrangement interval is greater than 5 mm.

[0057] In some specific embodiments, the elastic dot units are made of TPE thermoplastic elastomer material, and the elastic dot units are fixed to the surface of the elastic base fabric layer by PUR adhesive material; the geometric configuration of the elastic dot units is selected from at least one of circular, semi-circular or rectangular shapes.

[0058] In some specific embodiments, the dotted compression garment further includes: elastic support strips attached to the elastic base fabric layer, the arrangement direction of the elastic support strips being perpendicular to the preset main direction of soft tissue wave propagation, so as to counteract the tangential swaying generated by the soft tissue during movement. Preferably, the elastic support strips and the elastic dotted array together form an interlaced directional support network on the elastic base fabric layer.

[0059] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A dotted bodysuit, characterized in that, include: An elastic base fabric layer and a discrete array of elastic dots attached to the surface of the elastic base fabric layer; The elastic point array is distributed in a gradient based on the displacement amplitude heatmap of the human lower limb soft tissue movement; and the elastic point array is flexibly coupled with the elastic base fabric layer in a discrete state without contact to form a floating structure. The floating structure is configured to generate a synchronous relative displacement with the displacement path of the soft tissue by utilizing the deformation of the elastic base fabric layer in the discrete state when the soft tissue moves. The deformation of the soft tissue is delayed by the tensile deformation of the floating structure, thereby constraining the dynamic displacement of the soft tissue.

2. The dotted bodysuit according to claim 1, characterized in that, The elastic point array is divided into multiple control regions with different constraint characteristics based on the distribution characteristics of the displacement amplitude heatmap; by differentiating the size and arrangement interval of the elastic point units in different control regions, the deformation degree of the elastic base fabric layer between the discrete states in the corresponding regions is adjusted.

3. The dotted bodysuit according to claim 2, characterized in that, The plurality of control zones includes a first control zone and a second control zone; The high displacement amplitude region in the displacement amplitude heatmap that is greater than a preset threshold corresponds to the first control region, and the first control region is configured with elastic dot-shaped units with a first preset diameter and a first preset arrangement interval. The low displacement amplitude region below the preset threshold in the displacement amplitude heatmap corresponds to the second control region, and the second control region is configured with elastic dot-shaped units with a second preset diameter and a second preset arrangement interval. Wherein, the first preset diameter is greater than the second preset diameter, and the first preset arrangement interval is less than the second preset arrangement interval.

4. The dotted bodysuit according to claim 3, characterized in that, The first preset diameter is 5mm, and its first preset arrangement interval is 2mm; the second preset diameter is 2mm, and its second preset arrangement interval is greater than 5mm.

5. The dotted bodysuit according to claim 2, characterized in that, The elastic dotted unit is made of TPE thermoplastic elastomer material, and the elastic dotted unit is fixed to the surface of the elastic base fabric layer by PUR adhesive material; the geometric configuration of the elastic dotted unit is selected from at least one of the following: circle, semi-circle or rectangle.

6. The dotted bodysuit according to claim 1, characterized in that, The dotted compression garment further includes: elastic support strips attached to the elastic base fabric layer, wherein the arrangement direction of the elastic support strips is perpendicular to the preset main direction of the wave propagation of the soft tissue, so as to counteract the tangential swaying generated by the soft tissue during movement.

7. The dotted bodysuit according to claim 6, characterized in that, The elastic support strips and the elastic dot array together form an interlaced directional support network on the elastic base fabric layer.

8. A method for manufacturing a dotted bodysuit as described in any one of claims 1 to 7, characterized in that, The method includes: S1, acquire the kinematic signals of the subject during the exercise cycle; wherein, the kinematic signals include a three-dimensional spatial coordinate sequence of marker points on the soft tissue surface of the lower limb; S2, Based on the collected three-dimensional spatial coordinate sequence, multi-level kinematic features are extracted from the spatial deformation of the lower limb soft tissue during the movement process to construct the displacement amplitude heatmap that characterizes the spatial distribution of the dynamic deformation of the lower limb soft tissue; S3, map the displacement amplitude heat map onto the two-dimensional cutting pattern of the bodysuit, divide it into multiple control areas with different constraint characteristics, and combine the displacement amplitude peak values ​​corresponding to each area to plan the size and arrangement interval of the elastic dot array. S4, the elastic dot array having the planned size and arrangement interval is attached to the surface of the elastic base fabric layer in a discrete state without contacting each other to construct the floating structure.

9. The method for manufacturing the dotted bodysuit according to claim 8, characterized in that, Step S2 includes: S21, Perform single-point hierarchical analysis to extract single-point displacement amplitude. The calculation formula is as follows: In the formula, ( 、 、 ) is the first During the movement of the marker points The three-dimensional spatial coordinates at time; 、 、 ) is the first The three-dimensional spatial coordinates of each marker point in its initial static state or reference frame; S22, perform linear trend analysis to obtain the main direction of fluctuation and attenuation law, and calculate the peak displacement time difference respectively. With amplitude spatial change rate The calculation formulas are as follows: and In the formula, and These are the times when the end marker point and the beginning marker point, located in the same spatial observation column or row, reach their displacement peaks, respectively. and These are the peak displacement amplitudes of the end marker point and the beginning marker point, respectively. The straight-line distance between the first and last marker points; S23, Perform local region analysis to assess skin stretching deformation by calculating the dynamic area of ​​the spatial polygon formed by adjacent marker points. The calculation formulas are as follows: In the formula, , , , The four vertices that constitute the local spatial polygon are respectively The three-dimensional spatial position vector at time; This represents the cross product operation of vectors. The modulus representing the orientation quantity; S24. Based on the multi-level kinematic characteristics of the lower limb soft tissue during the movement process, extract the specific region where the displacement amplitude of the lower limb soft tissue reaches its peak during running, and construct a displacement amplitude heatmap that characterizes the spatial distribution of the dynamic deformation of the soft tissue.

10. The method for manufacturing the dotted bodysuit according to claim 8, characterized in that, Step S3 includes: S31, using the generated displacement amplitude heat map, the displacement distribution of the three-dimensional surface of the human body is projected onto the two-dimensional cutting pattern through a coordinate mapping algorithm; and a first control area and a second control area with different regional attributes are defined according to the magnitude of the displacement amplitude, wherein the first control area corresponds to the key parts where soft tissue tremors are severe during movement. S32, within each of the control zones, the size and arrangement interval of the elastic point array are planned by combining the peak displacement amplitude corresponding to each control zone.

11. The method for manufacturing the dotted bodysuit according to claim 8, characterized in that, in: In step S2, the main direction of soft tissue motion wave propagation is extracted based on the multi-level kinematic features. In step S3, the arrangement path of the elastic support strips is planned so that the arrangement path is perpendicular to the preset main direction of soft tissue wave propagation. In step S4, the elastic support strip is attached to the elastic base fabric layer, so that it and the elastic dot array together form an interlaced directional support network on the elastic base fabric layer.

12. The method for manufacturing the dotted bodysuit according to claim 8, characterized in that, The floating structure utilizes the multi-directional tensile and shear deformation characteristics of the elastic base fabric layer. When the point-shaped bodysuit is forced to deform by soft tissue movement, the spatial spacing between adjacent elastic point units is dynamically adjusted through a flexible connection structure to adapt to the changes in body surface curvature caused by soft tissue movement in real time.

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