Footwear comprising a device for stabilization and walking assistance

Abstract

It is described a footwear (100) comprising a sole (1) associated with an upper (1A), said footwear (100) is characterised in that it also comprises in the rear part of the sole (1) at least one stabilization and walking assistance device (2) which: is made of plastic material, is configured to remain embedded within the thickness of the sole (1), is hollow, has a substantially elongated shape having two dimensions, a first dimension A and a second dimension B in which a second dimension B is greater than a first dimension A and the second dimension B is substantially parallel to the sole (1), has an external surface 2I inclined at an angle corresponding to a third dimension C, has an internal surface 2II inclined at an angle corresponding to a fourth dimension D, has two sides of the elongated surface inclined by an angle corresponding to a fifth dimension E.

Description

[0001] FOOTWEAR COMPRISING A DEVICE FOR STABILIZATION AND

[0002] WALKING ASSISTANCE

[0003] DESCRIPTION

[0004] TECHNICAL FIELD

[0005] The present invention relates to footwear and, preferably but not limited to safety footwear for work.

[0006] STATE OF THE ART

[0007] As is known, safety footwear refers to that type of footwear designed to protect the foot during work. Work footwear has the task of making users' activities safer and preventing possible injuries. For this purpose, work shoes must be designed to be increasingly high-performance.

[0008] Heel stability is an important feature for safety shoes used in both indoor and outdoor environments. These shoes must be designed to provide protection, comfort and safety when used in a variety of conditions and work situations.

[0009] In outdoor environments, particularly hostile terrain conditions can occur. On construction sites, in agriculture or in work situations where one is involved in landscape maintenance, workers must deal with a wide range of weather conditions and types of terrain. Heel stability must therefore be ensured to help maintain ankle support of one foot and safety in these variable conditions.

[0010] Even in indoor environments, the use of footwear with high stability in the heel promotes worker safety.

[0011] In many indoor industrial environments, such as factories or warehouses, workers may be exposed to uneven floors, slippery surfaces, or work conditions that require P7747PC00 PRAXI Intellectual Property SpA repetitive motion. Good heel stability can help prevent accidental falls and injuries.

[0012] In occupations where workers spend long hours standing or walking continuously, heel stability can help reduce fatigue and tiredness in the legs, knees, and back, which can lead to pain during these activities.

[0013] Good posture is essential to the health and well-being of workers. Shoes with good heel stability can help maintain good posture throughout the work shift, especially if the work activity involves standing for long periods of time or repetitive movements. Good heel stability can help prevent musculoskeletal problems, pain, and injury.

[0014] Choosing the right work shoes, with good heel support and a sole that provides stability, is essential to the musculoskeletal health of each individual. In walking, the pronator and supinator muscles play an important role in allowing the foot and ankle to move smoothly. During a normal walking cycle, the correct alternation of pronation and supination is necessary to absorb shock and adapt to changes in the terrain. However, excessive pronation or supination can develop health problems such as injuries or chronic joint or back pain. Pronation refers to an inward movement of the ankle and also a flattening of the arch while supination refers to an outward rotation of the foot during normal movement.

[0015] Being too pronator or supinator can affect your posture, walking, and standing upright correctly.

[0016] A stabilizing element in the heel can help limit supination and keep the foot in a more neutral position, thus reducing the risk of sprains or other problems related to excessive supination. During initial contact with the ground, the heel absorbs much of the shock generated by walking.

[0017] Furthermore, the optimal footwear should be able to return, through a cushioning P7747PC00 PRAXI Intellectual Property SpA effect, the energy expended during walking, providing the user with assistance in walking itself (assisted walking) with a relative anti-fatigue effect on the musculoskeletal system.

[0018] To address excessive pronation or supination, state-of-the-art stabilizers are known that are placed between the sole and the upper, such as those disclosed in US4484397, or stabilizers, such as those disclosed in US4459765, are placed around the rear of the shoe, centered longitudinally along the junction of the shoe upper and the midsole , and extend in a hemispherical arc around the heel itself, enveloping both the sole and the upper.

[0019] A heel stabilization system inside the shoes can help prevent ankle sprains and provide some support for the joint; it can help evenly distribute pressure and absorb shock, thus protecting the ankle and surrounding joint and muscle-tendon structures.

[0020] Additionally, proper heel support helps maintain good posture and lower limb alignment, preventing excessive ankle tilt or foot collapse.

[0021] After this step, the foot lifts again and returns to the initial heel strike step. This cycle of supination and pronation is repeated continuously as we walk, allowing the foot to adapt to different surfaces and provide the support and propulsion necessary for locomotion.

[0022] ABSTRACT OF THE INVENTION

[0023] The Applicant has observed that current footwear featuring stabilizers does not satisfactorily combine the need for a correct cushioning effect with the need to uniformly distribute pressure and absorb shock, thus protecting the ankle and the surrounding joint and muscle-tendon structures with a consequent anti-fatigue effect for the user. The technical problem addressed by the present invention is to provide a P7747PC00 PRAXI Intellectual Property SpA footwear that provides correct stability support that can offer the flexibility necessary for a comfortable fit and combines an anti-fatigue effect thanks to assisted walking. Furthermore, according to a particular aspect, the problem of providing a footwear that has anti-twisting properties of the ankle during normal walking is also addressed. According to a first aspect, the above problem is solved by a footwear as defined in claim 1 and by its preferential embodiments, defined in dependent claims 2-13.

[0024] BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention is described in detail below, by way of example and not limited to, with reference to the attached drawings, in which:

[0026] - Figure 1 shows an exploded view of a footwear according to the present invention comprising a stabilization and walking assistance device;

[0027] - Figure 2A shows a front view of the walking stabilization and assistance device showing the first dimension A, the second dimension B and the fifth dimension E;

[0028] -Figure 2B shows a sectional view of the footwear comprising the stabilization and walking assistance device along a plane parallel to a plane that passes through it from an external malleolus to an internal malleolus and showing the third dimension C of said device;

[0029] - Figure 2C shows a sectional view of the footwear comprising the stabilization and walking assistance device along a plane parallel to a plane that passes through it from an external malleolus to an internal malleolus and showing the fourth dimension D of said device;

[0030] - Figure 3A shows a perspective view of a walking stabilization and assistance device according to a first embodiment;

[0031] - Figure 3B shows a front view of the walking stabilization and assistance device P7747PC00 PRAXI Intellectual Property SpA of FIG. 3A;

[0032] - Figure 3C shows a top view of the walking stabilization and assistance device of FIG. 3A;

[0033] - Figure 3D shows a side view of the walking stabilization and assistance device of FIG. 3A;

[0034] - Figure 4A shows a perspective view of a walking stabilization and assistance device according to a second embodiment;

[0035] - Figure 4B shows a front view of the walking stabilization and assistance device of FIG. 4A;

[0036] - Figure 4G shows a top view of the walking stabilization and assistance device of FIG. 4A;

[0037] - Figure 4D shows a side view of the walking stabilization and assistance device of FIG. 4A;

[0038] - Figure 5A shows a perspective view of a walking stabilization device according to a third embodiment;

[0039] - Figure 5B shows a front view of the walking stabilization and assistance device of FIG. 5A;

[0040] - Figure 5C shows a top view of the walking stabilization and assistance device of FIG. 5A;

[0041] - Figure 5D shows a side view of the walking stabilization and assistance device of FIG. 5A;

[0042] - Figure 6A shows the first step of contact of a foot with the ground;

[0043] - Figure 6B shows the effect of the first step of contact of a foot with the ground on the stabilization and walking assistance device; P7747PC00 PRAXI Intellectual Property SpA

[0044] - Figure 7A shows the second step of average loading of a foot on the ground;

[0045] - Figure 7B shows the effect of the second step of average loading of a foot on the walking stabilization and assistance device;

[0046] - Figure 8A shows the third step of propulsion of the foot on the ground;

[0047] - Figure 8B shows the effect of the third step of foot propulsion on the walking stabilization and assistance device;

[0048] - Figure 9A shows the fourth step of lifting the foot from the ground;

[0049] - Figure 9B shows the effect of the fourth step of lifting the foot from the ground on the stabilization and walking assistance device;

[0050] - Figure 10 depicts the effect of the forefoot sole in the second medium load step;

[0051] - Figure 11 depicts the effect of the forefoot sole in the third step of foot propulsion.

[0052] DETAILED DESCRIPTION

[0053] While the invention is susceptible to various modifications and alternative constructions, some particular embodiments are shown in the drawings and will be described in detail below. In this description, similar or identical elements or components will be indicated in the figures with the same identifying symbol.

[0054] Before any embodiment of footwear 100 is described in detail, it should be understood that the details of construction and the arrangement of components set forth in the following description or illustrated in the following drawings are exemplary and are not intended and should not be construed to limit the scope of the claims. The walking stabilization and assistance device 2 described herein may have other embodiments and be practiced or made in various ways consistent with this description. In the remainder of the description, the walking stabilization and assistance device 2 will be P7747PC00 PRAXI Intellectual Property SpA referred to for simplicity as the stabilization device 2. Various aspects or features of the stabilization device 2 disclosed herein may be used alone or in combination with other aspects or features disclosed.

[0055] Figure 1 shows a footwear 100 which is preferably a work footwear and, in particular, a safety footwear or a footwear for protection from accidents. For example, the footwear 100 is a footwear suitable for use in work environments where there are risks to the safety of the feet such as may occur, for example, in factories or warehouses or even on building sites, in agriculture or in activities involving landscape maintenance. According to an exemplary embodiment of the invention, the safety footwear 100 comprises a sole 1 associated with an upper 1A, said sole 1 comprises a walking stabilization device 2.

[0056] The frontal walking stabilization device 2 has an elongated shape obtained by means of a surface that, if subjected to compression, flattens towards the ground. The flattening is also aided by the fact that the stabilization device 2, in addition to having an elongated frontal shape, is also hollow inside. The stabilization device 2, in section, is therefore a hollow truncated cone in which the base surface has an elongated shape and is open towards the outside of the sole 1 while the other surface is closed and faces towards the inside of the sole 1. The thickness is practically the same for the entire device 2 and can vary in a range from 1 to 3 mm.

[0057] FIG. 2 shows that the elongated surface of the stabilization device 2 is described by five main dimensions: a first dimension A, a second dimension B greater than dimension A, a third dimension C representing the inclination angle of an external surface 21of the stabilization device 2 with respect to the axis perpendicular to said external surface 21with origin in the center of the knee, a fourth dimension D P7747PC00 PRAXI Intellectual Property SpA representing the inclination angle included between the internal surfaces 2nof the stabilization device 2 and a fifth dimension E representing an inclination angle included between two sides of the elongated surface of the stabilization device 2.

[0058] It should be noted that the first dimension A, the second dimension B and the fifth dimension E are measurements of the stabilization device 2 taken in relation to a plane that passes through the foot of a user from the heel to the toe while the third dimension C and the fourth dimension D are measurements of the stabilization device 2 taken in relation to a plane parallel to a plane that passes through the foot of a user from the external malleolus to the internal malleolus.

[0059] The stabilization device 2 can be sized in relation to the footwear sizes which could range from 34 to 50, therefore to maintain their efficiency in the elastic response they must maintain a certain proportion in size.

[0060] The ratio to provide the right elasticity between the second dimension B and the first dimension A of FIG. 2 A is included in a range between 4 and 5 while the fifth dimension E is included in a range between 5° and 15° and preferably in a range between 9° and 11°.

[0061] The third dimension C of FIG. 2B instead regulates the inclination of the stabilization device 2 which determines the stability of the ankle. The inclination of the external surface 21of the stabilization device 2 directly influences the direction of the forces that bring the knee back to the neutral axis.

[0062] Anthropometric studies have estimated that the average distance between the knee and the heel of an adult approximately 170-180 cm tall is between 45-55 cm. To determine the third dimension C, and therefore, the inclination angle of the external surface 21of the device 2, the axis perpendicular to the aforementioned external surface P7747PC00 PRAXI Intellectual Property SpA

[0063] 21with origin in the center of the knee was considered . Therefore, the third dimension C is included in a range between 5° and 9° and preferably between 6.5° and 7.5°.

[0064] The inner surface 2nof the stabilization device 2 influences its elastic effect . The fourth dimension D of FIG. 2C is included in a range from 2° to 18° and preferably in a range from 3.5° to 12°.

[0065] The third dimension C and the fourth dimension D taken in relation to a plane parallel to a plane passing through a user's foot from the external malleolus to the internal malleolus in the vicinity of the second diagonal D2 of FIG. 3B.

[0066] The stabilization device 2 is designed so that the second dimension B is substantially parallel to the sole 1.

[0067] According to a first embodiment of FIG. 3 (see figs. 3A, 3B, 3C and 3D) the stabilization device 2 preferably has a rhomboid shape with two 2a , 2b of the four sides having a larger dimension than the remaining two 2c, 2d and the union of the opposite vertices of the four sides forms two diagonals, a first diagonal DI and a second diagonal D2 of which the first diagonal DI has larger dimensions than the second diagonal D2. The first diagonal DI (as well as the second dimension B of FIG. 2A) is substantially parallel to the sole 1, the first vertex VI of the union of the two long sides 2a , 2b is facing the front of the shoe, i.e. towards the tip of the foot, while the second vertex V2 of the union of the two short sides 2c, 2d is facing the rear, i.e. towards the heel of the foot.

[0068] According to a preferred embodiment, the first diagonal DI is included in a range of 11-14 mm and the second diagonal D2 is included in a range of 47-59 mm. The size of the second diagonal D2 increases proportionally as the length of a foot increases, while the size of the first diagonal DI, with respect to the second diagonal D2, as the length of the foot increases, varies downwards while still varying in the range indicated P7747PC00 PRAXI Intellectual Property SpA above.

[0069] According to a preferred embodiment, as visible in figures 1 to 9, the stabilization device 2 has a rhomboid shape from the front and has long sides 2a, 2b and short sides 2c, 2d which are sides characterized in that they are straight surfaces without curvatures and the junction vertices of said sides are characterized in that they have rounded corners, avoiding square corners, to facilitate the crushing towards the ground of the stabilization device 2 if subjected to compression.

[0070] Furthermore, according to a preferred embodiment, the stabilization device 2, in section, as visible in FIG. 2B and FIG. 2C, has a truncated cone shape whose sides, of the truncated cone, are straight surfaces without curvatures. The stabilization device 2 is therefore a device that, both frontally and in section, is free of curvatures and therefore it is possible to define on it, with precision, the third dimension C which, as reported above, is that dimension capable of directly influencing the direction of the forces that bring the knee back to the neutral axis, influencing the stability of the ankle. As described above, vertex VI of FIG. 3B faces the tip of the foot while vertex V2 of FIG. 3B faces the heel of the foot. This arrangement of the stabilization device 2 inside the footwear 100 promotes stability of the user's ankle since the stabilization device 2 is able to perform, through its cushioning properties, a counter-thrust that brings the knee back to the neutral axis.

[0071] According to a preferred embodiment, the stabilization device 2 is made of plastic material such as preferably but not limited to TPU (thermoplastic polyurethane) having a hardness in the range 65 - 95 shore A. According to alternative embodiments, the stabilization device 2 is made of: ABS (acrylonitrile butadiene styrene), TPE (thermoplastic elastomer), PE (polyethylene), PP (polypropylene) or any other plastic P7747PC00 PRAXI Intellectual Property SpA material. The stabilization device 2 is configured to be an integral part of the sole 1. In other words, the stabilization device 2 is previously molded individually and then loaded into the mold for the production of the sole 1. The molding of the sole 1 incorporates the stabilization device 2 inside it making the whole a single indivisible body. According to a preferred but not limited embodiment, the sole 1 is preferably made of polyurethane.

[0072] The stabilization device 2 is configured to remain embedded in the thickness of the sole 1 in the part relating to the heel, surrounded by a visco-elastic material such as, preferably, a polyurethane.

[0073] According to a preferred embodiment, in each footwear 100 the stabilization device 2 is one and is able to be positioned towards the outside, i.e. in the direction of the external malleolus. In an alternative embodiment, in each footwear 100 the stabilization devices 2 are two and are able to be positioned not only in the direction of the external malleolus but also towards the inside, i.e. in the direction of the internal malleolus.

[0074] Figures 4A, 4B, 4C and 4D show an alternative embodiment of the stabilization device 2 of similar shape to the stabilization device of Figures 3A, 3B, 3C and 3D but with the addition of a central support SC configured to provide greater elasticity to the stabilization device 2.

[0075] According to a preferred embodiment, the central support SC has a "V" shape in which the sides of the V preferably start from the first side 2a and from the second side 2b of the stabilization device 2 and in which the vertex of the V is preferably oriented in the direction of the second vertex V2 of the stabilization device 2. Preferably the vertex of the V of the central support SC is located at a height F which is equal to 28- P7747PC00 PRAXI Intellectual Property SpA

[0076] 33% of the second diagonal D2, said height F being measured from the second vertex V2 of the stabilization device 2. Said height F is preferably included in the range equal to 29-31% of the second diagonal D2.

[0077] In the first and second embodiments, the stabilization device 2 penetrates towards the center of the heel without crossing it from one side to the other.

[0078] Figures 5A, 5B, 5C and 5D depict a third embodiment of the stabilization device 2 which is unique and passes from the outside towards the inside of the shoe. In other words, in the third embodiment the stabilization device 2 is no longer a truncated cone but a hollow parallelepiped from the outside towards the inside of the footwear 100 whose front surface is elongated in shape.

[0079] The stabilization device 2 of the preceding embodiments is configured to be a stability support for its anti-torsion effect.

[0080] This stabilization device 2 helps to evenly distribute pressure and absorb shock, thus protecting the ankle and surrounding structures. In addition, the stabilization device 2 helps maintain good posture and lower limb alignment, preventing excessive ankle tilt or foot collapse.

[0081] When the human body is in a neutral position, the forces acting on the leg are along the vertical axis connecting the foot to the knee.

[0082] This stabilization device 2 is configured to transmit forces and displacements, moment by moment, along the axis of the lower joint, so as to neutralize stresses that could place the joints under stress.

[0083] A normal walk can be divided into four steps:

[0084] 1. Initial contact of the foot with the ground

[0085] 2. Average foot load on the ground P7747PC00 PRAXI Intellectual Property SpA

[0086] 3. Heel propulsion

[0087] 4. Foot lift.

[0088] Figures 6A and 6B show the first step, that is, the step in which the foot touches the ground with the heel. In this step, the foot is in a supinated position, that is, the lower limb is in a slightly externally rotated position and the supinator muscles are active to maintain this position and stabilize the ankle.

[0089] According to the embodiment in which the footwear 100 comprises two walking stabilization devices 2, in the first step both devices are activated but in an asymmetric manner. The feature of being able to act separately is fundamental for proper functioning. The greatest activation will be on the external stabilization device 2 since, after the first contact of the heel, the foot is in supination. Both stabilization devices 2 compress, absorbing energy. If the supination is excessive, the stabilization device 2 has the function of developing a counter-thrust towards the ankle, reducing the risk of distortions.

[0090] Figures 7A and 7B show the second step of walking in which the body weight gradually shifts towards the forefoot while the pressure on the heel decreases. The foot is still in the supination step and the pronator muscles begin to contract to prepare for the push-off phase. Both stabilization devices 2 gradually deactivate, returning a good part of the absorbed energy. In this way, they facilitate the transfer of body weight from the heel to the sole of the foot, providing effective assistance to walking that facilitates movement and reduces fatigue . The external stabilization device 2 continues to have a residual amount of absorbed energy as the foot is still in the supination phase. In the third step of figures 8A and 8B, as the heel lifts off the ground, the pronator muscles are active to ensure a smooth transition between the medium loading step and P7747PC00 PRAXI Intellectual Property SpA the forward step. The support moves increasingly towards the tip. The stabilization devices 2 are completely discharged. The greater residual energy of the external stabilization device 2 helps to bring the foot back to the neutral axis, thus continuing the assisted walking effect.

[0091] During the last step of the walking in figures 9A and 9B, the foot is completely pronated, with the body weight shifted onto the big toe. This allows the pronator muscles to provide an effective push to advance the body upwards. Both stabilization devices 2 are deactivated and ready for the new walking cycle. In the propulsive steps, device 2 acts, thanks to the inclination given by the dimension E, to the push that facilitates and promotes walking. This is always with a view to the anti-fatigue function.

[0092] In the preferred but non-limiting embodiment in which the footwear 100 provides two stabilization devices 2, the stabilization and walking assistance devices 2 form a curvature that is variable in the various steps of walking (as visible in FIG. 6-9). The variability, in the various steps of walking, of the curvature provides stability to the user's ankle since the stabilization device 2 is able to perform, through its cushioning properties, a counter-thrust that brings the knee back to the neutral axis.

[0093] The sole 1 of the footwear 100 is configured so that the front and rear parts perform different functions but both work to ensure "assisted walking".

[0094] The rear part is intended to provide stability, cushioning, dissipation and energy return thanks to the fact that the sole 1 preferably made of polyurethane comprises at least one walking stabilization device 2 and at least one first shock-absorbing hole 3 preferably pyramid-shaped and preferably arranged, with respect to the thickness of the sole 1, above the at least one stabilization device 2. According to an alternative P7747PC00 PRAXI Intellectual Property SpA embodiment, the first holes 3 can be arranged below the at least one stabilization device 2.

[0095] Preferably the first 3 holes are more than one, pyramidal in shape and decreasing in size from the centre of the sole 1 towards the heel.

[0096] The front part of the sole 1 performs the cushioning function to increase the comfort effect provided by the stabilization device 2. The front part of the footwear 100 comprises shock-absorbing cushions 4 which contribute to reducing the back pressure on the sole of the foot during the compression steps of FIG. 10 (step two of average load of a foot on the ground) and release of FIG. 11 (step three of heel propulsion) of the walking cycle. Preferably the shock-absorbing cushions 4 have a front surface having an elongated shape which facilitates their crushing towards the sole 1 during the compression step of FIG. 10. Furthermore, the front part of the sole 1 between one shock-absorbing cushion 4 and the next comprises a second shock-absorbing hole 5 configured to facilitate the deformation towards the sole 1 of the shock-absorbing cushion 4. The aforementioned cushions 4 are arranged next to each other in a single row, but according to a further embodiment, they can be arranged in two rows of overlapping cushions 4.

[0097] LEGEND OF THE COMPONENTS OF THE FIGURES

[0098] - footwear 100

[0099] - sole 1

[0100] - upper 1A

[0101] - stabilization and walking assistance device 2

[0102] - external surface 21 P7747PC00 PRAXI Intellectual Property SpA

[0103] - internal surface 2n

[0104] - first shock absorbing hole 3

[0105] - shock absorbers 4

[0106] - second shock absorbing hole 5

[0107] - first dimension A

[0108] - second dimension B

[0109] - third dimension C

[0110] - fourth dimension D

[0111] - fifth dimension E

[0112] - first side 2a

[0113] - second side 2b

[0114] - third side 2c

[0115] - fourth side 2d

[0116] - first diagonal DI

[0117] - second diagonal D2

[0118] - first vertex VI

[0119] - second vertex V2

[0120] - central support SC

[0121] - height F

Claims

P7747PC00 PRAXI Intellectual Property SpACLAIMS1. Footwear (100) comprising: a sole (1) associated with an upper (1A) said footwear (100) characterised in that it also comprises in the rear part of the sole (1) at least one stabilization and walking assistance device (2) which:- it is made of plastic material;- it is configured to remain embedded within the thickness of the sole (1);- it is hollow;- it has a substantially elongated shape having two dimensions, a first dimension A and a second dimension B in which the second dimension B is greater than the first dimension A and the second dimension B is substantially parallel to the sole (1);- has an external surface 21inclined at an angle corresponding to a third dimension C;- has an internal surface 2ninclined at an angle corresponding to a fourth dimension D;- has two sides of the elongated surface inclined by an angle corresponding to a fifth dimension E.

2. Footwear (100) according to claim 1 wherein the plastic material of the stabilization device (2) is one of the following: TPU having a hardness in the range of 65-95 Shore A, ABS, TPE, PE and PP.

3. Footwear (100) according to claim 1 wherein the ratio between the second dimension B and the first dimension A is within a range of 4-5.

4. Footwear (100) according to claim 1 wherein the third dimension C is comprised inP7747PC00 PRAXI Intellectual Property SpA a range between 5° and 9° and preferably between 6.5° and 7.5°.

5. Footwear (100) according to claim 1 wherein the fourth dimension D is comprised in a range between 2° to 18° and preferably between 3.5° to 12°.

6. Footwear (100) according to claim 1 wherein the fifth dimension E is comprised in a range between 5° and 15° and preferably between 9° and 11°.

7. Footwear (100) according to claim 1 wherein the stabilization device (2) is molded individually and then loaded into the mold for the production of the sole (1) which, once molded, incorporates the stabilization device (2) inside it, making the whole a single indivisible body.

8. Footwear (100) according to the previous claims wherein the at least one stabilization device (2) is embedded in the sole (1) preferably in the direction of an external malleolus of a user of the footwear itself.

9. Footwear (100) according to the previous claims wherein the stabilization devices (2) are two embedded in the sole (1) in the direction of an external malleolus and an internal malleolus of a user of the footwear itself.

10. Footwear (100) according to the previous claims wherein the stabilization device (2) is unique and passes from the outside towards the inside of the sole (1).

11. Footwear (100) according to the preceding claims wherein the rear part of the sole (1) further comprises at least a first shock-absorbing hole (3).

12. Footwear (100) according to the previous claims wherein the front part of the sole (1) further comprises shock-absorbing cushions (4).

13. Footwear (100) according to the previous claims wherein the sole (1) between a shock-absorbing cushion (4) and the next one comprises a second shock-absorbing hole (5).