TRAINING DEVICE

Abstract

A training apparatus (1) for stimulating the back muscles associated with a person's spine has two rows of profiled bodies (2), which run side by side in a longitudinal direction (L), in particular are not displaced from each other, are connected to each other via connecting portions (3) and project away from a base plane (4) running through the connecting portions (3).Each of the profiled bodies (2) has at least one carrier region (10), which has the shape of a carrier point or carrier surface and is intended to stimulate the back muscles, wherein the profiled bodies (2) of one row together with the associated, adjacent profiled bodies (2) of the other row form respective parts of profiled bodies (P), and wherein the profiled bodies (2) of the pairs of profiled bodies (P) form interspaces, in which the portions of a column can be accommodated in the longitudinal direction (L) of the rows; the profiled bodies (2) are formed monolithically together with the connecting portions (3).

Description

The invention relates to a training apparatus for stimulating the back muscles associated with a person's spine, comprising two rows of profiled bodies running side by side in a longitudinal direction, not offset from each other, said profiled bodies being connected to each other via connecting portions and projecting away from a base plane running through the connecting portions, wherein each of the profiled bodies has at least one carrier region designed as a carrier point or carrier surface for stimulating the back muscles, where a part of the body surrounding the spine can be relaxed, wherein the profiled bodies of one row together with the adjacent assigned profiled bodies of the other row that are perpendicular to the longitudinal direction form pairs of profiled bodies in each case.and where the profiled bodies of the pairs of profiled bodies form interspaces, in which portions of a column can be accommodated in the longitudinal direction of the rows between the profiled bodies of the two rows that are assigned to each other. The training equipment for stimulating or training the back muscles is already known from DE 20 2017 000 077 U1 and WO 2019 / 028533 Al. Such a training apparatus generally consists of two parallel rows of air-filled balls that are approximately the size of tennis balls and are connected to each other via a carrier element, such as, for example, a hose-type bag made of textile material. During training, the training device is placed under the back of a reclining person, with rows of balls positioned on either side of the spine. Ideally, the device spans from the neck to the sacrum. When certain exercises are performed, the balls compress the muscles, ligaments, and tendons along either side of the spine, thereby stimulating or stretching them. During training with this type of equipment, the structure of the spine and back muscles can be more clearly distinguished. Furthermore, when performing certain exercises, the training device supports the mobilization of the intervertebral joints. This type of training device also provides a massage function to the soft tissue of the back muscles. One disadvantage of the known prior art training equipment is its complicated design, as it consists of individual balls connected to each other via a carrier element. For example, the carrier element is a hose-like textile bag in which the balls are placed and sewn. Such training equipment requires a large number of manufacturing steps. Furthermore, it lacks dimensional stability, since the position of the balls connected by the carrier element can change relative to each other during training or over an extended period, which can diminish the quality of the training and even lead to adverse effects. In addition, conventional training equipment is difficult to clean, as cracks, gaps, and poorly accessible inner edges form between the individual elements of the training apparatus, for example in the area of ​​the assembly seams. The objective of the invention is to provide a training device of the aforementioned type that does not have the drawbacks of the prior art. In particular, a training device will be provided that can be produced in a straightforward manner, can be cleaned easily and thoroughly, and has high dimensional stability over an extended period. This objective is achieved according to the invention with a training apparatus having the characteristics of Claim 1. The preferred and advantageous embodiments of the invention are the subject matter of the sub-claims. According to the invention, the profiled bodies and connecting portions are formed monolithically, i.e., as a single piece. The profiled bodies and connecting portions are produced essentially in a single operation and do not require time-consuming rework. Since the contoured bodies are formed integrally with the connecting portions, they are seamlessly connected. The resulting training device has no cracks, seams, or connection points where dirt can accumulate, and it can be cleaned more easily and thoroughly than conventional training devices. During training and throughout its service life, the training apparatus according to the invention exhibits high dimensional stability, since the positions of the profiled bodies relative to each other essentially remain unchanged or change very little—due to the optional elasticity of the connecting portions. This enables extremely precise and permanently error-free training. The connecting portions preferably have a net-like shape and may also be referred to as connecting nets within the framework of the invention. ccfrrnn / cznz / E / YiAi The connecting portions of the training apparatus according to the invention are preferably essentially flat, i.e., flat relative to the profiled bodies. In boundary areas between the connecting portions and the profiled bodies, the connecting portions may, however, increase in strength in certain locations due to curved edges, which are advantageous in molding technology. Within the framework of the invention, a virtual plane running essentially centrally through the connecting portions is considered the base plane, where the base plane may also have a curvature, for example, when the connecting portions are flexible. The profiled bodies preferably taper from the base plane to the carrier region, so that they are wider or larger in the region joining the connecting portions than in the peripheral carrier region that is separate and projects away from the connecting portions. The profiled bodies may taper to a point that projects at most from the base plane, for example, when the profiled bodies have a spherical or pyramid-like shape, where a carrier region is then present.It is also possible within the framework of the invention that a profiled body has many carrier regions, i.e., many carrier regions that are separated from the base plane by essentially the same width. The invention provides that the training apparatus has two rows of profiled bodies. However, versions with more than two rows of profiled bodies—that is, versions that, in addition to the two rows, also have additional rows of profiled bodies—also fall within the scope of protection of the invention. In such versions, the training apparatus according to the invention has a specific number of rows, for example, four, six, eight, or more than eight rows. In a preferred embodiment, each row has at least two, preferably at least eight, profiled bodies. The training apparatus may have, for example, ten, twelve, fourteen, sixteen, or more than sixteen profiled bodies per row. The number of profiled bodies is preferably adapted to the number of cervical or thoracic vertebrae in a human, so that the training apparatus runs from the neck region to the sacral region of a reclining person. Within the scope of the invention, the profiled bodies can project away from the base plane on both sides or on one side. In embodiments where the profiled bodies project away from the base plane on both sides, the base plane preferably runs centrally through the profiled bodies, so that the latter are symmetrical with the base plane and project away from it symmetrically. These two-sided embodiments ensure that the massage apparatus can be used on either side, and because of the two-sided support points, a person using the training apparatus no longer needs to pay attention to which side is facing their back. Furthermore, the profiled bodies are supported at certain points on a support.As a result, a particularly advantageous flexibility and deformation capacity is provided, ensuring that the contoured bodies can be moved more flexibly relative to one another. This also ensures that the training apparatus can be molded to the individual structure of a person's spine and musculature. A lever action between the support points and on the base plane makes this possible. For this lever action to work, the training apparatus must be a single piece. A flat support surface or one that even uses tennis balls would not allow for this. In particular, within the scope of the invention, a preferred embodiment is one in which the profiled bodies are designed to be spherical and essentially ball-shaped, projecting away from the base plane on both sides. Training equipment formed in this manner can be used in a particularly versatile way, as it can be used from either side. Within the scope of the invention, the profiled bodies can, however, also be designed to be essentially hemispherical and project away from the base plane on one side. In such a configuration, the flat connecting portions form an essentially flat supporting surface together with the essentially flat bottoms of the profiled bodies on any side away from which the profiled bodies do not project, so that the training apparatus can be placed in a particularly stable manner on a flat base. A similarly more positive effect is achieved when the profiled bodies project away from the base plane on both sides, but are not rounded on the side not facing the body in the operating position; rather, they have a straight bearing surface. In this case, the profiled bodies can be partially spherical or approximately pyramidal. The preferred arrangements are those in which the profiled bodies are arranged in any row that is essentially not offset from the profiled bodies in the adjacent row. This means that the adjacent profiled bodies are arranged in two rows that, viewed from the side, are directly behind one another and are not offset from each other. Each profiled body is thus positioned only close to one individual profiled body in the adjacent row but far from the other profiled bodies in the adjacent row. The rows may also be referred to as being arranged essentially symmetrically or parallel. Such an arrangement of profiled bodies is especially advantageous since muscles, ligaments, and tendons are, as a rule, also arranged symmetrically on both sides of the spine. The preferred arrangements are those in which each of the profiled bodies is connected to the adjacent profiled body or to the adjacent profiled bodies in the same row via a connecting portion respectively, and / or the profiled bodies of each pair of profiled bodies are connected via a connecting portion respectively, and / or each of the profiled bodies of each pair of profiled bodies is connected to the profiled body of the other row of the adjacent pair of profiled bodies or to the profiled bodies of the other row of adjacent pairs of profiled bodies via a connecting portion respectively. These ways of arranging the connecting portions are not mutually exclusive but rather can be implemented simultaneously, where the connecting portions can be seamlessly joined together or can be connected to each other. As a connecting portion, two- or one-dimensional connecting points, such as connecting surfaces or points of contact, are also considered within the scope of the invention. For example, profiled bodies can be directly connected to each other, thus reducing the connecting portions to the connecting surfaces that run between the profiled bodies. When the profiled bodies are connected to each other only at points, the connecting points or point-type connecting surfaces between the profiled bodies are considered connecting portions within the scope of the invention. Within the scope of the invention, further development forms are also conceived in which the connecting portions transition seamlessly into one another, thus forming a single, common connecting element. Such a common connecting element may, for example, have a through-opening in each case in the regions between two successive profiled bodies of one row and the profiled bodies of the adjacent fixed row arranged next to these profiled bodies. As a result, a particularly stable connection of the profiled bodies can be ensured, and at the same time, material can be saved, making the training apparatus lighter and easier to handle. When connecting portions are mentioned in this description of the invention, these statements also apply to a single common connecting element.In particular, the individual common connecting element may have all the characteristics of the connecting portions described within the framework of this invention. In a particularly advantageous configuration, the connecting portions and the integrally formed profiled bodies are provided with a closed-pore outer layer. Such a training device is easier to clean and more robust. Within the scope of the invention, it is preferred that the profiled bodies and connecting portions be formed from a plastic. In particular, it is preferred that a plastic be used that is elastically or highly elastically deformable, at least in regions of smaller thickness. As a result, a training apparatus can be produced that can be bent in the region of the connecting portions to a certain degree and yet retains high dimensional stability during training. ccfrrnn / cznz / E / YiAi The profiled bodies and connecting portions preferably consist of a thermoplastic polymer, silicone, or natural or synthetic rubber. The profiled bodies and connecting portions especially preferably consist of an integral PUR (polyurethane) foam. In particular, the invention provides that the profiled bodies and connecting portions may be foamed, injection molded, or cast in one piece. The profiled bodies and connecting portions are preferably produced using the RIM (Reaction Injection Molding) or RRIM (Reinforced Reaction Injection Molding) method. These production methods allow for the simple and high-quality production of training devices according to the invention in large quantities. Within the scope of the invention, it is possible to provide that the profiled bodies have one or more hollow spaces inside. The presence of hollow spaces saves material and thus reduces costs and weight. Within the scope of the invention, it is also conceived that the hollow spaces of the profiled bodies are connected via hollow spaces formed in the connecting portions or—in the case where the connecting portions form a single common connecting element—via a hollow space formed in the connecting element. Within the framework of the invention, the modalities in which the profiled bodies have no space or hollow spaces and are solidly incorporated over the entire volume are, of course, also possible, since the latter can be produced especially easily. In training devices with hollow spaces, these spaces can be filled with a material, preferably a gas (e.g., air), a liquid, a granular material, or a solid. This results in a lightweight or elastically cushioned training device of suitable size, acceptable weight, and high dimensional stability, where the outer layer is as smooth and resilient as possible. The hollow spaces are preferably filled with a foamed plastic, ideally polyurethane. Depending on the desired firmness of the training device, the foam can be adjusted to a greater or lesser degree, resulting in larger or smaller pores or gas inclusions.Such plastic used as filler can be compressed to various levels of resistance depending on the pore size or its material properties, so that within the framework of the invention, training equipment of variable hardness or elasticity can be produced. Within the framework of the invention, it can be provided in particular that the filling material has a lower density than the material of the profiled bodies, in particular that the material of the profiled bodies has closed pores and the filling material has gas inclusions or has more open pores than the material of the profiled bodies. ccfrrnn / cznz / E / YiAi Within the scope of the invention, it is also possible to have training apparatus configurations in which the profiled bodies have hollow spaces, and the hollow spaces of at least two of the profiled bodies are filled with a material different from the other hollow spaces. In such training equipment, the profiled bodies, depending on the region of the spine in which they are positioned during use, have different properties with respect to their strength, elasticity, and spring action. It is especially preferred when the distance between the profiled bodies of each pair is between 30 mm and 100 mm, particularly between 40 and 80 mm, and preferably between 45 and 65 mm. This ensures sufficient space to accommodate the vertebrae of the spine of a person training with the device. With a smaller distance between the profiled bodies, the vertebrae do not have enough space due to the spinal processes of the patient being directed backward toward the training device. With a larger distance between the profiled bodies, the spine is not adequately supported, and the muscles involved with the spine cannot be stimulated at their points of contact.In both cases, the training is uncomfortable for the person training with the training device, and the effect of the training is significantly reduced. The distance between adjacent profiled bodies in each row is preferably between 30 mm and 100 mm, particularly between 40 and 80 mm, and preferably between 45 and 65 mm. This creates adequate spacing between the profiled bodies to accommodate the perpendicular extensions of the vertebrae, allowing training to be carried out as comfortably and effectively as possible. Within the scope of the invention, the profiled bodies may in each case have at least one carrier region; that is, the profiled bodies may have at least one carrier region that projects away from the connecting portion on both sides of the connecting portion (above and below) or only on one side of the connecting portion (only above). Within the scope of the invention, the profiled bodies may have one projection or two or more than two projections, which in each case form a carrier region. Within the framework of the invention, the expression "at least one part" is defined as meaning that one part, two parts, or more than two parts may be present. Further details, features, and advantages of the invention are given in the following description with reference to the accompanying drawings, which depict preferred embodiments. Herein: Fig. 1 shows a diagrammatic top view of a training apparatus according to the invention, wherein the profiled bodies and the connecting portions arranged according to a first modality are represented as separate bodies, which partially overlap, Fig. 2 shows a diagrammatic top view of the training apparatus according to Fig. 1, with profiled bodies and connecting portions depicted as connected to each other but without exposed edges, Figures 3 to 8 show additional diagrammatic top views as in Figures 1 and 2 in three other modalities of the training apparatus according to the invention with connecting portions arranged differently respectively, in each case with profiled bodies and connecting portions depicted separately and connected, Fig. 9 shows a top view of a modality of the training apparatus according to the invention, in which the connecting portions are joined together seamlessly and form a single common connecting element, Fig. 10 shows a side view of the training apparatus according to the invention shown in Fig. 9, wherein a profiled body of the training apparatus is shown as a partial cutaway - along a plane in section at an angle XX, Fig. 11 shows a top view of a training apparatus according to the invention in another embodiment with a common connecting element, and Fig. 12 shows a side view of the training apparatus according to the invention in accordance with another possible embodiment. Figures 1 to 8 show a highly diagrammatic top view of a training apparatus 1 according to the invention with two rows of profiled bodies 2 arranged side by side, said profiled bodies being spherical in the embodiment shown. The rows run in a longitudinal direction L. In each case, a profiled body 2 from one row is assigned an adjacent, non-displaced profiled body 2 from the other row, so that these two profiled bodies 2 form a pair of profiled bodies P. The profiled bodies 2 are connected to each other via flat connecting portions 3 and are formed monolithically or integrally with the latter. In Figures 1 to 8, only four profiled bodies 2 are shown in each row. This means, however, that this number of profiled bodies 2 is only intended as an example. The training apparatus 1 according to the invention preferably has more than four, for example, six to fourteen, profiled bodies 2 per row. In Figs. 1, 3, 5, and 7, the profiled bodies 2 and the connecting portions 3 are represented respectively - to ensure a better understanding - as separate bodies, which overlap in certain regions, and in Figs. 2, 4, 6, and 8, they are represented as connected between ccfrrnn / cznz / E / YiAi yes. In Figs. 1 and 2, a first modality is represented, in which the profiled bodies 2 are separated from each other and thus form an interspace, and each profiled body 2 is connected to the adjacent profiled body 2 (in the case of a profiled body 2 arranged at one end of the training apparatus 1) or the adjacent profiled bodies 2 of the same row, as well as the profiled body assigned respectively 2 of the same pair of profiled bodies P, via a connecting portion 3 respectively. In Figs. 3 and 4, an additional possible embodiment of the training apparatus 1 according to the invention is depicted, wherein the profiled bodies 2 are separated from each other, and each profiled body 2 is connected to the profiled body 2 of the other row of the adjacent pair of profiled bodies P (in the case of a profiled body 2 that is arranged at one end of the training apparatus 1) or to the adjacent profiled bodies 2 of the other row of the adjacent pair of profiled bodies P. In Figs. 5 and 6, another possible embodiment of the training apparatus 1 according to the invention is represented, in which the profiled bodies 2 are directly adjacent, so that the diagrammatically represented connection portions 3 are reduced to connection regions that are almost indistinguishable from the profiled bodies 2 or the connection surfaces that run between the profiled bodies 2. Figures 7 and 8 depict yet another embodiment of the training apparatus 1 according to the invention, in which the profiled bodies 2 are also directly adjacent. In this embodiment, the connecting portions 3, which are diagrammatically represented as intersecting, run seamlessly within one another, so that in each case, the regions enclosed by two adjacent pairs of profiled bodies P are completely gated by the connecting portions 3. Fig. 9 shows another possible embodiment of the training apparatus 1 according to the invention, in which the profiled bodies 2 are separated from each other, and the connecting portions 3 form a single common connecting element V, since they are joined together seamlessly. Fig. 10 shows the training apparatus according to Fig. 9 in a side view, where it can be seen that in the represented modality, the rows of profiled bodies 2 run essentially parallel, so that two adjacent profiled bodies 2, assigned to each other, from different rows, forming a pair of profiled bodies P, are arranged directly behind each other, viewed from the side. A base plane 4, away from which the spherical profiled bodies 2 are projected symmetrically, runs centrally through the essentially flat connecting portions 3 - or through the individual common connecting element V. Between two pairs of adjacent profiled bodies P, the common connecting element V has through openings 5, or connecting portions 3 that run one inside the other in places surround the through openings 5. These through openings 5 ​​are represented as circular in Fig. 1, but they can also be oval, square, star-shaped, or some other shape. In the embodiment shown, in many transition regions, which form a transition between the common connecting element V and the profiled bodies 2, the flat common connecting element V is—or the connecting portions 3 are—rounded at the outer edge, so that in these regions, curved edges 6 are formed facing the interior of the common connecting element V. The training apparatus 1 thus has no sharp corners where dirt can collect or whose presence could have a negative effect on the manufacture of the training apparatus 1—for example, by casting. Within the scope of the invention, however, embodiments with fewer, more, smaller, larger, or even no curved edges 6 are also conceivable. In Fig. 10, one of the profiled bodies 2 is shown in a partially distant cut, where the section runs along a section plane XX drawn in Fig. 1. The cross-sectional representation shows that in the represented embodiment of the training apparatus 1 according to the invention, hollow spaces 7 are formed in the profiled bodies 2. The hollow spaces 7 are filled with a porous material having properties that are different from those of the material from which the profiled bodies 2 and the connecting portion 3 or the common connecting element V are formed, and which forms an outer closed-pore layer 8. In Fig. 11, another possible embodiment of the training apparatus 1 according to the invention is shown in a top view in which the training apparatus 1 has no through opening 5 in the common connecting element V. In addition, each row consists of ten profiled bodies 2 instead of seven profiled bodies 2 as in Figs. 9 and 10. Figure 12 shows yet another possible embodiment of the training apparatus 1 according to the invention in a side view. In this embodiment, the profiled bodies 2 are essentially hemispheres, so that only on one side of the base plane 4, they project away from it and the connecting portions 3 or – if present – ​​of the common connecting element V. On the other side of the base plane 4, the essentially flat bottoms of the profiled bodies 2 together with the connecting portions 3 or optionally the common connecting element V form a flat supporting surface 9. It is understood that the profiled bodies 2 of training equipment 1, according to Figs. 1 to 8, 11, and 12, may also have a hollow space 7, with or without filling material ccfrrnn / cznz / E / YiAi arranged inside. Similarly, the profiled bodies according to Figs. 1 to 10 may be designed to be hemispherical, as in Figs. 11 and 12. The connection portions 3 shown in Figs. 1 to 4 can be formed narrower than depicted. Furthermore, the connection portions 3 can also be formed wider than depicted and can run seamlessly within one another in some places. Each profiled body 2 has at least one region that is located further from the base plane 4 than the other regions of the profiled body 2. Within the framework of the invention, this region is referred to as the carrier region 10, since for this purpose, it is suitable to serve as a support for the body parts of a person undergoing training and surrounds the spine and in this case to exert pressure on the spinal musculature of the person being trained with the training apparatus 1. When the profiled bodies 2 project away on both sides from the base plane 4, each profiled body 2 may have, for example, two such carrier regions 10, so that the training apparatus 1 has on both sides a carrier side for the body parts of a person being trained. The carrier regions 10 can essentially take the form of points when the profiled bodies 2 taper more and more away from the base plane 4, such as, for example, in the case of a spherical or pyramidal shape. In the case of such profiled bodies 2, the carrier region 10 becomes a carrier point. Between the bearing regions 10 or the bearing points or centers of gravity force surface of the bearing regions 10 of the two profiled bodies 2 of a pair of profiled bodies P, a distance A is formed. The distance A is sufficiently large to form an interspace in which the portions of the spine of a person being trained with the training apparatus 1 can be accommodated in the longitudinal direction L between the profiled bodies 2. Preferably, this distance A is between 40 and 80 mm in size. Within the scope of the invention, the following features, listed as examples, can be combined arbitrarily: The number of rows of profiled bodies 2, the number of profiled bodies 2 in the rows, the shape of the profiled bodies 2 (e.g., spherical or pyramidal shape), the additional configuration of the profiled bodies 2 (e.g., size and / or material of the profiled bodies 2 and / or the presence of hollow spaces and their filling), as well as various modes of the connecting portions 3 (e.g., as a common connecting element V, as well as with or without through openings 5 ​​and / or curved edges 6). ccfrrnn / cznz / E / YiAi List of Reference Symbols 1 Training apparatus 2 Profiled body 3 Connecting portion 5 4 Base plane 5 Through opening 6 Curved edge 7 Hollow space 8 Outer layer 10 9 Carrier surface 10 Carrier region L Longitudinal direction P Pair of profiled bodies 15 V Common connecting element A Profiled Distance between carrier regions (carrier points) of a pair of bodies

Claims

1. A training apparatus (1) for stimulating the back muscles associated with a person's spine, comprising two rows of profiled bodies (2) running side by side in a longitudinal direction (L), not offset from each other, said profiled bodies being connected to each other via connecting portions (3) and projecting away from a base plane (4) running through the connecting portions (3), wherein each of the profiled bodies (2) has at least one carrier region (10) designed as a carrier point or carrier surface for stimulating the back muscles, wherein the profiled bodies (2) of one row together with the adjacent assigned profiled bodies (2) of the other row perpendicular to the longitudinal direction form pairs of profiled bodies (P) in each case, and wherein the profiled bodies (2) of the pairs of profiled bodies (P) form interspaces,in which portions of a column can be accommodated in the longitudinal direction (L) of the rows, characterized in that the profiled bodies (2) together with the connecting portions (3) are formed monolithically.

2. The training apparatus according to claim 1, further characterized in that the connecting portions (3) have a net-like shape.

3. The training apparatus according to claim 1 or 2, further characterized in that each of the rows has at least two, preferably at least eight, profiled bodies (2).

4. The training apparatus according to any one of claims 1 to 3, further characterized in that the profiled bodies (2) project away from the base plane (4) on both sides, in particular symmetrically, or on one side.

5. The training apparatus according to any one of claims 1 to 3, further characterized in that the profiled bodies (2) are spherical bodies.

6. The training apparatus according to claim 5, further characterized in that the profiled bodies (2) that are designed as spherical bodies are designed to be essentially spherical or partially spherical and project away from the base plane (4) on both sides or are designed to be hemispherical and project away from the base plane (4) on one side.

7. The training apparatus according to any one of claims 1 to 6, further characterized in that each of the profiled bodies (2) is connected to the adjacent profiled body (2) or adjacent profiled bodies (2) of the same row via a connecting portion (3) respectively and / or in that the profiled bodies (2) of each pair of profiled bodies (P) are connected via a connecting portion (3) respectively and / or in that each of the profiled bodies (2) of each pair of profiled bodies (P) is connected to the profiled body (2) of the other row of the adjacent pair of profiled bodies (P) or the profiled bodies (2) of the other row of the adjacent pairs of profiled bodies (P) via a connecting portion (3) respectively.

8. The training apparatus according to any one of claims 1 to 7, further characterized in that the connecting portions (3) transition seamlessly into one another so as to form an individual common connecting element (V), wherein the common connecting element (V) preferably in regions surrounded by two successive pairs of profiled bodies (P) in each case has a through opening (5).

9. The training apparatus according to any one of claims 1 to 8, further characterized in that the monolithically formed profiled bodies (2) together with the connecting portions (3) have an outer closed-pore layer (8).

10. The training apparatus according to any one of claims 1 to 9, further characterized in that the profiled bodies (2) and the connecting portions (3) are formed from a plastic, in particular an elastically deformable plastic, preferably a thermoplastic polymer, silicone, or rubber.

11. The training apparatus according to any one of claims 1 to 10, further characterized in that the profiled bodies (2) and the connecting portions (3) are foamed, injection molded, or cast in one piece.

12. The training apparatus according to any one of claims 1 to 11, further characterized in that, internally, the profiled bodies (2) enclose a hollow space (7) or many hollow spaces (7).

13. The training apparatus according to claim 12, further characterized in that the hollow spaces (7) are filled with a filling, in particular a gas, for example air, a liquid, a granular material, or a solid, in particular a foamed plastic, preferably polyurethane.

14. The training apparatus according to claim 13, further characterized in that the filling material has a lower density than the material of the profiled bodies (2), in particular in that the material of the profiled bodies (2) has closed pores, and the filling material has gas inclusions or has more open pores than the material of the profiled bodies (2).

15. The training apparatus according to any one of claims 1 to 14, further characterized in that the distance (A) between the carrier regions (10) or the carrier points or surface gravity force centers of the carrier regions (10) of the profiled bodies (2) of each pair of profiled bodies (P) is between 30 mm and 100 mm, in particular between 40 and 80 mm, preferably between 45 and 65 mm.

16. The training apparatus according to any one of claims 1 to 15, further characterized in that a longitudinal distance between carrier regions (10) or the 5 carrier points or surface centers of gravity of the carrier regions (10) of adjacent profiled bodies (2) within the rows is between 30 mm and 100 mm, in particular between 40 and 80 mm, preferably between 45 and 65 mm.

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