EP4216898A1

EP4216898A1 - Training apparatus

Info

Publication number: EP4216898A1
Application number: EP21772726.2A
Authority: EP
Inventors: Jens Friebel
Original assignee: Sissel International GmbH
Current assignee: Sissel International GmbH
Priority date: 2020-09-24
Filing date: 2021-08-30
Publication date: 2023-08-02
Anticipated expiration: 2041-08-30
Also published as: BR112023003648A2; KR20230074154A; TW202211958A; AU2021348927A1; CN116234527A; WO2022063524A1; ZA202303483B; AT524267A1; EP4216898B1; US20230363975A1; MX2023003455A; JP2023542553A; CA3193337A1

Abstract

A training apparatus (1) for stimulating the back muscles associated with a person's spine has two rows of shaped bodies (2), which run one beside the other in a longitudinal direction (L), in particular are not offset from one another, are connected to one another via connecting portions (3) and project away from a base plane (4) which runs through the connecting portions (3). Each of the shaped bodies (2) has at least one bearing region (10), which is in the form of a bearing point or bearing surface and is intended for stimulating the back muscles, wherein the shaped bodies (2) of the one row along with the adjacent, associated shaped bodies (2) of the other row form respective shaped-body pairs (P), and wherein the shaped bodies (2) of the shaped-body pairs (P) form interspaces, in which portions of a spine can be accommodated in the longitudinal direction (L) of the rows. The shaped bodies (2) are formed monolithically together with the connecting portions (3).

Description

TRAINING DEVICE

The invention relates to a training device for stimulating the back muscles associated with a person’s spine, with two rows of shaped bodies running next to one another in a longitudinal direction, in particular not offset from one another, which are connected to one another via connecting sections and protrude from a base plane running through the connecting sections, wherein each of the molded bodies has at least one support area designed as a support point or as a support surface for stimulating the back muscles, on which a part of the body surrounding the spine can be placed, the molded bodies of one row with the associated molded bodies of the other row arranged next to it transversely to the longitudinal direction each form pairs of shaped bodies, and the shaped bodies of the shaped body pairs form spaces in which spinal column sections of a spine in the longitudinal direction of the rows between the associated shaped bodies of the be iden rows are recordable.

Training devices for stimulation or. for training the back muscles are already known from DE 20 2017 000 077 U1 and WO 2019/028533 A1.

Such an exercise device typically consists of two parallel rows of air-filled balls, approximately the size of tennis balls, connected together by a support member such as a tubular fabric sack.

The training device is placed under the back of a lying person during training so that the rows of balls are arranged on either side of the spine. In the ideal case, the training device runs from the back of the head to the Sacrum of the person exercising with it. When performing certain exercises, the balls press on the muscles, ligaments and tendons on both sides of the spine, which stimulates or relaxes them. to be stretched .

When training with such training devices, the structure of the spinal column and the back muscles can be perceived better. In addition, the training device supports mobilization of the intervertebral joints when performing certain exercises. Such a training device also exerts a massage function on the soft tissue of the back muscles.

A disadvantage of the training devices known from the prior art is their compli ed structure, since they consist of individual balls that are connected to each other via a carrier element. For example, the carrier element consists of a tubular bag made of textile, in which the balls are received and sewn. Training devices of this type require a large number of work steps in production. In addition, they do not have great dimensional stability, since the position of the balls connected to one another via the carrier element changes during training or during training. can change over a long period of time, which means that the quality of the training decreases and negative training effects can even occur.

Furthermore, conventional training devices are difficult to clean, since gaps, gaps and inner edges that are difficult to access are formed between the individual elements of the training device, for example in the area of connecting seams.

The invention is based on the object of providing a training device of the type mentioned at the outset which has the disadvantages of the prior art does not have . In particular, a training device is to be provided that is uncomplicated to produce, can be cleaned easily and thoroughly and has high dimensional stability over a long period of time.

This object is achieved according to the invention with a training device that has the features of claim 1 .

Preferred and advantageous embodiments of the invention are the subject matter of the dependent claims.

According to the invention it is provided that the shaped bodies together with the connecting sections are monolithic, d. H . in one piece, are molded . The shaped bodies and the connecting sections are essentially produced in a single work step and do not have to be connected to one another in a time-consuming reworking process.

Since the shaped bodies are formed in one piece with the connecting sections, the shaped bodies are seamlessly connected to the connecting sections. The training device therefore has no gaps, joints or connection points in which dirt can accumulate and can be cleaned more easily and thoroughly than conventional training facilities.

During training and over the entire service life, the training device according to the invention has a high degree of dimensional stability, since the position of the shaped bodies in relation to one another essentially does not change, or only slightly—due to a possible elasticity of the connecting sections. This enables extremely precise and error-free training over the long term. The connecting sections preferably have a web-like shape and can also be referred to as connecting webs within the scope of the invention.

The connecting sections of the training device according to the invention preferably run essentially flat, d. H . flat in relation to the shaped bodies. At the border areas between the connecting sections and the shaped bodies, however, the connecting sections can increase in thickness in some areas due to curves that are favorable in terms of shape.

Within the scope of the invention, the base plane is considered to be a fictitious plane that runs essentially centrally through the connecting sections, it also being possible for the base plane to have a curvature, for example if the connecting sections are bendable. The shaped bodies preferably taper, starting from the base plane towards the support area, so that they are wider or narrower in an area adjoining the connecting sections. are more extensive than in the peripheral, spaced apart from the connecting sections and protruding bearing area. The shaped bodies can taper down to a point that protrudes furthest from the base plane, for example if the shaped bodies have a spherical shape or a pyramid-like shape, in which case there is a contact area. It is also possible within the scope of the invention for a shaped body to have several contact areas, d. H . has a plurality of bearing areas which are essentially equidistant from the base plane.

It is provided within the scope of the invention that the training device has two rows of shaped bodies. However, embodiments with more than two rows of moldings, i. H . Execution forms, in addition to the two rows have more rows of moldings. In such embodiments, the training device according to the invention has in particular an even number of rows, for example four, six, eight or more than eight rows.

In a preferred embodiment, each of the rows has at least two, preferably at least eight, shaped bodies. The training device can have, for example, ten, twelve, fourteen, sixteen or more than sixteen shaped bodies per row. The number of shaped bodies is preferably adapted to the number of cervical and dorsal vertebrae in a person, so that the training device runs from the neck area to the lower back area of a person lying on it.

Within the scope of the invention, the shaped bodies can protrude from the base plane on both sides or on one side. In the case of embodiments in which the shaped bodies protrude from the base plane on both sides, the base plane preferably runs centrally through the shaped bodies, so that these are designed symmetrically to the base plane and protrude symmetrically from it. With these two-sided embodiments, the massage device can be used on both sides and a person using the training device no longer has to pay attention to which side is facing the back due to the support points on both sides. In addition, the moldings are supported at certain points on a base. This gives a practically particularly advantageous flexibility and deformability, through which the shaped bodies can be moved more flexibly towards one another. This also ensures that the training device is adapted in a more appropriate form to the individual configuration of a person's spine and musculature. Leverage between the support points and at the substrate and at the base plane allows this. For this leverage, the training device must be in one piece. A flat support surface or the use of tennis balls does not allow this. In particular, within the scope of the invention, an embodiment is preferred in which the shaped bodies are spherical bodies and are essentially spherical in shape and project away from the base plane on both sides. Training devices shaped in this way can be used in a particularly versatile manner, since they can be used on both sides.

However, within the scope of the invention, the shaped bodies can also be essentially hemispherical in shape and protrude on one side from the base plane. In such an embodiment, the flat connecting sections on the side from which the shaped bodies do not protrude form a substantially flat bearing surface together with a substantially flat underside of the shaped bodies, so that the training device can be placed particularly stably on a flat surface.

A similarly positive effect is achieved if the shaped bodies protrude on both sides of the base plane, but are not rounded on the side that should not face the body in the position of use, but have a straight contact surface. In this case, the moldings can be part-spherical or also approximately pyramid-shaped.

Embodiments are preferred in which the shaped bodies in each row are arranged essentially without offset next to the shaped bodies in the adjacent row. This means that adjacent moldings of two rows, viewed from the side, are arranged directly one behind the other and are not offset from one another. Each shaped body is thus only arranged close to an individual shaped body of the adjacent row, but further away from the other shaped bodies of the adjacent row. The rows can also be defined as essentially symmetrical or arranged in parallel. Such an arrangement of the moldings is particularly favorable because the muscles, ligaments and Tendons on both sides of the spine are usually also arranged symmetrically.

Preference is given to embodiments in which each of the shaped bodies is connected to the adjacent shaped body or is connected to the adjacent shaped bodies in the same row via a connecting section each and/or the shaped bodies of each pair of shaped bodies are connected via a connecting section each and/or each of the shaped bodies of each pair of shaped bodies is connected to the shaped body of the other row of the adjacent pair of shaped bodies or is connected to the moldings of the other row of the adjacent pairs of moldings via a respective connecting section. These options for arranging the connecting sections are not mutually exclusive, but can be realized at the same time, with the connecting sections seamlessly merging into one another or. can be connected to each other.

Within the scope of the invention, two-dimensional or one-dimensional connection points, such as connection surfaces or connection points, are also regarded as connection sections. For example, the shaped bodies can be directly connected to one another, so that the connecting sections are reduced to the connecting surfaces running between the shaped bodies. If the shaped bodies are only connected to one another at points, the connection points or punctiform connection surfaces between the moldings considered.

Within the scope of the invention, further developments are also conceivable in which the connecting sections merge seamlessly into one another in such a way that a single, common connecting element is formed. Such a common connecting element can, for example, in each case in areas between two consecutive molded bodies in a row and the shaped bodies of the adjoining row arranged next to these shaped bodies have a through-opening. As a result, a particularly stable connection of the shaped bodies can be ensured and at the same time material can be saved, so that the training device is lighter and easier to handle. If connecting sections are mentioned in the present description of the invention, the relevant explanations also relate to a single common connecting element. In particular, the individual, common connecting element can have all the features of the connecting sections described in the context of this invention.

In a particularly advantageous embodiment, it is provided that the connecting sections and the molded bodies formed in one piece with them have a closed-pore outer layer. Such an exercise device is easier to clean and more durable.

Within the scope of the invention, it is preferred if the shaped bodies and the connecting sections are formed from a plastic. In particular, it is preferred if a plastic is used that is elastic or elastic at least in areas of lesser thickness. is highly elastically deformable. As a result, a training device can be produced which can be bent to a certain extent in the area of the connecting sections and which nevertheless retains a high level of dimensional stability during training.

The shaped bodies and the connecting sections are preferably made of a thermoplastic polymer, of silicone or of a natural or synthetic rubber. Particularly preferably, the molded body and the connecting sections consist of a PUR (polyurethane) integral foam. In particular, it is provided within the scope of the invention that the shaped bodies and the connecting sections are foamed, injection molded or cast in one piece. The molded body and the connecting sections are particularly preferably produced using the RIM (Reaction Injection Moulding) or RRIM (Reinforced Reaction Injection Moulding) process. These production methods allow the simple production of high-quality training devices according to the invention in large numbers.

Within the scope of the invention, it can be provided that the molded bodies have a cavity or a plurality of cavities in their interior. The presence of cavities saves material and thereby costs and weight. It is also conceivable within the scope of the invention for the cavities of the shaped bodies to be connected via cavities formed in the connecting sections—or, if the connecting sections form a single, common connecting element, via a cavity formed in the connecting element.

Also possible within the scope of the invention are, of course, designs in which the shaped bodies do not have a cavity or have no cavities and are solid over their entire volume, since these can be produced particularly easily.

In the case of embodiments with cavities, these can be filled with a filling, preferably with a gas, for example air, a liquid, a granulate or a solid. This allows easy or produce elastically resilient training devices that are of sufficient size, have an acceptable weight and high dimensional stability, the outer layer of which is as smooth and resistant as possible. The cavities are particularly preferably filled with a foamed plastic, preferably polyurethane. The filler f For example, depending on the desired "degree of hardness" of the training device, it can be foamed to a greater or lesser extent and thus have larger or smaller pores or gas inclusions. Such a plastic used as a filler can be compressed to different degrees depending on the pore size or its material properties, so that Within the scope of the invention, different "hard" or highly resilient training devices can be implemented.

In the context of the invention, it can be provided in particular that the material of the filling has a lower density than the material of the shaped bodies, in particular that the material of the shaped bodies has closed pores and the material of the filling has or has gas inclusions. is more open-pored than the material of the moldings.

Also possible within the scope of the invention are embodiments of the training device in which the shaped bodies have cavities and the cavities of at least two of the shaped bodies are filled with a different material than the other cavities. In such training devices, the shaped bodies can have different properties in terms of their strength, elasticity and spring effect, depending on the region of the spine in which they are used.

It is particularly preferred if the distance between the shaped bodies of each pair of shaped bodies is between 30 mm and 100 mm, in particular between 40 and 80 mm, preferably between 45 and 65 mm. This ensures that there is sufficient space for accommodating the vertebrae of the spinal column of a person exercising with the training device. If the distance between the shaped bodies is smaller, the vertebrae do not have enough space between the spinous processes due to their spinous processes pointing backwards towards the training device moldings . With a greater distance between shaped bodies, the spine is not adequately supported and the muscles acting on the spine cannot be stimulated in the region of their points of action on the spine. In both cases, the training is uncomfortable for the person training with the training device and the training effect is significantly reduced.

The distance between shaped bodies of adjacent shaped bodies in each of the rows is preferably between 30 mm and 100 mm, in particular between 40 and 80 mm, preferably between 45 and 65 mm. As a result, there is enough space between the shaped bodies to accommodate the transverse processes of the vertebrae, so that the training can take place as comfortably and effectively as possible.

Within the scope of the invention, the shaped bodies can each have at least one support area, d. H . the shaped bodies can have at least one support area projecting away from the connecting section on both sides of the connecting section (“top and bottom”) or only on one side of the connecting section (“only above”). Within the scope of the invention, moldings can have one elevation or two or more than two elevations, each of which forms a support area.

In the context of the invention, we understand the expression "at least one part" in such a way that one part or two parts or more than two parts can be present.

Further details, features and advantages of the invention result from the following description with reference to the attached drawings, in which preferred

From leadership forms are shown. It shows : Fig. 1 shows a schematic plan view of a training device according to the invention, wherein shaped bodies and connecting sections arranged according to a first embodiment are shown as separate, partially overlapping bodies,

Fig. 2 shows a schematic plan view of the training device according to FIG. 1, with molded bodies and connecting sections shown connected to one another, but without visible edges,

Fig. 3 to 8 further schematic plan views as in FIGS.

1 and 2 to further three embodiments of the training device according to the invention, each with differently arranged connecting sections, each with molded bodies and connecting sections shown separately and shown connected, FIG. 9 shows a top view of an embodiment of the training device according to the invention, in which the connecting sections merge seamlessly into one another and form a single, common connecting element, FIG. 10 is a side view of the present invention

Training device according to FIG. 9, wherein a shaped body of the training device is partially - cut along an angled cutting plane X-X,

Fig. 11 shows a plan view of a training device according to the invention according to a further embodiment with a common connecting element , and

Fig. 12 shows a side view of the training device according to the invention according to a further possible embodiment.

the fig . 1 to 8 show a very schematic plan view of a training device 1 according to the invention with two rows of shaped bodies 2 arranged next to one another, which are shown in FIG They are spherical in shape. The rows run in a longitudinal direction L .

One shaped body 2 in each row is assigned to an adjacent, non-staggered shaped body 2 in the other row, so that these two shaped bodies 2 form a pair of shaped bodies P.

The moldings 2 are connected to each other via flat connecting sections 3 and monolithic or. molded integrally with them.

In the figs. 1 to 8 only four shaped bodies 2 are shown in each of the rows. However, it goes without saying that this number of molded bodies 2 is only an example. The training device 1 according to the invention preferably has more than four, for example six to fourteen, shaped bodies 2 per row

In the figs. 1, 3, 5 and 7 are the shaped body 2 and the connecting sections 3 each - for better understanding - as separate bodies, overlapping in certain areas, and in Figs. 2 , 4 , 6 and 8 are shown connected together .

In the figs. 1 and 2 show a first embodiment in which the shaped bodies 2 are spaced apart from one another and thus form an intermediate space and each shaped body 2 is connected to the adjacent shaped body 2 (in the case of a shaped body 2 arranged at one end of the training device 1) or the adjacent shaped bodies 2 of the same row, as well as the respective associated shaped body 2 of the same pair of shaped bodies P via a respective connecting section 3 .

In the figs. 3 and 4, another possible embodiment of the training device 1 according to the invention is shown which the shaped bodies 2 are spaced apart and each shaped body 2 with the shaped body 2 of the other row of the adjacent pair of shaped bodies P (in the case of a shaped body 2 arranged at one end of the training device 1) or the adjacent shaped bodies 2 of the other row of adjacent pairs of shaped bodies P, is connected.

In the figs. 5 and 6 show another possible embodiment of the training device 1 according to the invention, in which the shaped bodies 2 directly adjoin one another, so that the connection sections 3 shown schematically are limited to connection regions or connecting surfaces running between the shaped bodies 2 are reduced.

In the figs. 7 and 8 yet another embodiment of the training device 1 according to the invention is shown, in which the shaped bodies 2 also directly adjoin one another. In this embodiment, the connecting sections 3 shown schematically as crossing one another run seamlessly into one another, so that the areas enclosed by two adjacent pairs of shaped bodies P are completely bridged by the connecting sections 3 .

Fig. 9 shows another possible embodiment of the training device 1 according to the invention, in which the shaped bodies 2 are spaced apart from one another and the connecting sections 3 form a single, common connecting element V, since they merge seamlessly into one another.

Fig. 10 shows the training device according to FIG. 9 in a side view, wherein it can be seen that in the illustrated embodiment, the rows of molded bodies 2 run essentially parallel, so that two adjacent molded bodies 2 of different rows, which are associated with one another, Form pair of shaped bodies P, seen from the side are arranged one behind the other.

Centrally through the essentially flat connecting sections 3 - resp. A base plane 4 runs through the single, common connecting element V-, from which the spherical shaped bodies 2 protrude symmetrically.

Between each two adjacent pairs of shaped bodies P, the common connecting element V has through-openings 5 or the connecting sections 3 running into one another in certain areas enclose passage openings 5 . These through-openings 5 are shown in FIG. 1 shown circular, but can also be oval, square, star-shaped or shaped in some other way.

The flat common connecting element V is resp. In the illustrated embodiment, the connection sections 3 are rounded off at the outer edge in some transition areas that form a transition between the common connection element V and the shaped bodies 2, so that in these areas curves 6 directed towards the interior of the common connection element V are formed. The training device 1 thus has no sharp corners in which dirt could accumulate or. the presence of which could have a negative effect on the manufacture of the training device 1--for example by casting. However, embodiments with fewer, more, smaller, larger or no curves 6 at all are also conceivable within the scope of the invention.

In Fig. 10 one of the shaped bodies 2 is shown partially in section, the section along a line shown in FIG. 1 drawn section plane XX runs. The sectional representation shows that cavities 7 are formed in the shaped bodies 2 in the illustrated embodiment of the training device 1 according to the invention. The cavities 7 are filled with a porous material that has different properties than the material from which the shaped body 2 and the connecting section 3 or the common connecting element V are formed and which forms a closed-pore outer layer 8 .

In Fig. 11 shows a top view of another possible embodiment of the training device 1 according to the invention, in which the training device 1 has no through-openings 5 in the common connecting element V. Furthermore, each row consists of ten shaped bodies 2 instead of seven shaped bodies 2 as in FIGS. 9 and 10.

In Fig. 12 shows another possible embodiment of the training device 1 according to the invention in a side view. In this embodiment, the shaped bodies 2 are essentially in the form of hemispheres, so that they are separated from the base plane 4 and the connecting sections 3 and 4 only on one side. - if present - protrude away from the common connecting element V. On the other side of the base level 4, essentially flat undersides of the shaped bodies 2 together with the connecting sections 3 or possibly . the common connecting element V has a flat bearing surface 9 .

It goes without saying that the shaped bodies 2 of the training devices 1 according to FIGS. 1 to 8 , 11 and 12 may have a cavity 7 , with or without filling material accommodated therein . Likewise, the moldings according to FIGS. 1 to 10 hemispherically shaped as shown in FIGS. 11 and 12. The in Fig. 1 to 4 shown connecting sections 3 can be narrower than shown. Likewise, the connecting sections 3 can also be made wider than shown and run seamlessly into one another in certain areas.

Each shaped body 2 has at least one region which is spaced farther from the base plane 4 than the other regions of the shaped body 2 . In the context of the invention, this area is referred to as the support area 10, since it is suitable for serving as a support for the parts of a person's body that are subjected to the training and that surround the spine, thereby exerting pressure on the musculature of the spine of the person exercising with the training device 1 to practice . If the shaped bodies 2 protrude on both sides of the base plane 4, each shaped body 2 can have, for example, two such contact areas 10, so that the training device 1 has a contact side on both sides for the parts of a person's body to be trained.

The support areas 10 can essentially assume the shape of points if the shaped bodies 2 taper away from the base plane 4 more and more, such as in the case of a sphere or a pyramid shape. With such shaped bodies 2, the support area 10 becomes a support point.

A distance A is formed between the contact areas 10 or the contact points or centroids of the contact areas 10 of the two shaped bodies 2 of a pair of shaped bodies P. The distance A is large enough to form an intermediate space in which sections of the spine of a person exercising with the training device 1 can be accommodated in the longitudinal direction L between the shaped bodies 2 . This distance A is preferably between 40 and 80 mm. Within the scope of the invention, the following features listed as examples can be combined with one another as desired: the number of rows of shaped bodies 2, the number of shaped bodies 2 in the rows, the shape of the shaped bodies 2 (e.g. spherical or pyramid-shaped, the further

Design of the shaped bodies 2 (e.g. size and/or material of the shaped bodies 2 and/or the presence of cavities and their filling) as well as different designs of the connecting sections 3 (e.g. as a common connecting element V, and with or without through-holes openings 5 and/or curves 6 ).

reference character list

1 training device

2 moldings

3 connection section

4 base level

5 passage opening

6 rounding

7 cavity

8 outer layer

9 bearing surface

10 support area

L Longitudinal

P pair of molds

V common connector

A Distance between support areas (support points) of a pair of shaped bodies

Claims

Claims : Training device (1) for stimulating the back muscles associated with a spine of a person, with two rows of shaped bodies (2) running next to one another in a longitudinal direction (L), in particular not offset from one another, which are connected to one another via connecting sections (3) and of one project through the connecting sections (3) extending base level (4), each of the shaped bodies (2) having at least one bearing area (10) designed as a bearing point or as a bearing surface for stimulating the back muscles, the shaped bodies (2) of one row with the transverse associated shaped bodies (2) of the other row arranged next to it in the longitudinal direction form pairs of shaped bodies (P) and the shaped bodies (2) of the pairs of shaped bodies (P) form spaces in which

Spinal column sections of a spinal column can be accommodated in the longitudinal direction (L) of the rows, characterized in that the shaped bodies (2) are monolithically shaped together with the connecting sections (3). Training device according to Claim 1, characterized in that the connecting sections (3) have a web-like shape. Training device according to Claim 1 or 2, characterized in that each of the rows has at least two, preferably at least eight, shaped bodies (2). Training device according to one of Claims 1 to 3, characterized in that the shaped bodies (2) project away from the base plane (4) on both sides, in particular symmetrically, or on one side. Training device according to one of Claims 1 to 3, characterized in that the shaped bodies (2) are spherical bodies. Training device according to 5, characterized in that the shaped bodies (2) designed as spherical bodies are essentially spherical or part-spherical and protrude from the base plane (4) on both sides or are hemispherical and protrude from the base plane (4) on one side. Training device according to one of Claims 1 to 6, characterized in that each of the shaped bodies (2) is connected to the adjacent shaped body (2) or the adjacent shaped bodies (2) in the same row via a respective connecting section (3) and/or that the Shaped bodies (2) of each pair of shaped bodies (P) are connected via a respective connecting section (3) and/or that each of the shaped bodies (2) of each pair of shaped bodies (P) is connected to the shaped body (2) of the other row of the adjacent pair of shaped bodies (P) or is connected to the shaped bodies (2) of the other row of the adjacent pairs of shaped bodies (P) via a respective connecting section (3). Training device according to one of Claims 1 to 7, characterized in that the connecting sections (3) run over one another seamlessly in such a way that a single, common connecting element (V) is formed, the common connecting element (V) preferably being in two consecutive pairs of shaped bodies (P) enclosed areas each having a through opening (5). Training device according to any one of claims 1 to 8, characterized in that the monolithically shaped Shaped body (2) together with the connecting sections (3) have a closed-pore outer layer (8). Training device according to one of Claims 1 to 9, characterized in that the shaped bodies (2) and the connecting sections (3) are formed from a plastic, in particular an elastically deformable plastic, preferably a thermoplastic polymer, silicone or rubber. Training device according to one of Claims 1 to 10, characterized in that the shaped bodies (2) and the connecting sections (3) are foamed, injection molded or cast in one piece. Training device according to one of claims 1 to 11, characterized in that the shaped bodies (2) enclose a cavity (7) or several cavities (7) in their interior. Training device according to Claim 12, characterized in that the cavities (7) are filled with a filling, in particular a gas, for example air, a liquid, a granulate or a solid, in particular a foamed plastic, preferably polyurethane. Training device according to claim 13, characterized in that the material of the filling has a lower density than the material of the shaped body (2), in particular that the material of the shaped body (2) is closed-pored and the material of the filling has gas inclusions or is more open-pored than the material of the moldings (2). Training device according to one of Claims 1 to 14, characterized in that the distance (A) between the contact areas (10) or the contact points or centroids of the contact areas (10) of the shaped bodies (2) of each shaped body pair (P) is between 30 mm and 100 mm , in particular between 40 and 80 mm, preferably between 45 and 65 mm. Training device according to one of Claims 1 to 15, characterized in that a longitudinal distance between contact areas (10) or the contact points or centroids of the contact areas (10) of the adjacent shaped 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.