FI126391B

FI126391B - trainer

Info

Publication number: FI126391B
Application number: FI20156001A
Authority: FI
Inventors: Kari Laitinen; Harri Petäjistö
Original assignee: Backup Sport Finland Oy
Priority date: 2015-12-23
Filing date: 2015-12-23
Publication date: 2016-11-15
Also published as: FI20156001A; WO2017109291A1

Description

TRAINING DEVICE Technical field

The disclosed solution relates to a training device.

Background

Plyometrics are jump training exercises in which a muscle contracts from extended state in a rapid or explosive manner. There exist training devices for plyometric training. For example, plyo box is known among skaters and hockey players aiming to improve the stride strength and speed.

However, when a user jumps between the fixed platforms of conventional plyo boxes, jumping may cause pronation of the foot and misalignment of the knee when landing on the fixed platform. Training on fixed platforms is not so suitable for certain kinds of sports, for example ice hockey or skating.

There is, therefore, a need for a solution that is better suitable for sports involving skating.

Summary

Now there has been provided a solution, namely a training device, by which the above problems are alleviated. The training device comprises features, which are characterized by what is stated in the independent claim. Various embodiments of the invention are disclosed in the dependent claims.

According to an aspect of the solution there is provided a training device, comprising a body; a first platform hingedly coupled on the body, the first platform having a first upper surface; a second platform hingedly coupled on the body, the second platform having a second upper surface, wherein the first platform and the second platform are enabled to be arranged to inclined positions, wherein the first platform and the second platform slant towards each other; the first platform is arranged to incline around a first axis of rotation towards a horizontal position when in a horizontal use position of the training device and a force is directed on the first upper surface, and the second platform is arranged to incline around a second axis of rotation towards a horizontal position when in a horizontal use position of the training device and a force is directed on the second upper surface; and wherein the first axis of rotation is below the first platform and the second axis of rotation is below the second platform; and wherein the first platform and the second platform are enabled to reach the substantially horizontal positions.

According to an embodiment, the first platform is coupled to the body by a first hinge system and the second platform is coupled to the body by a second hinge system, wherein the first hinge system defines the first axis of rotation for the first platform; and the second hinge system defines the second axis of rotation for the second platform.

According to an embodiment, the first axis of rotation is located below a central portion of the first platform; and wherein the second axis of rotation is located below a central portion of the second platform.

According to an embodiment, the first platform has a first interior edge and a first exterior edge; the second platform has a second interior edge and a second exterior edge; and wherein the first axis of rotation is closer to the first exterior edge than the first interior edge; and wherein the second axis of rotation is closer to the second exterior edge than the second interior edge.

According to an embodiment, the body is extendable to adjust a horizontal distance between the first platform and the second platform.

According to an embodiment, the horizontal distance between the first interior edge and the second interior edge is adjustable continuously or in steps.

According to an embodiment, the training device further has at least one compressible member positioned below the first platform and/or the second platform.

According to an embodiment, a material of the at least one compressible member is at least partly cellular plastic.

According to an embodiment, the at least one compressible members is replaceable.

According to an embodiment the first platform has a first interior edge and a first exterior edge; the second platform has a second interior edge and a second exterior edge; further having a plurality of compressible members positioned below the first platform and/or the second platform, wherein the compressible member positioned closer to the first interior edge than the first exterior edge and/or the compressible member positioned closer to the second interior edge than the first exterior edge has a first stiffness; the compressible member positioned closer to the first exterior edge than the first interior edge and/or the compressible member positioned closer to the second exterior edge than the second interior edge has a second stiffness; and wherein the first stiffness is higher than the second stiffness.

According to an embodiment the first upper surface and the second upper surface are at a height of 3 to 10 cm, substantially 7 cm, when the first platform and the second platform are in the substantially horizontal position.

According to an embodiment the training device further comprises an integrated angle ruler indicating an inclination angle of the first platform or the second platform.

According to an embodiment the training device further comprises fastening elements for attaching one or more elastic cords.

Description of the Drawings

In the following, various embodiments of the solution will be described in more detail with reference to the appended drawings, in which

Fig. 1 shows a side view of a training device according to an embodiment;

Fig. 2 shows a perspective view of the training device according to the embodiment of Fig. 1;

Fig. 3 shows a side view of the training device according to the embodiment of Fig. 1;

Fig. 4a shows examples of a hinge of the training device according to an embodiment;

Fig. 4b, 4c, 4d show examples of parts of the training device according to an embodiment;

Fig. 4e shows examples of a compressible member of the training device according to an embodiment; and

Fig. 5 shows examples of side views of the training device. Description of Example Embodiments

In the following, several embodiments of the solution will be described in the context of dryland training of ice hockey. It is to be noted, however, that the solution is not limited to ice hockey training. In fact, the different embodiments have applications in any kinds of sports or rehabilitation where plyometric exercises or shooting exercises are advantageous, e.g. in golf.

Fig. 1 shows a side view of a training device 100 according to an embodiment. A training device 100 may comprise a body 130. The body 130 is substantially horizontal when in a preferred, horizontal use position of the training device as shown in Figs. 1 and 3. The training device may be placed on the ground or on a floor. The body 130 may comprise rails forming substantially a shape of a rectangular when viewed from the top. The body 130 may consist of a rigid material, for example steel or wood or plastic, substantially steel. The device 100 may comprise a first platform 110 comprising a first upper surface to step or jump on, a first interior edge 111 and a first exterior edge 112. The first platform 110 may be hingedly coupled on the body 130. The device 100 may comprise a second platform 120 comprising a second upper surface to step or jump on, a second interior edge 121 and a second exterior edge 122. The second platform 120 may be hingedly coupled on the body 130. More precisely, the first platform 110 and the second platform 120 may be rectangular plates or boards of rigid material, for example steel, wood or plastic, substantially wood. The rigid material is suitable, since it corresponds to the material which is under the foots and the skates when a user is skating. Alternatively, there may be more platforms, for example three, four or more. For example, the body may be modified to form a shape of a triangle when viewed from the top. Then, there may be a third platform positioned in a way that the platforms form the vertices of the triangle.

The measures of the platforms may be 30-50 cm x 30-50 cm, substantially approximately 40 cm x 50 cm. The size of the platform may be such that the platform is suitable for receiving a foot of the user when the user jumps from one platform onto another platform.

There may be a layer of rubber or some other suitable material positioned on the surfaces of the platforms to prevent slipping.

The first platform 110 and the second platform 120 are arranged on the body 130 to inclined positions, wherein the first platform 110 and the second platform 120 slant towards each other. When the first platform 110 and the second platform are slanted towards each other, the normal of the first upper surface and the normal of the second upper surface will intersect each other above the training device 100. The inclined position is a position, wherein the first interior edge 111 is lower than the first exterior edge 112, and the second interior edge 121 is lower than the second exterior edge 122. To put in in another way, a first sharp angle 150 is formed between a plane defined by the first platform 110 and a plane defined by the body 130 or a horizontal direction, and a second sharp angle is formed between a plane defined by the second platform 120 and the plane defined by the body 130 or a horizontal direction. The size of the angle 150 may vary. For example, the size of the first sharp angle 150 may be between e.g. 5 to 15 degrees, substantially approximately 7 degrees when the platforms are arranged to the inclined positions as in Fig. 1. The first sharp angle 150 may comprise a first interior 122, and the second sharp angle may comprise a second interior, and the first interior 122 and the second interior are extending to opposite directions in a way that the first interior 122 extends away from the second platform 120 and the second interior extends away from the first platform 110. In case of three platforms, for example, the inclination of the platforms may be arranged in a way that the interior edges of the platforms are inclined towards the center of gravity of the triangle mentioned above.

The first platform 110 is arranged to incline around a first axis of rotation 215 towards a horizontal position when a force is directed on the first upper surface. The first axis of rotation 215 may be below the first platform 110. The second platform 120 is arranged to incline around a second axis of rotation 216 towards a horizontal position when a force is directed on the second upper surface. The second axis of rotation 216 may be below the second platform 120. For example, when the user is jumping from one platform onto another platform, i.e. the first platform 110 and the second platform 120, a force is directed on the platforms during landing on the platform, and the platform inclines towards a horizontal position. The inclined position of the platform causes the angle between the leg and a horizontal plane to correspond to the position of the leg when the user is skating. The angle between the skate’s blade and the surface of the ice approximately corresponds to the angle between the leg of the user (or a normal of the platform’s upper surface) and the horizontal plane.

When jumping on fixed platforms or on stable ground, ankles and knees may suffer from harmful stress or loads.

The first platform 110 and the second platform 120 may further be enabled to reach a substantially horizontal position, such as shown in Fig. 3.

According to an embodiment, the first platform 110 is coupled to the body 130 by a first hinge system 135 and the second platform 120 is coupled to the body 130 by a second hinge system 136, wherein the first hinge system 135 defines the first axis of rotation 215 for the first platform 110 and the second hinge system 136 defines the second axis of rotation 216 for the second platform 120.

Fig. 2 shows a perspective view from below of the training device 100 according to an embodiment. The body may comprise rails, e.g. square pipe, forming substantially a shape of a rectangular when viewed from the top. Alternatively, the rails may form a shape of a triangle, a circle or some other shape, as long as the rails form a suitable base for the platforms between which the user may jump. For example, there may be rails 231, 232 parallel to each other and connected to each other by shorter rails 233, 234, 235, 236 orthogonal to the rails 231,232.

The first hinge system may comprise of a first hinge 210 and a second hinge 220. The first hinge 210 may couple one side 201 of the first platform to the body and the second hinge 220 may couple the other side 202 of the first platform to the body. An imaginary first axis of rotation 215 may be defined by the first hinge 210 and the second hinge 220. Thus, the first platform is arranged to incline or rotate around the first axis of rotation 215.

The second hinge system may comprise a third hinge 240 and a fourth hinge 250. The third hinge 240 may couple one side 203 of the second platform to the body and the fourth hinge 250 may couple the other side 204 of the second platform to the body. An imaginary second axis of rotation 216 may be defined by the third hinge 240 and the fourth hinge 250. The second platform may be arranged to incline or rotate around the second axis of rotation 216.

According to an embodiment, the first axis of rotation 215 and the second axis of rotation 216 are substantially horizontal in the horizontal use position of the training device as shown in Figs. 1 and 3. Alternatively, one of the sides 201, 202 of the first platform and/or one of the sides 203, 204 of the second platform may be arranged to be higher than the other. For example, there may be an elevating element arranged under the body, if one wants to exercise uphill skiing.

According to an embodiment, the first axis of rotation 215 and the second axis of rotation 216 are substantially parallel to each other. The first axis of rotation 215 may be parallel to the first interior edge 211 and the first exterior edge 212. The second axis of rotation 216 may be parallel to the second interior edge 221 and second exterior edge 222.

According to an embodiment, the first axis of rotation 215 is closer to the first exterior edge 212 than the first interior edge 211 and the second axis of rotation 216 is closer to the second exterior edge 222 than the second interior edge 221. In this way, the first platform may return, when the force directed on the first platform is removed, to the inclined position by gravity. The inclined position here is a position, wherein the first interior edge 211 is lower than the first exterior edge 212. Respectively, the second platform may return, when the force directed on the second platform is removed, to the inclined position by gravity. Alternatively or in addition, the returning of the platforms to the inclined positions may be caused by a recovering mechanics of the compressible members placed below the platforms, which will be described later. A location of the axis of rotation below the platform affects the inclination performance of the platform when a force is directed on it. The location defines on which portion of the upper surface of the platform the user should jump in order to cause the inclination of the platform. The distance between the axis of rotation and the interior edge of the platform may be at least approximately one fourth, or one third, of a width of a side of the platform which is orthogonally to the axis of rotation, or, of a width of the upper surface in a direction orthogonal to the axis of rotation. The closer the axis of rotation is to the exterior edge, the closer to the exterior edge the user has to jump to cause the inclination of the platform. To increase the lever arm, the distance between the axis of rotation and the interior edge of the platform may be arranged shorter. Preferably, the distance may additionally be less than approximately three fourths, or two thirds, of the width of the side of the platform which is orthogonally to the axis of rotation, or, of the width of the upper surface in the direction orthogonal to the axis of rotation.

The distance is defined by the hinge system. Preferable location for the axis of rotation may be below a central portion of the platform, the central portion preferably located between the minimum and maximum distances explained above. This enables the platforms of the training device to be used in several separate exercises, e.g. the jumping exercise explained above and a shooting exercise to be explained later.

According to an embodiment, the body 130 is extendable to adjust a distance between the first platform and the second platform. In the use position of the training device 100 as shown in Fig. 1, the body 130 is extendable in a horizontal direction. The adjustability of the distance may be realized by parts of the rails of the body, that may slide inside each other. For example, the rail 231 of Fig. 2 may have a first part and a second part. The diameter of the parts of the rails may be such that the first part has a smaller diameter than the second part. Thus, the first part may slide inside the second part, and this way, the distance between the platforms may be adjusted.

According to an embodiment, the distance between the first interior edge 211 and the second interior edge 221 is adjustable between 0 cm and approximately 200 cm. The distance may be adjustable continuously or in steps. A spring pin, or a shim, may be used to tighten the rails to a certain distance. Alternatively, there may be fastening means such as screws. In Fig. 1, it is shown the body 130 comprising the rail comprising screw holes 131, 132. The middle part of the body comprising the holes 131, 132 may fit to slide inside the exterior parts of the body. A screw 133 may be used to fasten the exterior parts of the body to the middle part.

The distance between the platforms may vary according to preferences or characteristics of the user. For example, the age, size, athletic level or strength of the user may affect which distance may be used during a jumping exercise. Bigger distance may be suitable for an adult who has good explosive power of the muscles. Smaller distance may be suitable for a child who is a beginner in jumping exercises. Smaller distance may be suitable in shooting exercises as shown in Fig. 3.

Fig. 3 shows a side view of training device 100 according to an embodiment. The user may perform dryland shooting exercises standing on the training device 100. The first platform 310 and the second platform 320 are placed close to each other, for example in a way that the distance between the interior edges is approximately 0 cm. Alternatively, the distance may be different, e.g. 10 cm or 20 cm, depending on the characteristics (e.g. size/height) and the preferences of the user. The user may stand close to or preferably on the axis of rotation, i.e. on the central portion of the platform. When the user is standing on the platforms in a way that one foot is on the first platform 310 and the other foot is on the second platform 320, the platforms 310, 320 are enabled to reach the substantially horizontal position also shown in Fig. 3. The inclination behavior of the platforms depends on how the weight is distributed on the legs and how the weight is transformed between the legs. Alternatively, the user may stand both foots on one platform during the shooting exercise, or stand on one foot on one platform. The way how the user stands on the platforms may depend on which kind of a shot the user exercises. Different types of shots are e.g. shovel, wrist, snap or slapshot.

According to an embodiment, the first upper surface and the second upper surface of the training device are at a height of 3 to 10 cm, substantially 7 cm, from the ground when the first platform and the second platform are in the substantially horizontal position. The height (marked with arrow 330 in Fig. 3) of 7 cm corresponds the height of the foot from the ice when the user is wearing skates and standing or skating on the ice.

Conventionally, the shooting exercises are carried out on a stable ground. Standing on the stable ground while performing shooting exercises does not correspond to a situation on ice. When the platform is not totally stable, the situation better corresponds the situation on the skates, because during skating and playing on skates, the angle between the skate’s blade and the ice varies. When the shooting exercise is performed in circumstances which imitates a real situation on the ice when playing ice hockey, the utility of the exercise increases. Shooting hard and learning and teaching to shoot hard may be difficult while standing still on the stable ground, because the weight transfer of the legs may not be observed and analyzed.

When shooting, the weight transfer between the legs is important. More precisely, the weight transfer from the back leg at the start of the shot to the front leg with the completion of the shot on the follow through is important. Further, when considering the front foot, the weight transfers from the heel or sole until to the toes. When the body moves forward while shooting, there may be more momentum behind the shot. Considering the dryland training, the forward movement of the body and the weight transfer to the toes of the front foot may be better observed and/or analyzed and/or taught using the training device according to the solution. The inclination of the platforms during weight transfer will change the angle(s) of the leg(s) in reference to the ground. The work performed by the ankle while pushing downwards towards the counterforce caused by the compressible members placed below the platforms (described later), around the axis of rotation, may be observed. Further, the counterforce caused by the compressible members will aid in improving the explosive power of the legs needed in strong shot. Using the training device according to the solution, exercising the sensorimotor skills may be more efficient.

Weight transfer exercises are beneficial in rehabilitation of the patients suffering from e.g. hip or knee problems.

Activating the gluteus medius of the user during skating stride and shooting may be improved by exercising the training according to the solution.

According to an embodiment, the training device may further comprise locking devices for immobilizing the first platform and/or the second platform. Thus, it may be possible to lock the position of the platforms, if the user wants to exercise on stable platforms. The locking means may be for example a bushing. The user may want to use the training device in a way that one platform may incline while the other platform is fixed to a certain position. Alternatively, the immobilization of the platforms may be realized by using the compressible member(s) (described later) with high stiffness.

According to an embodiment, the training device 100 may comprise one or more compressible members 140, 141, 142, 143 positioned below the first platform 110 and/or the second platform 120, as shown in Fig. 1. The compressible members may be positioned inside the first hinge system 135 and/or the second hinge system 136.

According to a preferred embodiment, the compressible members 140, 142 set the platforms 110, 120 to the inclined positions with predetermined inclination angles.

Fig. 4a shows examples of a hinge 410 suitable to be used in the hinge system. The hinge 410 may be coupled to the platforms for example by using screws or some other suitable fastening means. There may be screw holes 411, 412 on top of the hinge 410. The compressible members may be positioned inside the hinge 410, for example in a U-form or a groove 425 in the hinge 410. Screw holes 430, 431, 432 may be used when coupling the hinge 410 to the body of the training device.

Fig. 4b, 4c and 4d show examples of parts of the training device according to an embodiment. Fig. 4b shows an exterior part 450 of the body of the training device. The hinge 410, 420 may be coupled to the exterior part 450 through fastening members 460, 461. In other words, the screw holes 411, 412 and the fastening members 460, 461 are suitable for receiving the same screw or a pin. The fastening members 460, 461 define the axis of rotation for the platform of the training device, and their distance from the exterior edge and the interior edge of the platform define the inclination performance of the platform when a force is directed on the platform.

When the hinge 410 is positioned on the exterior part 450 of the body, the compressible members explained below may be positioned between the hinge 410 and rails 451, 452 in the body. Fig. 4c shows a top view 470 of the exterior part 450 with the platform hingedly coupled on the exterior part 450. Fig. 4d shows a bottom view 480 of the exterior part 450 with the platform hingedly coupled on the exterior part 450.

Fig. 4e shows examples of the compressible members of the training device according to an embodiment.

For example, the compressible member may have a wedge like shape which may fit inside the hinge 410, 420. A first compressible member 470 and/or a second compressible member 471 may be placed inside the hinge 410, 420 in a way that the first compressible member 470 may reside on one side of the screw hole 430 or the rotation axis 215, 215 and the second compressible member 471 may reside on the other, opposite side of the screw hole 430 or the rotation axis 215, 215.

According to a preferred embodiment, the second compressible member 471 sets the platform to the inclined position with a predetermined inclination angle.

For example, the first compressible member 470 may be positioned closer to the interior edge of the first platform and/or the second platform of the training device, and the second compressible member 471 may be positioned closer to the exterior edge of the first platform and/or the second platform of the training device. In Fig. 1, the compressible member 141, corresponding to the first compressible member 470, is positioned closer to the first interior edge 111 and the compressible member 140, corresponding to the second compressible member 471, is positioned closer to the first exterior edge 112. Respectively, the compressible member 143 (corresponding to the first compressible member 470) is positioned closer to the second interior edge 121 and the compressible member 142 (corresponding to the second compressible member 471) is positioned closer to the second exterior edge 122.

The compressible members may have a plurality of functions. For example, the first compressible member 470 or the compressible members closer to the interior edges of the platform may reduce sounds produced by the structures of the training device, for example the platform and the body, hitting each other during jumping. The compressible member 470, 471 below the platform compresses when a force is directed on the platform, and returns to its original volume when the force is removed. The compressible members closer to the exterior edges of the platform, or the second compressible member 471, produces a counterforce opposing the force and resisting the compression of the compressible member.

When the user jumps on one platform, the counterforce produced by the second compressible member 471 affects the force directed downwards that has to be produced by the user when jumping back to the other platform. Different values of stiffness of the second compressible member 471 may be used according to the characteristics and/or the preferences of the user. For example, a user of higher weight may use a stiffer compressible member than a user of lower weight. According to an example, the compressible member with a predetermined stiffness may be replaced with another compressible member with a different, predetermined stiffness to change the produced counterforce.

The compressible member may possibly loose its elastic characteristics after extensive use of the training device. Therefore, the compressible member may be replaceable, i.e. changed to a new one. The second compressible member 471 may function as a returning element, i.e. the compressible member may cause the rebound of the platform after jump. When the force directed on the platform is removed, the compressible member will by itself return to its original volume and simultaneously forces the platform to return to the inclined position. Thus, the exterior edge of the platform will be lifted higher and the interior edge of the platform will be lowered. The compressible members may function as a shock absorber which absorbs the energy transferred between the ground and the foot during jumping and distributes the impact forces thus providing protection for the joints.

The material of the compressible members may be at least partly or substantially cellular plastic providing the counterforce at least partly. Young’s modulus or elastic modulus measures material’s resistance to being deformed elastically (non-permanently) when a force is applied to it. A stiffer material will have a higher elastic modulus. The compressible members may include one or more springs providing the counterforce at least partly, e.g. helical springs with a predetermined stiffness. Stiffer materials or springs will produce a higher counterforce. Material with high enough stiffness may be used to immobilize the platforms. The compressible member may be replaced with a member made of incompressible material to immobilize the platform.

When the compressible member returns to its original volume in a viscoelastic manner, the returning is smooth and not too explosive. Too explosive returning may be uncomfortable for the user and may cause injuries. The returning may be fast enough such that the platform has enough time to return to the so called start position before the next jump. Preferably, the start position corresponds to the inclined position of the platform.

If the training device is used outside, the suitable material is such that it will not get moist and loose its characteristics. Cellular plastic is suitable material to be used outside.

According to an embodiment, the training device has only the second compressible member 471. The first compressible member 470 may be replaced with a member suppressing hits, impulses and sounds. According to an embodiment, the first compressible member 470 may be stiffer than the second compressible member 471. In other words, the compressible member positioned closer to the interior edges of the platforms may have a first stiffness and the compressible member positioned closer to the exterior edges of the platforms may have a second stiffness, and the first stiffness may be higher than the second stiffness. Material with high stiffness does not wear during extensive use. The first compressible member 470 may prevent the structures of the training device from hitting each other during jumping or transport, and thus reduce sounds produced by the hitting. The first compressible member 470 may cause elasticity to the inclination.

The material of the first compressible member 470 and/or the second compressible member 471 may be at least partly or substantially cellular plastic (polyethene) providing the counterforce at least partly. Density of the cellular plastic describes the stiffness of the cellular plastic. The density of the first compressible member (i.e. the first stiffness) may be 45 to 60 kg/m3, e.g. 50 kg/m3, and the density of the second compressible member (i.e. the second stiffness) may be 20 to 35 kg/m3, e.g. 30 kg/m3.

According to an embodiment, the training device may further comprise an integrated angle ruler indicating an inclination angle of the platform, e.g. in relation to a horizontal direction. The angle ruler may be placed for example on the side of the body of the training device and it may be placed such that the horizontal position corresponds to the angle of 0 degrees. The user may check the inclination angle from the ruler.

According to an embodiment, the training device may further comprise fastening elements for one or more elastic cords comprising a first end attachable e.g. to the platform or the body, and a second end attachable to a user using the training device. For example, a first elastic cord may comprising a first end attachable to the first platform and the second end attachable to the user using the training device, and a second elastic cord may comprise a first end attachable to the second platform and a second end attachable to the user. The user may, for example, wear a belt which the second ends of the elastic cords may be attached to. Using the elastic cords the user may increase the resistance, i.e. more downward directed power is needed when jumping from one platform to another. The training device may need to be fastened to the ground while exercising using the elastic cords.

According to an embodiment, the training device may further comprise a fence positioned between the first platform and the second platform. When a user wants to add difficulty of the jump training, the fence positioned between the platforms forces the user to jump higher. The fence may be of flexible material, e.g. soft foam plastic, that the user may not injure if the user stumbles and falls down on the fence.

Fig. 5 shows examples of side views 510, 520, 530, 540 of the training device according to an embodiment. The platforms of the training device may be inclined or horizontal. The platforms may be at different distances from each other.

The training device may comprise one or more wheels for easily moving the training device. The training device may comprise one or more handles for carrying the training device.

The various embodiments may provide advantages. Since the platform of the training device is hingedly attached to the body of the training device, the user/jumper has to find the balance after landing on the platform and before jumping the next jump to another platform of the training device. When jumping between the platforms of the training device, the user may more easily recognize the muscles that should be activated during the skating stride, since the user has to use force directed inclinedly downwards. This is beneficial when aiming to improve the skating technique. The training device may be used in strength training. The training device may be used in sport specific performance testing. The training device may be used in shooting exercises.

The present solution is not limited solely to the above-presented embodiments, but it can be modified within the scope of the appended claims.

Claims

A training device comprising: - a frame, - a first base hinged to a frame having a first upper surface, - a second base hinged to a body having a second upper surface having a training device, - a first base and a second base can be arranged in inclined positions the second platform is inclined to one another, - the first platform is arranged to tilt about the first axis of rotation in the horizontal position when the training device is in horizontal operating position and the first upper surface is subjected to force, and a force is exerted in the operating position and the second upper surface, and the training device further comprises - at least one compressible member disposed beneath the first base and / or the second base and generating said force resisting counter-force and resisting compression of the compressible member, and wherein - the first rotation axis is located below the center portion of the first base and the second rotation axis is located below the center portion of the second base;

The training device according to claim 1, wherein the first base is connected to the body by a first hinge mechanism and the second base is connected to the body by a second hinge mechanism, the first hinge mechanism defining a first pivot axis for the first base and the second hinge mechanism defining a second pivot axis.

Training device according to any one of claims 1 to 2, wherein the first substrate has a first inner edge and a first outer edge, a second substrate has a second inner edge and a second outer edge, and wherein the first pivot axis is closer to the first outer edge and the second pivot axis is closer to the second outer edge the inner edge.

The training device according to any one of claims 1 to 3, wherein the body is extendable to adjust the horizontal distance between the first substrate and the second substrate.

The training device according to claim 4, wherein the horizontal distance between the first inner edge and the second inner edge is infinitely adjustable or stepwise.

The training device according to any one of claims 1 to 5, wherein the material of the at least one of the at least one compressible member is at least partially foamed.

Training device according to any one of claims 1 to 6, wherein said at least one compressible member is replaceable.

Training device according to any one of claims 1 to 7, comprising a first substrate having a first inner edge and a first outer edge, a second substrate having a second inner edge and a second outer edge, and further comprising a plurality of compressible members disposed below the first substrate and / or second substrate; , which is positioned closer to the first inner edge than the first outer edge and / or said compressible member disposed closer to the second inner edge than the second outer edge has a first rigidity, said compressible member disposed closer to one outer edge than the second inner edge having a second stiffness, and wherein the first stiffness is greater than the second stiffness.

The training device according to any one of claims 1 to 8, wherein the first upper surface and the second upper surface are at a height of 3 to 10 cm, substantially 7 cm, with the first base and the second base in substantially horizontal positions.

The training device according to any one of claims 1 to 9, further comprising a built-in angle gauge for indicating the inclination angle of the first base or the second base.

Training device according to one of claims 1 to 10, further comprising fastening elements for fastening one or more flexible ropes.