DE102015004444A1 - Exerciser for the rotator cuff of the shoulder - Google Patents

Abstract

The human shoulder rotator cuff exercise apparatus comprising: - two handles and - at least one resistance element, the handles being coupled together by the resistance element, the resistance element providing substantially constant resistance to mating and disengaging the handles; wherein the resistance element for generating the resistor comprises a hydraulic damper, wherein the damping intensity is adjustable.

Description

Exercise devices of conventional design for training the shoulder muscles / rotator cuff use as resistance a weight, a spring, a pneumatic or a hydraulic mechanism. In exercise machines with weights, the resistance is proportional to the weight. Usually, only one arm is trained at this time, and furthermore only the inner or the outer rotation. Exercise machines of this kind are mostly stationary. For devices with spring mechanism, the resistance is not constant, but depends on the travel. A common device according to this principle in the physiotherapeutic application for training the rotator cuff is the Theraband. Here, a motion control is not specified by the device. In the case of exercise machines on a pneumatic basis, the concrete resistance does not set itself immediately, but depends on the compressibility of the medium depending on the parameters work path and speed. The medium air acts like a spring. Compressible devices train the internal rotators, expandable devices train the external rotators. Both functions together to train the Rotatorenmanschette are not possible with the commercially available devices. For devices with hydraulic application, the forces are speed-dependent. Devices of this type currently train only one arm and require a stationary support to fix the device to perform the exercise.

Such exercise devices are used for muscular stabilization of the shoulder and to reduce or avoid shoulder pain. Internal and external rotator training results in an enlargement of the joint space in the shoulder and muscular stabilization, preventing painful pinching of the supraspinatus tendon. Not all devices currently known provide training of both shoulders simultaneously, which can cause a muscular imbalance. Furthermore, most known exercise devices do not provide a precise direction of movement, so that muscular damage due to incorrect movement can not be excluded. Physical differences in size are usually not compensated by the training device. An adjustable resistance, which provides for an individual difficulty adjustment of the exercise, is absent with most devices. Not all known devices produce a uniform resistance, which is required for a gentle use of the muscles.

The invention defined in claim 1 is based on the problem of providing a training device for the shoulder musculature / rotator cuff that trains both shoulders at the same time, which trains both the inner and outer rotators, which defines the direction of motion and which generates a uniform resistance, wherein the resistance must be adjustable. Physical differences in size must be able to be compensated. The device should be light, handy and portable, so training at home and on the move is possible.

This problem is solved with the features listed in claim 1.

With the underlying invention it is achieved that both shoulders are uniformly and simultaneously trained by pulling apart and squeezing the damping cylinder on the handles attached to the cylinder body or the piston rod end, and that both the inner and the outer rotators are trained with an exercise device. A special hydraulic damper generates a constant resistance at constant speed, in both directions of movement. In addition, the attenuation intensity can be adjusted manually. Due to the design of the device, the correct direction of movement is given. By the possibility of changing the distance of the handles, the device can be adapted to the individual body size. Due to the handy size, the device is easy to transport and can be used everywhere.

The invention will be explained in more detail in the following description with reference to the figures given in the drawings.

Show it,

1 Pictorial representation of the device according to the invention

2 Enlarged individual representation of the adjusting device in section

3 Application representation according to the invention

The exercise device on which the invention is based consists of the base element "adjustable hydraulic damper", 2 handles and fasteners for the handles.

The hollow piston rod 2 is with the hydraulic piston 3 mounted in the cylinder 1 can perform a defined stroke by displacing the trapped oil. The Ölflußgeschwindigkeit and thus the damping effect is adjustable via a throttle valve disposed in the piston, via a guided in the hollow piston rod, axially displaceable, spring-loaded adjusting rod 10 , The adjusting ring 4 can be screwed to the adjustment housing 11 arranged. By twisting the ring is the cross pin 13 against the adjusting rod 10 pressed and thus the oil flow in the throttle valve of the piston 3 adjusted. The cross pin 13 is guided in 2 opposite, in the adjustment housing 11 milled oblong holes. The adjustment housing 11 is with the piston rod 2 bolted and over the lock nut 12 axially secured. The piston side connection eye fourteen is via thread M8 with the adjustment housing 11 screwed.

The piston side handle 5 engages with a threaded bolt M10 in the bore of the fitting fourteen and is fixed on the hex nut 8th , The cylinder-side handle 6 is screwed directly to the aluminum clamping piece via a threaded bolt M10 7 that causes an axial displacement on the cylinder 1 allows and thus an individual adaptation to the anatomy of the exerciser. The clamping piece 7 is slotted on one side and becomes axial to the cylinder 1 fixed with a hexagon socket screw M6 with hexagon socket, pos. 9 ,

Due to the design, the forces are constant with uniform ejection and insertion movement. Due to greater movement speed, the resistance increases accordingly. An additional adjustment of the damping intensity is achieved by turning the adjusting ring 4 ,

For physical reasons, the forces acting on both arms are constant.

LIST OF REFERENCE NUMBERS

1

cylinder

2

piston rod

3

piston

4

adjusting

5

Handle piston side

6

Handle cylinder side

7

Clamp for handle 6

8th

Locking nut for handle 5

9

Fixing screw for clamping piece

10

Valve adjustment rod

11

adjustment housing

12

locknut

13

Cross pin for adjustment

14

Connection eye on the piston side

Claims (9)

Exerciser for the rotator cuff of the human shoulder, comprising: - two handles and At least one resistance element, wherein the handles are coupled together by the resistive element and the resistive element is for creating a substantially constant resistance to mating and also disjointing of the handles; wherein the resistive element for generating the resistor comprises a hydraulic damper, wherein the attenuation intensity is adjustable. Exercise device according to claim 1, wherein the hydraulic damper comprises a piston, a piston rod and a liquid-filled cylinder, wherein the piston is attached to the piston rod and guided in the cylinder, wherein the piston has a resistance-determining passage for liquid. Exercise device according to claim 2, wherein the effective cross section of the liquid passage is adjustable. Exercise device according to claim 3, wherein an adjusting rod is provided in the piston rod, with the longitudinal movement of which the cross section of the fluid passage is adjustable, wherein the adjusting rod is pressed against a spring force to change the cross section of the liquid passage through a guided in two opposite slots of the adjusting pin against wherein the pin is provided between the adjusting rod and an adjustable in the longitudinal direction of the piston rod adjusting ring. Exercise device according to claim 4, wherein an axially adjustable threaded adjustment ring presses against the pin, wherein the thread of the adjusting ring is paired with the external thread of the adjusting housing, wherein the adjusting housing is screwed to the piston rod and axially secured by a lock nut. Exercise device according to one of the preceding claims, wherein the handles extend perpendicular to the longitudinal axis of the hydraulic damper. Exercise device according to one of the preceding claims, wherein one of the handles engages with its threaded end in a bore on the piston end and is fixed with a nut. Exercise device according to one of the preceding claims, wherein one of the handles is attached by means of a releasable clamping piece on the resistance element such that upon release of the clamping piece, the distance of the handles from each other is adjustable, wherein the clamping piece is designed slit on one side and is fixed axially via a cylinder screw. Use of an exercise device according to any one of the preceding claims, in the form that both elbows bear tightly against the body laterally, the arms being bent forward at right angles and the device being grasped by the handles with both hands. At the handles, the piston rod is pulled out and compressed again.

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