MUSCLE STRENGTHENING DEVICE
The invention provides an exercise apparatus that is three-dimensionally adjustable to mimic sport-specific motions to enable a user to enhance neuromuscular coordination and develop sport-specific muscles. The apparatus provides unilateral or bilateral exercise. The apparatus has at least one cam assembly that rotates about the x-axis. Each cam assembly has a rotatable cam that rotates about the z-axis and is tensioned in one direction. A handle that rotates about the y-axis is mounted to the face of rotatable cam. Optionally, the apparatus has an adjustable height. The invention is also a method of using the apparatus to develop sport-specific muscles.
This application claims priority to U.S. patent application Ser. No. 10/857,080, filed on May 28, 2004.
FIELD OF THE INVENTIONThe invention relates to an exercise apparatus for strengthening muscles and particularly to an exercise apparatus that strengthens the user's tipper extremities, thereby enhancing muscle strength and improving the user's swing in sports that utilize a swinging motion, such as golf, tennis, or baseball.
BACKGROUND OF THE INVENTIONMany athletes who participate in sports such as golf, tennis, or baseball wish to increase the power of their swing. The prior art has recognized the importance of muscle strengthening to achieve this goal, and there are a number of exercise devices known in the prior art that are devoted to strengthening the muscles used in a swinging motion. These devices have a number of associated short-comings and therefore they have never been widely used. For example, these devices are designed to train and strengthen gross movements rather than providing training or exercise for a specific swing. Further, these devices do not provide variable resistance or training for muscles, ligaments, and the like used at the moment of impact.
SUMMARY OF THE INVENTIONThus, there is a need for a device that strengthens sport-specific muscles. The present invention meets this need by providing a novel exercise apparatus that can be adjusted to each user's height, arm length, torso length, and stance. Such adjustability enables a user to enhance neuromuscular coordination and develop specific muscles. In particular, the apparatus can be adjusted to mimic the swinging motion involved in a specific sport at the moment of impact, such as golf, tennis, or baseball, by causing the user to rotate the hands, wrists, forearms, and shoulders as he would when swinging a club, racquet, bat, or otherwise. Such motions strengthen the muscles of the upper extremities used in the swinging motion and increase the power of the user's swing. The apparatus may be used unilaterally or bilaterally. In another example, the apparatus may be used in muscle rehabilitation following injury or surgery, such as to improve range of motion in the upper extremities.
The apparatus comprises at least one cam assembly that rotates about an x-axis. Each cam assembly comprises a rotatable cam that rotates about the z Taxis in first and second directions. A handle that rotates about the y-axis is mounted on the face of the rotatable cam. Optionally, rotatable cam is mounted to a cam support. In an example, the apparatus comprises a pair of cam assemblies to provide bilateral exercise or training. In examples, the apparatus is removably attached to a stand, base, or the like, and preferably has an adjustable height to accommodate use in a variety of stances and users of various heights and arm lengths.
Therefore, it is an object of the present invention to provide an exercise apparatus that mimics the motions of various sports, especially those sports that use clubs, racquets, bats, or the like, in order to improve performance by enhancing neuromuscular coordination and strengthening muscles.
It is another object of the invention to provide an exercise apparatus that adjusts to the user's sport-specific impact position.
It is still a further object of the invention to provide an exercise apparatus that adjusts to the user's specific height.
It is still a further object of the invention to provide an exercise apparatus that increases resistance to injury of muscles, ligaments, and connective tissues used in the swinging motion by strengthening those muscles.
It is yet another object of the invention to provide an exercise apparatus that increases resistance to injury of muscles, ligaments, and connective tissues used at the moment of impact in a swinging motion.
It is still a further object of the invention to provide an exercise apparatus that rehabilitates injured muscles, ligaments, and connective tissues that are used in the swinging and/or gripping motions.
It is yet another object of the invention to provide an apparatus that trains sport-specific neuromuscular pathways.
It is another object of the invention to provide an apparatus that provides resistance exercise.
BRIEF DESCRIPTION OF THE DRAWINGS
The exercise apparatus 100 is adjustable along the x-, y-, and z-axes to provide a three-dimensionally adjustable apparatus 100 that enhances neuromuscular coordination and strengthens muscles by mimicking particular motions and impact positions. In an example, the three-dimensional adjustment of the apparatus 100 mimics the motions and impact positions used in a particular sport, such as golf, tennis, hockey, or any other sport using clubs, racquets, or bats, thereby strengthening sport-specific muscles that are used to perform those specific motions and/or assume those specific positions. In examples, the apparatus 100 also strengthens muscles used to grip a club, racquet, or the like, by strengthening hand intrinsic muscles. Use of apparatus 100 helps to coordinate the nervous system, and neuromuscular pathways in particular, thereby increasing neuromuscular proficiency at the moment of impact, such as that used to accomplish a sport-specific swing. Thus, the apparatus 100 trains and strengthens muscles used at the moment of impact, one moment in the swinging action at which substantial shock to the user's muscles, ligaments, and joints occurs. The adjustability of the apparatus 100 also permits use as a rehabilitative tool, such as by providing resistance training to muscles, ligaments, and connective tissues that are used in a swinging motion
As shown generally in the figures, and particularly in
As shown in the figures, and particularly in
In examples, the adjustable handle 30 permits the exercise apparatus 100 to be used for muscle training for a variety of sports by enabling the user to approximate the orientation of the hands used to grip a particular piece of sports equipment, such as a club, racquet, or bat. As shown in
Optionally, cam assembly 10 further comprises at least one resistance means 40 attached to rotatable cam 20. Resistance means 40 is, for example, a resistive band such as those shown in the figures, or springs, hydraulic mechanisms, electromagnetic mechanisms, weights, or any other means for imparting resistance known in the art (not shown). Preferably, resistance means 40 imparts greater resistance to user as user 300 rotates rotatable cam 20 in first direction 21 and less resistance as cam 20 is rotated in second, or reciprocal, direction 22. In examples, resistance means 40 has a length such that resistance means 40 becomes increasingly taut to impact greater resistance to user 300 and decreasingly taut as rotatable cam 20 reciprocally rotates in second direction 22 as user 300 rotates rotatable cam 20 in first direction 21.
Preferably, resistance means 40 is removable such that apparatus 100 may be used without resistance means 40 or resistance means may be interchanged with resistance means 40 of greater or lesser resistance depending on any of a variety of factors including but not limited to the user's strength and training or rehabilitation goals. In an example, resistance means 40 is attached to cam 20 by a locking means 45 such as the one shown in
In the example shown in
In another example, cam assembly 10 is mounted on a first end 51 of an extensible support 50 as shown in
Resistance means 40 and the speed of rotation can be varied. For example, using a lighter resistance in combination with a higher speed of rotation increases the speed of the swing, while using a higher resistance in combination with a smaller number of repetitions increases muscle strength. Using a lighter resistance in combination with more repetitions increases circulation to muscles and soft tissues, which facilitates recovery from injury.
While presently preferred embodiments of the invention have been shown and described, the invention may be otherwise embodied within the scope of the appended claims.
Claims
1. An exercise apparatus that strengthens or rehabilitates a user's muscles, said apparatus comprising at least one cam assembly that rotates about an x-axis, said at least one cam assembly comprising:
- a rotatable cam having a face and rotating about a z-axis in first and second directions; and
- a handle that is mounted on a face of said rotatable cam, said handle rotating about a y-axis.
2. An exercise apparatus as in claim 1, said exercise apparatus further comprising a support having first and second ends.
3. An exercise apparatus as in claim 2, wherein said support is extensible.
4. An exercise apparatus as in claim 2, wherein said at least one cam assembly is mounted on said first end of said extensible support.
5. An exercise apparatus as in claim 1, said exercise apparatus further comprising a base.
6. An exercise apparatus as in claim 5 wherein said base has a plurality of adjustable levelers on a bottom surface.
7. An exercise apparatus as in claim 5 wherein a top surface of said base is a non-slip material.
8. An exercise apparatus as in claim 1, said apparatus comprising two cam assemblies.
9. An exercise apparatus as in claim 8 wherein said cam assemblies are adjustable about said x-axis as a single unit.
10. An exercise apparatus as in claim 1, each said at least one cam assembly further comprising a cam support on which said rotatable cam is mounted.
11. An exercise apparatus as in claim 1, each said at least one cam assembly further comprising at least one resistance means attached to said rotatable cam.
12. An exercise apparatus as in claim 11, wherein said at least one resistance means is tensioned in one of said directions.
13. An exercise apparatus as in claim 11, said at least one cam assembly further comprising a locking means that attaches said resistance means to said rotatable cam.
14. An exercise apparatus as in claim 11 wherein said resistance means is one of the following:
- a. a resistive band;
- b. a spring;
- c. a hydraulic mechanism;
- d. an electromagnetic mechanism;
- e. at least one weight; or
- f. a combination thereof.
15. An exercise apparatus as in claim 1 wherein an angle of rotation of said rotatable cam about said z-axis is less than about 360°.
16. An exercise apparatus as in claim 1 further comprising a stop mechanism that limits said rotation of said rotatable cam about said z-axis.
17. An exercise apparatus as in claim 1, each said at least one cam assembly further comprising a handle mount attached to a face of said rotatable cam.
18. A method of using a three-dimensionally adjustable exercise apparatus to strengthen or rehabilitate a user's muscles, said exercise apparatus comprising at least one cam assembly, said at least one cam assembly comprising a rotatable cam and a handle mounted on a face of said rotatable cam, said method of use comprising the steps of:
- a. facing said exercise apparatus and assuming a desired stance;
- b. adjusting said at least one cam assembly by rotating said cam assembly about an x-axis;
- c. adjusting said handle by rotating said handle about a y-axis;
- d. gripping said handle; and
- e. rotating said rotatable cam about a z-axis for a number of repetitions.
19. A method of using said exercise apparatus as in claim 18, said method further comprising the step of adjusting a height of an extensible support on which said cam assembly is mounted.
20. A method of using said exercise apparatus as in claim 18, said method further comprising the step of selecting and attaching a resistance means to said rotatable cam.
Type: Application
Filed: Jan 25, 2007
Publication Date: Jun 7, 2007
Inventor: Michael Karafa (Pittsburgh, PA)
Application Number: 11/627,029
International Classification: A63B 21/06 (20060101); A63B 21/008 (20060101); A63B 21/02 (20060101);