The present invention relates to an exercise apparatus, and more particularly, to an exercise apparatus that functions to provide both aerobic and strength training as well as the benefits of stretching to a user.
Exercise apparatuses are known which generally utilize a flexible and stretchable resistance member extending between spaced-apart handle portions. The stretchable member comprises, for example, a bungee cord or a band made of rubber or other elastomeric material. Holding the handles at each end of the stretchable member, and using any of many well known exercise routines in which a portion of the apparatus is anchored to a fixed support, muscle strength training can be achieved by application of repetitive force acting against the elastic resistance to elongation of the stretchable member.
While being quite effective in achieving gains in muscle tone and mass when diligently used as part of an exercise training program, an apparatus of the aforementioned type does not provide the cardiovascular or pulmonary benefits of aerobic exercise.
Jump ropes have long been used to achieve cardiovascular fitness when used regularly in aerobic exercise routines. Such routines generally involve a user holding handles which are disposed at opposed ends of a rope or other flexible member, and skipping or jumping repetitively in synchronization with the rope swung so that it passes under the feet and over the head of the user.
While being capable of imparting the associated cardiovascular benefits attributed to aerobic exercise, jump ropes can provide nothing in the way of resistance training.
Generally speaking, in carrying out an exercise routine of almost any form, whether directed to strength training or cardiovascular workouts, the involved muscles contract in order to achieve flexing of a particular body part or region controlled thereby. Stretching after exercise can help to relieve tension of the involved muscles or muscle groups which have been subjected to repeated contraction.
Stretching in advance of exercise is also believed to help in the prevention of athletic related injuries. The use of stretching before or after exercise can, therefore, be an important part of any strength/endurance program.
Heretofore, it has not been possible to gain the attendant benefits of resistance training, stretching and aerobic exercise by use of a single apparatus.
It would therefore be desirable to provide an apparatus, apparatus feature and method of use which provide the user with a choice of exercise and stretching options using the same apparatus in different ways.
It is an object of the invention to provide an exercise apparatus which overcomes the drawbacks of the prior art.
In is a further object to provide such apparatus in a form which can easily be selectively and adjustably configured to be suited to a particular exercise being performed.
In accordance with these and other objects of the invention, there is provided an apparatus which comprises an elastic portion comprised of one or more elastic members which interconnects a pair of spaced apart handles. Each of the handles includes a structural feature which allows the orientation of a handle grip axis to be readily adjusted relative to the extended direction of the elastic portion in order to achieve a configuration respectively suited to either aerobic, jump rope activity, or to resistance training and stretching.
An apparatus in accordance with an embodiment of the invention includes an elastic portion comprising at least one flexible elastic member which resists stretchable elongation and which substantially returns to an original length upon release of an applied stress causing the elongation, conveniently comprising, for example, a conventional bungee cord (or two or more bungee cords, for example, optionally braided, etc., for increased resistance). A pair of handles, each includes a grip portion having a longitudinal handle grip axis. The handles are carried on the elastic portion in spaced apart locations therealong, and are structurally configured to allow selective orientation of an extended direction of the elastic portion either codirectional with the handle grip axis or crosswise thereto.
When the apparatus is used for aerobic exercise, the elastic portion is generally used in a first orientation relative to each of the handles, in which the extended direction of the elastic portion is codirectional with the handle grip axis. The handle is structurally configured to allow the elastic portion to be moved to a second orientation in which the extended direction of the elastic portion is oriented crosswise to the handle grip axis. When in this second orientation, the exercise apparatus is generally better suited to use in resistance training and/or for stretching purposes. However, it is noted that some users may prefer the first or second orientations for other than the above noted generally suited purposes, i.e., the first orientation being used for some resistance routines and/or the second orientation for jumping rope. Thus the choice of orientations can, if desired, be left up to the particular user.
In accordance with an advantageous embodiment, each of the pair of handles includes a bore coaxial with the handle grip axis through which the elastic portion is receivable when the apparatus is in the first orientation suited for use as a jump rope. The handles are carried on the elastic portion in spaced apart locations therealong, and each of opposed ends of the elastic portion is advantageously configured in a manner which prevents separation of the elastic portion from the handles. This is conveniently accomplished by the provision of an opening in the grip portion through which the ends of the elastic portion are passed and knotted. As such, the handles are slidable along the elastic portion to allow an adjustment of a distance between the handles, while at the same time, removal of the handles is prevented past the knots when they are moved further apart to the opposed ends of the elastic portion.
A slotted opening is provided in the grip portion which is narrower than a width of the elastic portion when in an un-stretched state, such that the elastic portion is captively held within the coaxial bore for jump rope activity in the first orientation. When the user decides to engage in resistance training or stretching, he/she simply stretches the elastic portion until the width thereof is reduced sufficiently to allow the elastic portion to clear the slotted opening, thereby allowing the elastic portion to be freed from the coaxial bore, and moved into the second orientation crosswise to the coaxial bore.
In accordance with a particularly advantageous embodiment, the handles each further includes an extension portion arranged crosswise to the grip portion, which includes a bore communicative with the coaxial bore running crosswise thereto, and an other slotted opening of like or similar width to the slotted opening in the grip portion and contiguous therewith. Such configuration allows the elastic portion to be moved between the first and second orientation simply by maintaining a stretched state of the elastic portion which sufficiently reduces the width of the elastic portion to allow manually directed transfer of the elastic portion to and from each of the bore (first orientation) and the coaxial bore (second orientation). Removal of the stretching force causes the width of the elastic portion to return to a size which inhibits removal of the elastic portion through either of the slots. Since the forces acting on the elastic portion during resistance training or stretching are codirectional with the bore of the extension portion of the handle, dislodging of the elastic portion from the bore of the extension portion does not occur through the slotted opening, even though the width of the elastic portion is repetitively reduced.
Another embodiment includes an optional anchoring mechanism which allows a length segment of the elastic portion to be adjusted between the handles, so as to allow, for example, adaptability for users of various height or stature, or the resistance against elongation to be varied during use of the device for resistance training (shortening of the distance between handles thereby increasing the resistance against elongation, and lengthening thereof making the exercise easier to perform). The anchoring mechanism serves to selectively secure the elastic portion at a position along the length of the elastic portion within the handle after a length between handles is selected.
The above, and other objects, features and advantages of the present invention will become apparent from the following description read in conjunction with the accompanying drawings.
Referring now to the figures, and in particular
Handle 10 includes a grip portion 1 having a longitudinal handle grip axis L. Grip portion 1 includes a slotted opening 1a into a coaxial bore 1b which runs codirectionally with handle grip axis L, and has a width that is narrower than an elastic portion 20 (not shown in
Optionally, handle 10 further includes an extension portion 3 arranged crosswise to the grip portion 1, which includes a bore 3b communicative with the coaxial bore 1b running crosswise thereto, and an other slotted opening 3a of like or similar width to the slotted opening 1a in the grip portion 1 and contiguous therewith. A hole 4 is optionally provided on a side of the grip portion 1 opposite to the slotted opening 1a to provide a convenient manner of attachment of handles 10 to elastic portion 20, as will be described in further detail below.
As an additional option, a grip length adjustment mechanism is provided to allow selective adjustment of a length of grip portion 1, conveniently comprising a screw portion 5 that is threadably engageable with corresponding threads provided at an end region of bore 1b. As can be seen from the illustrated example of the figures, the un-slotted side of grip portion 1 is advantageously, though not necessarily longer than the slotted side to facilitate gripping in a hand of a user, as can be best seen in
As shown in schematic representation in
When the apparatus is used for aerobic exercise, the elastic portion 20 is generally in a first orientation relative to each of the handles 10, in which the extended direction of the elastic portion 20 is codirectional with the handle grip axis L, as shown in
Turning now to
As mentioned previously, slotted opening 1a provided in the grip portion 1 is narrower than a width of the elastic portion 20 when in an un-stretched state, such that the elastic portion 20 is captively held within the coaxial bore 1b for jump rope activity in the first orientation (See
Also, as described above, in accordance with a particularly advantageous embodiment, the handles 10 each further includes extension portion 3 arranged crosswise to the grip portion 1, which also includes bore 3b communicative with the coaxial bore 1b running crosswise thereto, and the other slotted opening 3a of like or similar width to the slotted opening 1b in the grip portion 1 and contiguous therewith. Such configuration allows the elastic portion 20 to be moved between the first and second orientation simply by maintaining a stretched state of the elastic portion 20 which sufficiently reduces the width of the elastic portion 20 to allow manually directed transfer of the elastic portion 20 to and from each of the bore 1b (first orientation shown in
It is noted that the optional portions and feature mentioned can be omitted and replaced with simpler structure without departure from the invention. For example, extension portion 3 can be omitted entirely, and replaced with a hole in a location along grip portion 1 coinciding with that of bore 3b. Similarly, while the manner of attachment of handle 10 to elastic portion 20 is achieved conveniently by knot 6 at an end of elastic portion 20 strung through a hole in grip portion 1, other structure for achieving mutual attachment may be used alternatively without departure from the invention. Moreover, in the event a knot is used, the position of hole 6 need not be as shown and described, and can be positioned in any other suitable location.
Another handle embodiment is depicted in
Functioning of the apparatus according to the alternative embodiment of
As in the previous embodiment, a pair of the handles 100 are carried on the elastic portion 120 in spaced apart locations therealong, and each of opposed ends of the elastic portion 20 is advantageously configured in a manner which prevents separation of the elastic portion 20 from the handles 10. Rather than being knotted on a side of a hole in the grip portion 101 through which the ends of the elastic portion 120 are passed, an anchoring mechanism is provided which is operable to selectively secure the elastic portion 120 at a selected position along a length thereof, and prevent movement of the elastic portion 120 relative to each handle 100.
As depicted, the anchoring mechanism conveniently comprises a locking arm 130 pivotably mounted to the handle 100, and movable between an open position in which it does not exert pressure on the elastic portion 120 arranged within a handle bore 101c (shown in
As shown in the figures, an engagement portion 130a of locking arm 130 is asymmetric about a pivot 131 to accomplish the anchoring function when the locking arm 130 is pivoted to the closed position, and optionally includes teeth 130b which contact and compress the elastic portion when rotated into the closed position of
While the anchoring mechanism can be used when the elastic portion 120 is oriented in a jump rope position extending through coaxial bore 101b, for example to make the size of the exercise apparatus customizable to users of different stature, the length adjustment capability of elastic portion 120 provided thereby is particularly useful also in allowing for the adjusting of tensioning force for varying a degree of resistance against elongation for different levels of resistance training accomplished by a shortening or lengthening of the segment portion of the elastic portion between the pair of handles 100. For example, a user can incrementally increase the resistance of a resistance training workout by progressively decreasing a distance between the handles (shortening of the elastic portion by use of the anchoring mechanism).
Referring now to
When a user desires a positioning more suited to resistance training or stretching, pivot arm 230 is moved in the direction of the arrow shown in
Use of this embodiment is analogous with that of the previously described embodiments, and therefore further description is omitted as being redundent.
A handle in accordance with the invention can be made from any suitable material, for example, wool, metal, plastic, plastic/rubber combinations, etc. without departure from the invention. ABS plastic was found to be one such acceptable material, but is not to be considered limiting to the contemplated scope of the invention.
As mentioned above, the elastic portion can be a conventional bungee cord, selected with a desired stretch limit and/or counterforce value. For example, for illustration purposes only, a suitable bungee cord was tested which was 8 mm in diameter and 3 meters long. Optimal elasticity, which is not to be considered limiting of the invention in any manner, and which is given simply for illustration purposes for the cord, was measured with stretch test, and the results were about 210% to about 247% elongation.
Having described preferred embodiments of the invention with reference to the accompanying drawings, it is to be understood that the invention is not limited to those precise embodiments, and that various changes and modifications may be effected therein by one skilled in the art without departing from the scope or spirit of the invention.
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