Aquatic exercise bicycle
An aquatic exercise cycle including a frame receptive to be at least partially submersed in a liquid medium; a seat adjustably secured to the frame; a pair of handles operably coupled to at least one of the frame and the seat for an operator to hold onto; a crank assembly operably coupled to said frame having an input shaft rotatable with a pair of user operated pedals; and a variable resistance mechanism in operable communication with the input shaft and receptive to varying a resistance of rotation of the input shaft. The aquatic exercise cycle allows the user to adjust at least the seat relative to the crank assembly to select either an upright riding position or a recumbent riding position.
This application claims the benefit of United States Provisional Application No. 60/489,946, filed Jul. 22, 2003 the contents of which are incorporated by reference herein in their entirety.
BACKGROUND OF THE INVENTIONThe invention relates generally to exercise equipment and in particular to an aquatic exercise bicycle for providing exercise in a liquid medium. More particularly, the invention relates to an aquatic exercise bicycle that may be adjusted and ridden in a recumbent or upright bicycle configurations.
The benefits of aerobic exercise and particularly jogging are well known. Jogging is not suggested for persons who are prone to back, knee, and foot problems because the inherent impact of the feet on the ground surface is often the cause of peripheral vascular insufficiency or injury to the legs, ankles, and back. Invalids, osteoarthritic, and postoperative patients are given alternative forms of exercise such as swimming, which does not necessarily exercise the muscles which come into play in running or jogging.
Aquatic exercise, and jogging apparatus are known in the art. There are several patents which disclose devices which are used for exercising in water, and jogging devices used out of water (i.e., treadmills). For example, one device for exercising in water includes U.S. Pat. No. 5,665,039 to Wasserman et al., which disclose an upright exercycle fixedly attached to a walkway of the pool. However, this design is limited to adjustment of the seat relative to the fixed crank and directed toward exercising in an upright position only. This design does not allow an operator to pedal the exercycle in a supine position as in a recumbent bicycle configuration. The advantage of a stationary recumbent bicycle as opposed to a stationary upright bicycle is that the user is positioned in a sitting position with the legs extending forwardly which reduces strain and stress on the spine and back muscles.
Current exercise bicycles can be classified into three categories; (1) common bicycle held stationary while applying resistance to the rear wheel, (2) sitting exercise bicycles, and (3) semi-recumbent exercise bicycles. Units of the bicycle type are typically used by persons who want to simulate outdoor cycling for training purposes. With this form of exercise bicycle the weight of a user may be supported by both a handlebar and a seat. The sitting type refers to exercise bicycles where the user's weight is substantially supported by a seat and the crank and pedals are positioned below and shortly forward of the user. The semi-recumbent type refers to exercise bicycles where the user's weight is substantially supported by a seat and possibly a seat back. The crank and pedals are positioned substantially forward of the user on a substantially equal level with the seat.
Each type of exercise exercises somewhat different muscle groups. The different configurations of exercise bicycles also provide differing levels of comfort for each user. For example, the classical position of a machine of the bicycle type provides the realistic body position and motion that are essential for accurate simulation of outdoor cycling. The classical position, however, may require a significant portion of the user's weight to be supported by the arms and upper body of the user. Such a position may be uncomfortable for an elderly user.
Accordingly, it would be an advancement in the field to provide an exercise bicycle on which a user is able to accurately simulate the classical cycling position, while also allowing for an alternate semi-recumbent position. Such a bicycle would increase the range of users of differing abilities that may efficiently exercise with a single bicycle. Additionally, such a bicycle usable in a liquid medium, such as a swimming pool, would provide a variety of workouts for a user, thus, promoting interest and provide a method for exercising different muscle groups, while limiting harmful impact on the user because of buoyancy provided by the liquid medium. Furthermore, there is a desire for such an aquatic exercise bicycle to be easily disposed and positioned within the liquid medium, while remaining stable during operation.
BRIEF SUMMARY OF THE INVENTIONThe above discussed and other drawbacks and deficiencies are overcome or alleviated by an aquatic exercise cycle that includes a frame receptive to be at least partially submersed in a liquid medium; a seat adjustably secured to the frame; a pair of handles operably coupled to at least one of the frame and the seat for an operator to hold onto; a crank assembly operably coupled to said frame having an input shaft rotatable with a pair of user operated pedals; and a variable resistance mechanism in operable communication with the input shaft and receptive to varying a resistance of rotation of the input shaft. The aquatic exercise cycle allows the user to adjust at least the seat relative to the crank assembly to select either an upright riding position or a recumbent riding position. In an exemplary embodiment, the seat and the crank assembly are adjustable relative to the frame to select either an upright riding position or a recumbent riding position.
The above-discussed and other features and advantages of the present invention will be appreciated and understood by those skilled in the art from the following detailed description and drawings.
BRIEF DESCRIPTION OF THE DRAWINGSReferring to the exemplary drawings wherein like elements are numbered alike in the several FIGURES:
Seat 14 is mounted on seat post 24 that rides in a slot 26 configured in a track 28 depending from frame 12. A knob having a threaded fastener generally shown at 27 secures the post 24 in a fixed location relative to track 28. Tilt of the seat 14 may be adjusted using a same knob or a separate further knob. In
Although track 28 is shown and described as depending from frame 12, it will be recognized that track 28 having a slot 26 may be configured in frame 12. In either case, slot 26 provides infinite adjustment for translation of seat 14 via seat post 24 substantially parallel with frame 12 within the bounds of slot 26. Alternatively, it is also contemplated that slot 26 may be substituted with a plurality of discrete slots or apertures 26 along a length of track 28 or frame 12 providing discrete adjustability for seat 14 via seat post 24. In this manner, seat 14 may be translated relative to frame 12 and crank assembly 20 to select either an upright or a recumbent riding position depending on the relative location of seat 14 with respect to crank assembly 20.
In an exemplary embodiment, crank assembly 20 is secured to frame 12 through two supports 30 and 32. Support 30 is pivotally connected to frame 12 and to a housing 31 of the crank assembly 20. Support 32 is pivotally connected to housing 31 of crank assembly 20 at one end. The other end of support 32 rides in a slot 34 configured in a track 36 depending from frame 12 forward of track 28. A knob having a threaded fastener generally shown at 38 secures support 32 relative to track 36. In
Although track 36 is shown and described as depending from frame 12, it will be recognized that track 36 having a slot 34 may be configured in frame 12. In either case, slot 34 provides infinite adjustment for translation of one end of support 32 substantially parallel with frame 12 within the bounds of slot 34. Alternatively, it is also contemplated that slot 34 may be substituted with a plurality of discrete slots or apertures 34 along a length of track 36 or frame 12 providing discrete adjustability for support 32. In this manner, crank assembly 20 may be positioned relative to frame 12 and crank assembly 20 to select either an upright or a recumbent riding position depending on the relative location of seat 14 with respect to crank assembly 20.
It will be recognized by one skilled in the pertinent art that although a pin and slot arrangement have been described with reference to translation of one end of support 32 and seat 14 via seat post 24, any suitable connection is contemplated that allows such translation or positioning of seat 14 relative crank assembly 20. For example, crank assembly 20 may be supported via a single support 32 absent support 30. In this example, crank assembly 20 is pivotally attached to frame 12 at a first location and a second location. The crank assembly is attached to the first location using support 32 having a first end pivotally extending from the crank assembly 20 and an opposite second end realeasably coupled along a length of frame 12 at the first location depending on a selected riding position. Here the second location may include one end of housing 31 pivotally attached to frame 12 allowing use of a single support 32 to pivotally translate input shaft generally shown at 50 in
Shown in
Although numerous variable resistance mechanisms have been described with reference to
One of the advantages obtained by using above described aquatic exercise cycle is discussed below. Amateur tri-athletes, like professionals will train from about 15 hours per week up to about 30 hours per week in an effort to maximize their performance in each of the three triathlon disciplines: swimming, cycling, and running. Three of the key factors that comprise a successful training program for this type of event are the hours of quality effort invested, the maximum recovery benefit obtained between training sessions, and remaining injury-free during the training program.
One alternative course of training which can achieve all three of the above includes cross-training with aquatic exercise equipment, including the above described aquatic exercise cycle. For instance, using a high quality, non-motorized aquatic treadmill and an aquatic exercise cycle in a small pool with a tethered or mechanical swim resistance device will greatly reduce the amount of time required to produce the same benefit from land-based training.
Very few athletes are able to devote equal training time to each discipline because they are stronger in one or two than the third, and need to devote additional time to that third or weaker area. However, devoting additional time to the weaker discipline takes valuable hours away from the other disciplines, which can then suffer.
One solution includes aquatic training because training in water produces 12 times more resistance than training in air(i.e., on land) and the time required to achieve equal benefit is greatly reduced. Simultaneously, the buoyancy obtained by training in water greatly reduces stress and impact on joints, bones, and muscles. This benefit not only reduces the likelihood of injury, but also reduces the recovery time required between training sessions. In addition, subsequent training sessions are of higher quality because the lingering fatigue factor and discomfort level caused by previous sessions is greatly reduced.
Thus, using the above described aquatic exercise cycle in a liquid medium that allows selection between a classical upright and recumbent riding position can aid in triathlon training, at least with respect to training for a bicycling aspect thereof.
While this invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed as the best mode contemplated for carrying out this invention.
Claims
1. An aquatic exercise cycle comprising:
- a frame receptive to be at least partially submersed in a liquid medium;
- a seat adjustably secured to said frame;
- a pair of handles operably coupled to at least one of said frame and said seat for an operator to hold onto;
- a crank assembly operably coupled to said frame, said crank assembly having an input shaft rotatable with a pair of user operated pedals; and
- a variable resistance mechanism in operable communication with said input shaft, said variable resistance mechanism receptive to varying a resistance of rotation of said input shaft,
- wherein at least said seat is adjustable relative to said crank assembly to select either an upright riding position or a recumbent riding position.
2. The aquatic exercise cycle of claim 1, wherein said seat and said crank assembly are adjustable relative to said frame to select either an upright riding position or a recumbent riding position.
3. The aquatic exercise cycle of claim 1, wherein said seat is receptive to translation substantially parallel with a portion defining a length of said frame and substantially normal to said frame.
4. The aquatic exercise cycle of claim 3, wherein said seat depends from a height adjustable seat post, said seat post selectively coupled along a length defining said frame depending on a selected riding position.
5. The aquatic exercise cycle of claim 3, wherein said crank assembly is pivotally attached to said frame at a first location and a second location, said crank assembly is attached to said first location using a first support having a first end pivotally extending from said crank assembly and an opposite second end realeasably coupled along a length of said frame at said first location depending on a selected riding position.
6. The aquatic exercise cycle of claim 5, wherein said second end of said first support is translatable within a first slot extending along a length of said frame and is realeasably secured therealong.
7. The aquatic exercise cycle of claim 6, wherein said crank assembly is pivotally attached to said frame at said second location using a second support having a first end pivotally extending from said crank assembly and an opposite second end pivotally coupled to said frame at said second location.
8. The aquatic exercise cycle of claim 6, wherein said seat depends from a height adjustable seat post, said seat post selectively coupled along a length of said frame depending on a selected riding position.
9. The aquatic exercise cycle of claim 8, wherein said seat post is translatable within a second slot aft of said first slot extending along a length of said frame and is realeasably secured therealong.
10. The aquatic exercise cycle of claim 9, wherein said second end of said first support and said seat post are fixedly secured with respect to translation within said first and second slots, respectively, using corresponding mechanical fasteners to prevent further translation therein.
11. The aquatic exercise cycle of claim 1, wherein said a variable resistance mechanism is incorporated with said crank assembly.
12. The aquatic exercise cycle of claim 1, wherein said pair of handles operably coupled to at least one of said frame and said seat for an operator to hold onto include a first pair of handles operably coupled to said frame for said upright position and a second pair of handles operably coupled to said seat for said recumbent position.
13. The aquatic exercise cycle of claim 12, wherein said second pair of handles are receptive to being moved out of the way for operation in said upright position.
14. The aquatic exercise cycle of claim 1, wherein said frame is a single tube frame configured in an arch with feet depending from opposing ends defining said frame to stabilize said frame in said liquid medium.
15. The aquatic exercise cycle of claim 1, wherein said variable resistance mechanism includes a first gear in operable communication with a second gear operably coupled to an output shaft, said first gear having first teeth engaged with second teeth of said second gear in said liquid medium, wherein said variable resistance mechanism is receptive to varying a resistance of rotation of said output shaft to vary a resistance of rotation of said input shaft.
16. The aquatic exercise cycle of claim 15, wherein said variable resistance mechanism includes first and second gears rotatably fixed within a liquid filled chamber, said chamber including an inlet intermediate axes of rotation of said first and second gears and an outlet opposite said inlet intermediate axes of rotation of said first and second gears, said liquid filled chamber includes said liquid medium in which the exercise bicycle is immersed.
17. The aquatic exercise cycle of claim 16, wherein rotation of said first and second gears pumps liquid into said chamber through said inlet and exit said chamber through said outlet.
18. The aquatic exercise cycle of claim 17, wherein said outlet includes an adjustable restrictor plate, said restrictor plate is receptive to moving into and out of said outlet varying a resistance of rotation of said first and second gears.
19. The aquatic exercise cycle of claim 1, wherein said variable resistance mechanism includes first and second gears rotatably fixed within a self contained liquid filled chamber, said chamber being a closed fluid system having suitably configured reservoirs to vary the resistance of liquid pumped by first teeth and second teeth of said first and second gears, respectively.
20. The aquatic exercise cycle of claim 17, wherein said first gear is operably coupled to said input shaft.
21. The aquatic exercise cycle of claim 16, wherein said variable resistance mechanism includes said output shaft variably geared with respect to said input shaft such that adjustment of a relative speed of said output shaft relative to said input shaft varies a resistance of rotation of said input shaft dependent on a change of relative speeds of said output and input shafts.
22. The aquatic exercise cycle of claim 1, wherein said liquid medium includes a swimming pool in which at least a substantial portion of the exercise cycle is immersed in water when in operation.
Type: Application
Filed: Jul 22, 2004
Publication Date: Apr 7, 2005
Inventor: Robert Adley (Canton, CT)
Application Number: 10/898,095