An abdominal exercise device with a stable rolling platform, a pair of handles, and four roller assemblies. In addition to conventional roller exercises, the user may place toes or feet on the stable platform and push or pull the device. The device has attachment features on the handle and platform that permit one or more adjustable elastic cords to be temporarily attached to the exercise device while the device is pushed or pulled relative to the user's body. Variable resistance cords are provided which have a plurality of stop elements to permit the user to adjust the effective resistance of the elastic cords by temporarily securing selected stop elements to the device. In one example, the stop elements have internal tapered plugs and external tapered covers over the tapered plugs; so that the stop elements may nest in tapered receptacles on the device.

An exercise machine is disclosed. The exercise machine comprises a tension generating device. The exercise machine comprises a translatable arm mount coupled to the tension generating device. The exercise machine comprises an arm coupled to the translatable arm mount. The exercise machine comprises a cable coupled to the tension generating device via the arm.

An exercise machine is disclosed. The exercise machine comprises a tension generating device. The exercise machine comprises a translatable arm mount coupled to the tension generating device. The exercise machine comprises an arm coupled to the translatable arm mount. The exercise machine comprises a cable coupled to the tension generating device via the arm.

A seated exercise system is provided having a pair of sliders devices, each slider device including a body portion having a continuous side wall and a support surface. The support surface is sized and shaped to receive a foot of a user. A floor portion configured to slide on a floor surface during operation is provided. A grip portion is attached to the support surface, wherein the grip portion is constructed from a traction material providing traction to the foot during operation. Motion tracking components configured to detect movement data of the foot and during operation are provided. At least one slider of the pair of floor sliders is configured to communicate the detected movement data to the other slider; and, wherein at least one slider of the pair of floor sliders includes a wireless communication device configured to send the detected movement data a computerized device such that the detected movement data is available to the user.

A seated exercise system is provided having a pair of sliders devices, each slider device including a body portion having a continuous side wall and a support surface. The support surface is sized and shaped to receive a foot of a user. A floor portion configured to slide on a floor surface during operation is provided. A grip portion is attached to the support surface, wherein the grip portion is constructed from a traction material providing traction to the foot during operation. Motion tracking components configured to detect movement data of the foot and during operation are provided. At least one slider of the pair of floor sliders is configured to communicate the detected movement data to the other slider; and, wherein at least one slider of the pair of floor sliders includes a wireless communication device configured to send the detected movement data a computerized device such that the detected movement data is available to the user.

A power measurement apparatus for an exercise machine may include an optical sensing component and a pair of code wheels supported by the frame of the exercise machine. The pair of code wheels may include a first code wheel having a plurality of first windows and a second code wheel having a plurality of second windows that individually at least partially overlap respective ones of the first windows to define respective effective window, the width of which may vary responsive to the application of power via at least one moment-producing assembly. The optical sensing component is operatively associated with the pair of code wheels to detect variations in the width of the effective window and thus measure the power applied via the moment-producing assembly.

A power measurement apparatus for an exercise machine may include an optical sensing component and a pair of code wheels supported by the frame of the exercise machine. The pair of code wheels may include a first code wheel having a plurality of first windows and a second code wheel having a plurality of second windows that individually at least partially overlap respective ones of the first windows to define respective effective window, the width of which may vary responsive to the application of power via at least one moment-producing assembly. The optical sensing component is operatively associated with the pair of code wheels to detect variations in the width of the effective window and thus measure the power applied via the moment-producing assembly.

A stroller handle adaptor having a first handle assembly rotationally coupled to the first end of a shaft having a shaft axis, the first handle assembly further comprising a first cylindrical housing having a first axis with a first handle protruding tangentially therefrom, wherein the first handle rotates about the first axis and the first axis is offset from the shaft axis, a second handle assembly rotationally coupled to the second end of the shaft, the second handle assembly further comprising a second cylindrical housing having a second axis with a second handle protruding tangentially therefrom, wherein the second handle rotates about the second axis and the second axis is offset from the shaft axis, wherein the stroller handles assembly is adapted to couple to an existing stroller handle.

A stroller handle adaptor having a first handle assembly rotationally coupled to the first end of a shaft having a shaft axis, the first handle assembly further comprising a first cylindrical housing having a first axis with a first handle protruding tangentially therefrom, wherein the first handle rotates about the first axis and the first axis is offset from the shaft axis, a second handle assembly rotationally coupled to the second end of the shaft, the second handle assembly further comprising a second cylindrical housing having a second axis with a second handle protruding tangentially therefrom, wherein the second handle rotates about the second axis and the second axis is offset from the shaft axis, wherein the stroller handles assembly is adapted to couple to an existing stroller handle.

An exercise machine for performing triceps press exercises, including a moving user support that supports a user in a seated position. The exercise machine includes a linkage assembly that allows the moving user support to tilt as the user performs the triceps press exercise. As the user extends his or her arms from an exercise starting position to an exercise ending position, a user support frameand thus the user's torsoreclines progressively backwards. The user's natural reaction to this reclining sensation is to bring his or her head forward, which encourages the user to plant his or her lower back firmly into a stable position against a back pad and in turn reduces a risk of injury associated with excessively arching of the lower back.