A stretching device for stretching and aligning a user's back may include a belt, optionally a gambrel and universal hook, and optionally a support system, such as a slotted door mount. The belt may be designed to wrap around the user's back and under the user's armpits, wherein the belt is a segmented belt having a plurality of raised segments spaced along a length of the belt. Rings may be attached to each end of the belt, wherein the rings may be designed to engage with a mounting device, such as the gambrel and universal hook.

An inversion table includes a supporting stand having a first interlocking member, and a tilt inversion mechanism. The tilt inversion mechanism includes an inversion unit pivoted on the supporting stand, a feet holding unit, and a locking unit having a second interlocking member disposed on the inversion unit. The tilt inversion mechanism is operable relative to the supporting stand such that the feet holding unit is disengaged from the locking unit in a non-reversible state, and that the feet holding unit is engaged with the locking unit in a reversible state.

In one embodiment, a kinetic shape is designed by determining an applied force to be applied to an object that is to incorporate the kinetic shape, determining a reactive force that is desired to be produced in response to the applied force, inputting the applied force and the reactive force into a kinetic shape equation, and solving the equation to obtain the kinetic shape.

An exercise device including a frame extending across a first plane, the frame defining vertical stabilization bars extending in a second plane, the frame further defining a horizontal cross bar connecting the vertical stabilization bars and configured for supporting a lower leg of a user. A swivel base couples to the frame for supporting a foot of the user. The swivel base may be fixed in a variety of positions as well as set to somewhat freely rotate while coupled to a bias spring.

An exercise apparatus for performing push-up type exercises includes an elongate planar surface with at least one transverse slot and a pair of handles movably carried in the transverse slot. The pair of handles are adapted for gripping by a user during performance of the push-up type exercise. The handles are interconnected by a resistance band for providing a selected resistance to resist a laterally outward displacement of the pair of handles during a push-up. A pair of adjustable legs support the apparatus in inclined orientation and a declined orientation, relative to a supporting ground surface. The legs may be attached by a pivot and are movable between a stowed position and an upright supporting position.

An exercise apparatus for performing push-up type exercises includes an elongate planar surface with at least one transverse slot and a pair of handles movably carried in the transverse slot. The pair of handles are adapted for gripping by a user during performance of the push-up type exercise. The handles are interconnected by a resistance band for providing a selected resistance to resist a laterally outward displacement of the pair of handles during a push-up. A pair of adjustable legs support the apparatus in inclined orientation and a declined orientation, relative to a supporting ground surface. The legs may be attached by a pivot and are movable between a stowed position and an upright supporting position.

In an exercising band and an exercising monitoring system having the exercising band, the exercising band includes a band part, at least one sensor part and a spacer. The band part is configured to be elongated according as an external force is applied. The sensor part is disposed inside of the band part, is configured to be elongated according as the band part is elongated, and has first and second sensors. The first and second sensors have conductivity. The spacer is configured to insulate the first and second sensors with each other. The first and second sensors are electrically contacted with each other, as the external force is applied along a direction substantially crossing an extending direction of the first and second sensors.

In an exercising band and an exercising monitoring system having the exercising band, the exercising band includes a band part, at least one sensor part and a spacer. The band part is configured to be elongated according as an external force is applied. The sensor part is disposed inside of the band part, is configured to be elongated according as the band part is elongated, and has first and second sensors. The first and second sensors have conductivity. The spacer is configured to insulate the first and second sensors with each other. The first and second sensors are electrically contacted with each other, as the external force is applied along a direction substantially crossing an extending direction of the first and second sensors.

An exercise apparatus for performing push-up type exercises includes an elongate planar surface with at least one transverse slot and a pair of handles movably carried in the transverse slot. The pair of handles are adapted for gripping by a user during performance of the push-up type exercise. The handles are interconnected by a resistance band for providing a selected resistance to resist a laterally outward displacement of the pair of handles during a push-up. A pair of adjustable legs support the apparatus in inclined orientation and a declined orientation, relative to a supporting ground surface. The legs may be attached by a pivot and are movable between a stowed position and an upright supporting position.

An exercise apparatus for performing push-up type exercises includes an elongate planar surface with at least one transverse slot and a pair of handles movably carried in the transverse slot. The pair of handles are adapted for gripping by a user during performance of the push-up type exercise. The handles are interconnected by a resistance band for providing a selected resistance to resist a laterally outward displacement of the pair of handles during a push-up. A pair of adjustable legs support the apparatus in inclined orientation and a declined orientation, relative to a supporting ground surface. The legs may be attached by a pivot and are movable between a stowed position and an upright supporting position.