A power measurement device, which may be mounted to an inside area of a crank arm, includes processing circuitry within a housing. The processing circuitry is coupled with strain gauges mounted on the crank arm, and produces a power value that is wireless transmitted to a separate display that may receive and display power measurements. The housing may include a mounted portion and a cantilever portion where the mounted portion houses the processing circuitry and the cantilever portion houses batteries supply energy for the processing circuitry and other features.

The invention discloses an elasticity adjusting mechanism of an exercise equipment which includes a base, a staggered frame, an adjusting socket, an elastic body and force exerting member. The base and the staggered frame pivot with each other and constitute the main structure of the elasticity adjusting mechanism of the exercise equipment. The staggered frame extends outwardly from the base and includes an extended socket and a plurality of fixed portions, the fixed portions are disposed on the staggered frame and with different distances to the extended socket. When the adjusting socket is selectively assembled with one of the fixed portions at different positions, the elastic body passing through the extended socket and the adjusting socket changes its elasticity in accordance with extension amount.

An elastic structure of a sport equipment comprises a base, a staggered frame, an elastic body and an applying member. The base is supported on a ground. The elastic body is extendable and retractable located on the base. The applying member is connected to the elastic body for generating a stretching movement back and forth. The base and the staggered frame can be foldable, thus the elastic structure of the sport equipment has a smaller volume for collecting and saving.

The invention provides an apparatus, system and method for reducing the size of portable rotary motion exercise devices. Flexible materials in contact with the user or a piece of furniture is part of the connection between the user and the exercise device. Multiple wraps of a band around a shaft provide adjustable rotational resistance.

A bicycle trainer includes a body having two spaced positioning portions for supporting the wheel axle of a bicycle wheel, a damper unit for giving a damping resistance to the bicycle wheel, and a holding fixture mounted at the two positioning portions of the body for securing the bicycle wheel in a non-coaxial manner relative to the axial direction of the wheel axle. Thus, the invention can conveniently, rapidly and steadily secure the bicycle wheel in position.

An exercise machine comprises a resistance device and a power supplier. The resistance device provides a resistance and comprises an axle. The power supplier comprises one or more conducting rings arranged at a side or respectively arranged at a side of the resistance device. The conducting rings are coaxially coupled with the axle and are capable of rotating about the axle.

A fitness apparatus includes a support assembly having a framework selectively mounted to one of a ground surface, building structure, or fitness apparatus. A foot assembly is rotatably coupled to the support assembly and configured such that the foot assembly is displaced above a ground surface. The foot assembly includes a pair of retention members configured to selectively support the feet of a person in a toes-pointed downwardly position and above the ground surface. The fitness apparatus that increases core muscle group activation by making traditional exercises more challenging. It is designed to have the user place their feet in a platform which then allows for three axis of rotation. Height adjustment gives the user more resistance. The largest benefit is that the user can perform these exercises without having to stop to re-adjust their feet.

A system comprising structures connected to the rider of human-powered vehicles improves the force a rider may apply to the vehicle. The elements are primarily connected to the lower body and legs of the rider, with attachment to the rider's shoes, whereby a two-dimensional four-bar linkage is formed. Use of the system may permit a rider to go faster or farther with less effort. An optional novel shoe may be used with or without the other elements of the system.

An apparatus permitting a user to perform a simulated bicycling exercise is provided. The apparatus includes a frame having a head tube, a first upper rear mounting point and a second lower front mounting point configured to maintain the frame, the first upper rear mounting point comprising an upper rear movable rotating joint, a seat connected to said frame and configured to support the user in a forward facing orientation, a wheel positioned in association with said frame, a set of pedals configured to interact with said wheel, and a stem connected to a handlebar arrangement, the stem passing through the head tube and connected to a base by a connection arrangement. The frame is configured to pivot about the first upper rear mounting point and second lower front mounting point in response to leaning by the user, causing rotation of the stem within the head tube.

An exercise bike according to the present disclosure comprises a base part being placed on an installation surface, a support frame part having a lower portion that is fixed to the base part and an upper portion that extends to an upper side of the base part and supports a handle and a seat, a disc part connecting to a rotation support shaft that passes through the support frame part, a pedal being detachably disposed at the disc part, a resistance adjusting part receiving a rotation of the disc part through a belt member, being supported by the support frame part and adjusting resistance at a time when the pedal is rotated by magnetic force, and a housing part being disposed at the upper side of the base part in a state.