A physical fitness device that simulates the motion of horseback riding. Innovative features of the present invention include a horseback riding simulation post which extends both vertically, at a vertical angle toward a rider seated on the device, and an upwardly extending longitudinal section which extends toward a rider on the exercise device seat and terminates in a transverse handle which enables the user to grasp the handle with both hands or one hand. There are a pair of parallel crank arms with a respective one of the crank arms adjacent opposite sides of the exercise device with each crank arm having an upwardly extending section extending forwardly or rearwardly.

An exercising apparatus for exercising at least one limb, having a supporting frame and at least one crank which is arranged on a rotation shaft assigned to the supporting frame, and having at least one limb support which can be fastened to the at least one crank at different radial distances from the rotation shaft. A detector is provided for detecting the radial distance of the at least one limb support from the rotation shaft. The invention further relates to a limb support and to a method for determining the force acting on a limb support of an exercising apparatus.

Disclosed herein are a freewheel adjustable wheel and a fitness bike therewith. The freewheel adjustable wheel according to the present disclosure comprises a rotation gear part being rotatably disposed outside a shaft, a spline gear rotating together with the rotation gear part, a fixation case which rotatably supports the rotation gear part and a rotation of which is restricted, a rotation case receiving power of the rotation gear part to rotate, a clutch bearing transferring power at a time when the rotation gear part rotates forward, a first gear part receiving power thought the clutch bearing, a driving part being fixed to the fixation case and providing rotational power, and a movement gear part operating in a non-freewheel mode where the movement gear part engages with the first gear part, and in a freewheel mode where the movement gear part is spaced from the first gear part.

A physical fitness device that simulates the motion of horseback riding. Innovative features of the present invention include a horseback riding simulation post which extends both vertically, at a vertical angle toward a rider seated on the device, and an upwardly extending longitudinal section which extends toward a rider on the exercise device seat and terminates in a transverse handle which enables the user to grasp the handle with both hands or one hand. There are a pair of parallel crank arms with a respective one of the crank arms adjacent opposite sides of the exercise device with each crank arm having an upwardly extending section extending forwardly or rearwardly.

An upright bike includes a main frame including a front portion and a rear portion. A rail structure is connected to the rear portion of the main frame. An X-shaped frame is slidably mounted to the rail structure and pivotally connected to the front portion of the main frame. A slide end is formed on the X-shaped frame and slidably mounted onto the rail structure. A stepping structure is mounted on a lower section of the first trestle of the X-shaped frame. A seat is secured on a top of the first trestle of the X-shaped frame. A handlebar is transversally secured on the X-shaped frame. A restitute element has two opposite ends respectively secured on the first trestle and the second trestle of the X-shaped frame for providing restitution force to the X-shaped frame when the handlebar is upwardly pulled.

An exercise device comprises a flywheel, a seat, a driving assembly, and a calculation module. The driving assembly drives the flywheel to rotate and comprises a driving wheel, a coupling member, and two cranks respectively connecting with a pedal. The coupling member connects the wheel and the flywheel. The user drives the wheel via the pedals. The calculation module performs a method to estimate a proper seat position and/or a crank length for the user.

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.

A fan bike providing magnetically controlled resistance, having a fan wheel and a micro adjustment assembly mounted on a bike frame; the fan wheel is rotationally mounted on the bike frame, and one side of which is given an iron ring and an aluminum ring. The micro adjustment assembly has a fixed seat inside the bike frame, a movable seat slidably mounted in the fixed seat, at least one magnet on the movable seat facing to the aluminum ring, an adjustment handle outside the bike frame, and a pulling wire connected between the movable seat and the adjustment handle. The magnetically controlled resistance provided by the fan bike is adjustable.

An upright bike includes a main frame including a front portion and a rear portion. A rail structure is connected to the rear portion of the main frame. An X-shaped frame is slidably mounted to the rail structure and pivotally connected to the front portion of the main frame. A slide end is formed on the X-shaped frame and slidably mounted onto the rail structure. A stepping structure is mounted on a lower section of the first trestle of the X-shaped frame. A seat is secured on a top of the first trestle of the X-shaped frame. A handlebar is transversally secured on the X-shaped frame. A restitute element has two opposite ends respectively secured on the first trestle and the second trestle of the X-shaped frame for providing restitution force to the X-shaped frame when the handlebar is upwardly pulled.

A physical fitness device that simulates the motion of horseback riding. Innovative features of the present invention include a horseback riding simulation post which extends both vertically, at a vertical angle toward a rider seated on the device, and an upwardly extending longitudinal section which extends toward a rider on the exercise device seat and terminates in a transverse handle which enables the user to grasp the handle with both hands or one hand. There are a pair of parallel crank arms with a respective one of the crank arms adjacent opposite sides of the exercise device with each crank arm having an upwardly extending section extending forwardly or rearwardly.