A variable stride exercise apparatus may provide a novel linkage assembly and corresponding exercise apparatus suitable for linking circular motion to relatively more complex, generally elliptical motion. Left and right cranks are rotatably mounted on a frame. A foot supporting linkage is movably connected between a rocker and the left and right cranks in such a manner that may provide a variable paths of motion controlled by a user of the apparatus.

A stepper exercise machine is provided. When a pedal is pedaled by a user, a drive gear is rotated forward or rearward. One end of a link is rotated about a drive rod, and a turning lever connected to the other end of the link is confined by a second accommodation trough of the pedal, so that the link brings the pedal to move in the up-down direction and the front-rear direction. In cooperation with a shaft which is fixed, a sleeve is rotatable relative to the shaft. When the pedal is driven, a first accommodation space provides a space for the pedal to move in the front-rear direction. By means of the action of two flywheels to provide an acceleration effect, the rotation of the drive gear is to speed up, so that the user can reduce the force exerted to the pedal.

An exercise device of the type including a frame with a first crank assembly rotatably coupled to the frame about a first axis and a second crank assembly rotatably coupled to the frame about a second axis. A control system may be used in communication with the first crank assembly and the second crank assembly, which may provide a synchronous movement of the first crank assembly relative to the second crank assembly. A pedal arm may be provided with a first end pivotally coupled to the first crank assembly and a pedal positioned on a second end. A crank link may be used with one end coupled to the second crank assembly and a second end coupled to the pedal arm. The crank link may be movable on the pedal arm which may provide varying paths of motion of the pedals.

The present disclosure relates to a multi-track exercise fitness apparatus, including a main frame, and a hypocycloid movement mechanism. The hypocycloid movement mechanism includes an internal gear, an external gear and a force applying member; the internal gear is fixedly connected to the main frame, the external gear internally is engaged with the internal gear, the force applying member is rotatably connected with the external gear, and the force applying member applies force to drive the external gear to roll in the internal gear, such that a movement track of the force applying member forms a hypocycloid. The multi-track exercise fitness apparatus can realize the combination of multiple exercise postures, so that the user can have a more comprehensive exercise effect and a more interesting exercise during fitness.

An exercise apparatus includes a pedal main part on which a user U in a sitting posture places his/her foot, a pedal support part configured to support the pedal main part so that the pedal main part is movable within a predetermined range along a foot-length direction, and a guiding mechanism configured to guide the pedal support part so that the pedal support part moves along a predetermined rotational trajectory in a cyclic manner. According to the above-described configuration, it is possible to prevent each of joints such as a hip joint, a knee joint, and an ankle joint from moving outside the range of movement of the joint. The exercise apparatus may also include a rubber tube that resists the movement of the pedal main part relative to the pedal support part.

An exercise device including a frame with a first crank assembly rotatably coupled to the frame about a first axis and a second crank assembly rotatably coupled to the frame about a second axis. A control system may be used in communication with the first crank assembly and the second crank assembly, which may provide a synchronous movement of the first crank assembly relative to the second crank assembly. A pedal arm may be provided with a first end pivotally coupled to the first crank assembly and a pedal positioned on a second end. A crank link may be used with one end coupled to the second crank assembly and a second end coupled to the pedal arm. The crank link may be movable on the pedal arm which may provide varying paths of motion of the pedals.

An elliptical exercise device includes a pedal assembly, the pedal assembly including at least one pedal member configured to receive a force exerted thereon by a user, the at least one pedal member configured to rotate in an elliptical pedal path when the force is exerted thereon; a drivetrain assembly operatively coupled to the pedal assembly; and a resistance assembly operatively coupled to the drivetrain assembly, the drivetrain assembly configured to transfer the motive power generated by the user from the pedal assembly to the resistance assembly, and the resistance assembly configured to provide a resistance force to oppose a rotational movement of one or more components of the resistance assembly. In some embodiments, the elliptical exercise device is configured to accommodate a user in a generally supine position.

An exercise apparatus having a pulley, a pair of stabilizing assemblies each configured to couple a front portion of a respective pedal element to each side of the pulley, a looped belt configured to couple the pulley to a resistance assembly, a tension stabilizer configured to maintain a tension of the looped belt on the pulley, and the resistance assembly configured to assert an adjustable resistance to the pedal elements through the looped belt. The exercise apparatus also comprises a transport mechanism with a handle for transporting the exercise apparatus.

An adaptive active training system includes a motion module, a sensing module and a control module. The motion module includes a training unit and a motor connected to the training unit. The motor is configured to bring the training unit to move along a motion trajectory. The sensing module is configured to sense a physiological signal of a user when the user uses the training unit. The control module is connected to the motion module and the sensing module. The control module is configured to calculate a position of the training unit on the motion trajectory, obtain a threshold value corresponding to the position based on a motion model, and determine whether a magnitude of the physiological signal is greater than the threshold value.

An exercise device of the type including a frame with a first crank assembly rotatably coupled to the frame about a first axis and a second crank assembly rotatably coupled to the frame about a second axis. A control system may be used in communication with the first crank assembly and the second crank assembly, which may provide a synchronous movement of the first crank assembly relative to the second crank assembly. A pedal arm may be provided with a first end pivotally coupled to the first crank assembly and a pedal positioned on a second end. A crank link may be used with one end coupled to the second crank assembly and a second end coupled to the pedal arm. The crank link may be movable on the pedal arm which may provide varying paths of motion of the pedals.