A bi-directional exercise machine has a work arm, first and second cams coupled to the work arm, a resistance mechanism, and a pulley assembly that couples the resistance mechanism to the work arm via the first and second cams so that movement of the work arm is resisted by the resistance mechanism according to first and second resistance profiles provided by the first and second cams, respectfully. A primary pulley cable has a first end coupled to the first cam and a second end coupled to the second cam. When the work arm is in a rest position, the ends of the primary pulley cable extend from cable tracks of the cams, respectively, at a tangent so that the resistance mechanism applies a resistance force on the work arm via the pulley assembly immediately upon movement of the work arm out of the rest position.

An exercise apparatus with an adjustable rotating element around which a force transferring material wraps either clockwise or counterclockwise to provide bidirectional rotational resistance for exercising. The force transferring material is preferably guided to remain in close proximity to the rotating element while wrapping around the rotating element.

An exemplary exercise device includes, among other things, an attachment structure configured to be mounted to a support assembly, a first arm directly pivotably connected to the attachment structure, a second arm directly pivotably connected to the attachment structure, a bracket directly pivotably connected to the first arm and directly pivotably connected to the second arm, and a catch member configured for accepting a weight bar. The catch member is pivotably connected to at least one of the first arm, the second arm, or the at least one bracket such that the at least one catch member is pivotable relative to the at least one bracket.

An exemplary exercise device includes, among other things, an attachment structure configured to be mounted to a support assembly, a first arm directly pivotably connected to the attachment structure, a second arm directly pivotably connected to the attachment structure, a bracket directly pivotably connected to the first arm and directly pivotably connected to the second arm, and a catch member configured for accepting a weight bar. The catch member is pivotably connected to at least one of the first arm, the second arm, or the at least one bracket such that the at least one catch member is pivotable relative to the at least one bracket.

The fitness display apparatus comprises an outer housing provided on guide rails (1) and capable of moving under the limit of the guide rails (1); a display screen (14) is provided on the outer housing, the outer housing is internally provided with a generator (11), a PCB (12), a tension sensor (9) and a rechargeable battery (10), the PCB (12) is provided with a charging circuit and a control chip; the generator (11) is connected to the rechargeable battery (10) by means of the charging circuit; a rotor of the generator (11) is in contact with the guide rails (1), and when the outer housing moves, the rotor of the generator (11) rotates; the rechargeable battery (10) is electrically connected to the PCB (12); the tension sensor (9) and the display screen (14) are respectively electrically connected to the PCB (12); and the tension sensor (9) is provided between an external device and a load bearing rod (3). By providing a display unit, exercise data can be intuitively displayed; obtained data can be sent to a mobile device or a cloud by means of a wireless module, and an exercise process is accurately described in combination with a suitable APP and other software, laying a foundation for datamation of training processes and training effects.

The fitness display apparatus comprises an outer housing provided on guide rails (1) and capable of moving under the limit of the guide rails (1); a display screen (14) is provided on the outer housing, the outer housing is internally provided with a generator (11), a PCB (12), a tension sensor (9) and a rechargeable battery (10), the PCB (12) is provided with a charging circuit and a control chip; the generator (11) is connected to the rechargeable battery (10) by means of the charging circuit; a rotor of the generator (11) is in contact with the guide rails (1), and when the outer housing moves, the rotor of the generator (11) rotates; the rechargeable battery (10) is electrically connected to the PCB (12); the tension sensor (9) and the display screen (14) are respectively electrically connected to the PCB (12); and the tension sensor (9) is provided between an external device and a load bearing rod (3). By providing a display unit, exercise data can be intuitively displayed; obtained data can be sent to a mobile device or a cloud by means of a wireless module, and an exercise process is accurately described in combination with a suitable APP and other software, laying a foundation for datamation of training processes and training effects.

An exercise rack pulley system for providing a wide range of versatile arrangements of pulleys on an exercise rack. An example embodiment generally includes an exercise rack including one or more support members and arm members. One or more pulley units may be attached to one or more support members and/or arm members of the exercise rack. Each of the pulley units includes a bracket for attaching to the exercise rack and a frame for supporting a rotatable pulley. The frame is adjustably connected with the bracket such that each pulley unit may be adjusted between at least two positions, including a first position in which the frame is parallel with the bracket and a second position in which the frame is perpendicular with the bracket. A cable is routed through the pulley units and connected to a weight to accommodate a wide range of different types of exercises.

An exercise rack pulley system for providing a wide range of versatile arrangements of pulleys on an exercise rack. An example embodiment generally includes an exercise rack including one or more support members and arm members. One or more pulley units may be attached to one or more support members and/or arm members of the exercise rack. Each of the pulley units includes a bracket for attaching to the exercise rack and a frame for supporting a rotatable pulley. The frame is adjustably connected with the bracket such that each pulley unit may be adjusted between at least two positions, including a first position in which the frame is parallel with the bracket and a second position in which the frame is perpendicular with the bracket. A cable is routed through the pulley units and connected to a weight to accommodate a wide range of different types of exercises.

The present invention relates to an exercise method and an exercise device for performing an exercise suitable for thigh and hip muscles like fitness equipment or an exercise bicycle, and more particularly, to an exercise method and an exercise device for strengthening thigh and hip muscles by performing a movement of lowering legs and then moving the legs backward or putting the legs together or apart from a position of pulling the legs toward a chest of the user with an arm disposed between the legs in a sitting or lying position of the user. In addition, the present invention relates to a leg exercise device including a trajectory measuring device of generating motion range information of the exercise device and making the motion range information as data through a motion range measurement sensor attached to a knee and a hip joint of the user seated on the exercise device, smart device and an application of the smart device.

A weightlifting machine that includes a pulley system and a cable system that attaches to a weight rack frame to allow a user to perform a weightlifting exercise. The pulley system may include a first pulley and a second pulley where the cable system engages each pulley. The cable system may have a first end connected to a grip attachment and a second end attached to a resistance element. The resistance element may include a resistance band, a weight support that holds a weight plate, a set of weight plates, or other type of resistance element. The cable system may extend from the pulley through an opening located one of the frame members that form the frame.