An exercise machine includes a cable. It further includes an interface to a moveable camera device coupled with the exercise machine. It further includes a processor configured to receive a cable-based measurement associated with an exercise performed by a user. The processor is further configured to receive, from the moveable camera device, video information associated with the exercise. The processor is further configured to provide a workout determination based at least in part on both the cable-based measurement and the video information received from the moveable camera device.

A blade resistance adjustment structure and an exercise machine having the same are disclosed. The blade resistance adjustment structure includes a rotating shaft, a blade seat, a plurality of blades, a sliding seat, and a plurality of connecting members. Through an adjustment force, the radius of rotation changes along with an opening and closing angle, thereby changing the magnitude of rotational resistance.

A blade resistance adjustment structure and an exercise machine having the same are disclosed. The blade resistance adjustment structure includes a rotating shaft, a blade seat, a plurality of blades, a sliding seat, and a plurality of connecting members. Through an adjustment force, the radius of rotation changes along with an opening and closing angle, thereby changing the magnitude of rotational resistance.

A method for adjusting a blade resistance includes the steps of providing an external force to drive a plurality of blades to be rotated synchronously in a fluid to obtain a rotational resistance; providing an adjustment force to change a radius of rotation of the blades along with an opening and closing angle, thereby changing the magnitude of the rotational resistance. Thereby, the degree of opening and closing of the blades is adjustable, and the rotational resistance is steplessly adjusted.

A rowing exercise machine includes a first frame member and a second frame member that are pivotally connected to each other to have a use position and a storage position. The rowing exercise machine may include a resistance device connected to the first frame member and a seat that is slidably engaged with the second frame member. A locking assembly may be used to fixedly secure the first frame member and the second frame member when the rowing exercise machine is in the use position.

In one aspect, a motion control system includes an actuator having an actuation member, the actuation member having a proximal end attached to the actuator on a first side of a joint and a distal end attached to an anchor element attachment point on a second side of the joint. A first sensor is configured to output signals defining a gait cycle and a second sensor is configured to output signals representing a tensile force in the at least one actuation member. A controller receives the output signals from the first and second sensors and, responsive thereto, automatically actuates the actuator, during a first portion of the gait cycle, to apply a force greater than a predetermined threshold tensile force to the anchor element attachment point via the actuation member to generate a beneficial moment about the joint and to automatically actuate the actuator, during at least a second portion of the gait cycle, to reduce a tensile force at the anchor element attachment point to a level at or below the predetermined threshold tensile force to avoid generating a detrimental moment about the joint.

A system and method for generating cryptocurrency coins based on physical exercise is provided. The system includes a hydraulic resistance control valve coupled to an actuator, which regulates bidirectional oil flow to establish a variable resistance load corresponding to the user's effort. An exercise attachment is mechanically coupled to the actuator, enabling a user to perform exercises. An electronic control unit equipped with pressure transducers and accelerometer sensors captures hydraulic pressure, resistance settings, and motion data, generating digital exercise data. A processor calculates power output in watts from the exercise data, converts the power output into exercise tokens according to a watt-to-token conversion algorithm, and transmits the tokens to a blockchain exchange interface. The blockchain exchange interface converts the tokens into cryptocurrency coins deposited into a user's cryptocurrency wallet. In some embodiments, the system further stores electrical energy in lithium-ion batteries and mints non-fungible tokens (NFTs) associated with performance milestones.

A system and method for generating cryptocurrency coins based on physical exercise is provided. The system includes a hydraulic resistance control valve coupled to an actuator, which regulates bidirectional oil flow to establish a variable resistance load corresponding to the user's effort. An exercise attachment is mechanically coupled to the actuator, enabling a user to perform exercises. An electronic control unit equipped with pressure transducers and accelerometer sensors captures hydraulic pressure, resistance settings, and motion data, generating digital exercise data. A processor calculates power output in watts from the exercise data, converts the power output into exercise tokens according to a watt-to-token conversion algorithm, and transmits the tokens to a blockchain exchange interface. The blockchain exchange interface converts the tokens into cryptocurrency coins deposited into a user's cryptocurrency wallet. In some embodiments, the system further stores electrical energy in lithium-ion batteries and mints non-fungible tokens (NFTs) associated with performance milestones.

Shoulder strengthening systems can provide multidirectional and dynamic resistance to shoulder movement of a user. A shoulder strengthening system can include a frame, a joint pivotably coupled to the frame, a resistance mechanism coupled to the joint, and a shaft coupled to the joint. Resistance mechanisms can include a first hydraulic member and a second hydraulic member. The first hydraulic member can be configured to restrict relative motion of the joint about a first axis and the second hydraulic member can be configured to restrict relative motion of the joint about a second axis. The shaft and the joint of a shoulder strengthening system can be configured to move together relative to the frame about the first and second axes.

Shoulder strengthening systems can provide multidirectional and dynamic resistance to shoulder movement of a user. A shoulder strengthening system can include a frame, a joint pivotably coupled to the frame, a resistance mechanism coupled to the joint, and a shaft coupled to the joint. Resistance mechanisms can include a first hydraulic member and a second hydraulic member. The first hydraulic member can be configured to restrict relative motion of the joint about a first axis and the second hydraulic member can be configured to restrict relative motion of the joint about a second axis. The shaft and the joint of a shoulder strengthening system can be configured to move together relative to the frame about the first and second axes.