Sensor data is collected from a sensor monitoring a tension generating device of an exercise machine. The sensor data is analyzed to determine whether the sensor data is within a specification. In the event the sensor data is not within a specification, an error stop mode is entered for the tension generating device.

An explosive strength training device is provided. The explosive strength training device includes a cable set, a power box, a resistance motor and a controller. The cable set includes a rubber belt and a movable pulley block connected with one end of the rubber belt, the movable pulley block has a first main pulley disposed opposite to the rubber belt, and allows the pulling force of the rubber belt to pass through the center of the first main pulley. Through the labor-saving structure of the first main pulley, the middle section of the power belt is wound on the upper side of the first main pulley and fixedly sleeved on the positioning rod with the fixed side to form a fulcrum.

A mobile exercise device configured to enhance virtual reality experiences is provided. The system generally comprises a harness, top supports, bottom-carrying arms, resistance elements, and attachment elements secured to said resistance elements. In some preferred embodiments, a mechanical arm and/or top-carrying arm may be used to change the position of the resistance elements about a user. The resistance elements are preferably secured to a glove worn by a user, allowing for resistance in multiple directions. In one preferred embodiment, a control system may be used to adjust the tension of the resistance elements. In another embodiment, the system may be configured to operably connect to a gaming system, wherein an actuator operably connected to said resistance elements is responsible for adjusting tension based on actions by a user within a digital environment.

The present invention may be embodied as a system or method for dynamically exercising a user's neck muscles. The system includes a headset, an arm attached thereto, a weight, and at least one motor to move the weight, for example, about the arm. The weight may be mounted eccentrically on a radial track that is rotatable by one motor and moved linearly by another motor. The direction of the arm, the distance between an apex of the headset and the weight, the eccentricity of the weight on the axis, and the speed of rotation of the motor are all parameters that can be adjusted by the caregiver or user, either manually or via controlling software.

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.

The disclosure discloses a compensation method for output force of a strength-type intelligent fitness equipment, which relates to the field of intelligent fitness. The method comprises: obtaining the actual output force of the strength-type intelligent fitness equipment; obtaining the friction force of strength-type intelligent fitness equipment; compensating the output force of the strength-type intelligent fitness equipment based on the actual output force and the friction force.

A fitness exercise apparatus includes a base member, a support unit disposed on the base member, and a slide bar disposed on the support unit. A seat frame includes a connector connected to and slidable along the slide bar, a guide rail connected to the connector, and a foot post connected to the guide rail opposite to the connector. A swing frame is connected to the guide rail at a position corresponding to the foot post. An elastic cord unit includes a plurality of first and second elastic cords connected to the support unit. A pulling unit includes two first cables connectable with the first elastic cords. An operating unit is connectable with the first cables.

An exercise apparatus includes flexible elongated members configured for attachment to shoes of a user. Motor assemblies are disposed between the elongated members and the shoes, respectively, and cause the flexible elongated members to oscillate. Rotational drums attached to the flexible elongated members and are configured to rotate the flexible elongated members while the elongated members oscillate.

An exercise machine is disclosed. The exercise machine comprises a tension generating device. The exercise machine comprises a translatable arm mount coupled to the tension generating device. The exercise machine comprises an arm coupled to the translatable arm mount. The exercise machine comprises a cable coupled to the tension generating device via the arm.

A safety signal is sent to a relay coupled to a plurality of power leads of a motor wherein a default state of the relay is to short the plurality of power leads together and wherein the safety signal maintains the relay in an open state. The safety signal to the relay is deasserted in response to a determination that an unsafe condition has occurred.