A stationary exercise device comprises pedals mounted via cranks to opposite sides of a drive wheel; a flywheel with a magnetic rim coupled to the drive wheel; a brake with a motor and one or more permanent magnets mounted for movement relative to the magnetic rim; a measuring unit for measuring at least one of the drive force applied via the drive wheel and the related torque; a measuring device for measuring cadence; and a command module. The command module uses measurements from the measuring unit and the measuring device to calculate a performance parameter and compares the performance parameter against a predetermined performance profile. The command module also can control the motor to move the permanent magnets relative to the magnetic rim to adjust the braking force applied and thereby adjust the performance parameter to conform with the performance profile.

A stationary exercise device with a driving assembly with a driving wheel rotating around a driving axle, a first and a second crank each connected to the driving wheel and two pedals, each connected to one of the cranks, a flywheel connected to the driving assembly by at least one gear mechanism, a brake assembly for applying a braking force to the flywheel, at least one measuring device for measuring the position of the first and second crank is provided. A detection device detects several time intervals, in each of which the flywheel is displaced a predetermined angle, the detection device further detects time differences between at least two of the time intervals. A control device determines, through dependence of the time differences between at least two of the time intervals, a torque at the driving wheel or a value dependent on the torque at the driving wheel.

A method includes receiving electronic content via a network, the electronic content comprising an exercise class, and receiving user data associated with a user participating in the exercise class using an exercise machine. The method also includes generating an executable control for a user interface based at least in part on the user data, and providing the executable control, via a display of the exercise machine, while the user is participating in the exercise class. In such a method, the executable control is operable to modify a parameter of the exercise machine while the user is participating in the exercise class.

A weight training method, a weight training apparatus and a weight training system are provided. In the method, a weight of a load of a user operating the weight training apparatus is detected by a load sensor, a motion of the load is detected by an activity sensor, and thereby an operation power of the weight training apparatus is calculated. A force applied by the muscle portion when the user operates the weight training apparatus is detected by at least one biophysical quantity sensor disposed on at least one muscle portion of the user and used to calculate an energy power consumed by the user. An exercise efficiency value of the user is calculated by using the energy power and the operation power, and the user is prompted to adjust an operation performed on the weight training apparatus when the exercise efficiency value drops beyond a preset ratio.

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.

The present disclosure generally relates to user interfaces for managing, modifying, and/or outputting workout content.

An exercise apparatus includes: an electrical generator which is configured to be driven by user effort; an electrical output port configured to electrically connect to an electrical storage device or an inverter; and an electrical resistive load. An electrical energy conversion unit has an input connected to the electrical generator and is configured to receive electrical energy from the electrical generator. The electrical energy conversion unit has a first output connected to the electrical output port and a second output connected to the electrical load. A controller is configured to receive an input selection of a required exercise resistance and to determine a first output voltage/current for the first output of the electrical energy conversion unit and a second output voltage/current for the second output of the electrical energy conversion unit to provide the required exercise resistance.

Methods and apparatuses related to monitoring basketballs are described. In particular, a system for monitoring basketballs may include at least one non-intrusive sensor for sensing motion of a basketball during a missed basketball shot as the basketball travels along a rebound flight path from a basketball goal. The system may also include at least one processor configured to i) generate, based on the sensed motion, trajectory parameters that characterize one or more states of the basketball along the rebound flight path and ii) generate feedback information using the trajectory parameters. The system may further include at least one feedback output mechanism for providing the feedback information to a user.

A method includes receiving electronic content via a network, the electronic content comprising an exercise class, and receiving user data associated with a user participating in the exercise class using an exercise machine. The method also includes generating an executable control for a user interface based at least in part on the user data, and providing the executable control, via a display of the exercise machine, while the user is participating in the exercise class. In such a method, the executable control is operable to modify a parameter of the exercise machine while the user is participating in the exercise class.

A method for gait retraining of a runner includes: measuring acceleration data of at least one lower leg of the runner; diagnosing the acceleration data thereby determining a measure of the impact intensity of at least one external tibial shock; and providing real-time feedback to the runner by converting the measure of the impact intensity into distortion of music to a level which is perceived by the runner as a measure for the impact intensity. The conversion is done based on a predefined relationship between perceived distortion levels and imposed distortion levels, and the runner can reduce the distortion of the music by adjusting his or her gait.