The present disclosure generally relates to managing user interfaces associated with physical activities. The user interface displays a scrollable list of affordances associated with physical activities. The affordances may contain physical activity and heart rate information. A user can launch a physical activity tracking function or an interface to change a workout metric using an affordance. Users can also control the music that is played in response to selecting a workout. Further, the interface can be used to compose a reply message to a received message that contains workout information. The interfaces can show a graph that includes heart data when the user's heart rate meets a heart rate alert criteria.

Resistance mechanism and method for an exercise cycle includes an adjusting bracket having magnets mounted on its inner surface and spaced from a flywheel, an adjustment shaft having a threaded rod rotatably disposed through a tubular sleeve disposed on a frame and above the adjustment bracket, a threaded member mounted on the adjustment bracket and connected the threaded rod, and a linking assembly mounting the adjustment bracket to the frame, and including a first member, a first linking member, a first sensor, and a second sensor. The first sensor is disposed on the first member adjacent to the first end of the first linking member, a second sensor is disposed on the first linking member adjacent to the first sensor. A relative position of the first sensor and the second sensor is changed with respect to the corresponding movements of the adjusting bracket.

A shaft for a golf club includes a first end, a second end, and a demarcation. The first end is adapted to attach to a club head. The second end is adapted to receive a grip distal to the first end. The demarcation is positioned at or adjacent to the balance point of the golf club between the first end and the second end.

The invention is directed to systems, devices, and methods for measuring force and repetitions during exercise or rehabilitation activities. Devices in accordance with some embodiments may include: a casing; a processor within the casing; a display visibly on the casing; a first attachment portion on one end of the casing; a second attachment portion on an opposite end of the casing; and a force sensor connected to the first and the second attachment portion, the force sensor in communication with the processor. Methods may include: attaching an exercise band to the wireless force measurement device; conducting exercises causing the exercise band to stretch and pull away from the wireless force measurement device; counting, by the device, the number of times the band stretches and pulls away from the device; determining, by the device the amount of force applied through the exercise band during the exercise.

The invention pertains to a stationary exercise bike along with a display that provides instruction to lead a rider through an exercise program. The invention allows a rider to obtain benefits of a group, instructor-led class though the rider's schedule does not permit the rider to participate in the class. The invention also describes a method of exercising with the foregoing bike and display.

An American style football including an inflatable bladder, a cover surrounding the bladder, a battery carried by the football, and a light emitter. The light emitter is carried by the football and is electrically connected to the battery. At least a portion of the cover transmits light from the light emitter.

A cardiovascular exercise device is provided. The cardiovascular exercise device is for use to administer an exercise program including shuttle runs. The cardiovascular exercise device includes: a tower placeable at a first location; a user input associated with the tower; a pacing bar arranged to display a target pace of a user for a shuttle run of a track distance from the first location; and a processor configured to operate an exercise program. The administration of the exercise program includes the steps of: receiving a signal from the user input; defining a repetition as the time between subsequent signals from the user input; and indicating pacing information to the user based upon this signal.

A system for measuring weight-lifting performance is described. The system comprises a collar that may be attached to a weight bar, wherein the collar comprises at least one motion sensor, at least one touch sensor, and a signal processor. The motion sensors comprise a barometric altimeter, a gyroscope, and/or an accelerometer that measure the motion of the weight bar during a lifting activity. Signals from the motion sensors are interpreted by the signal processor as physical activity data, which are then wirelessly transmitted to a multimedia device having a data processor. The data processor is configured to calculate performance metrics from the physical activity data and to display them to a user via a display on the multimedia device. Athletes may use the performance metric outputs from the data processor to monitor the form of their lifting exercises for training purposes, safety considerations, and self-improvement.

A device for upper-limb rehabilitation, which assists a user in exercising the arm for rehabilitation, has a connector, a placing unit movably connected to the connector, and a driving unit configured to move the connector, wherein when a user places the arm on the placing unit and moves the placing unit, the driving unit is operated to move the connector along the placing unit, so as to enlarge a work space in which the user is capable of moving the arm.

In various implementations, an adjustable dumbbell system may include a handle assembly, two or more weight plates, and a base. The weight plates and the handle assembly may be configured such that each weight plate can be selectively coupled to and decoupled from the handle assembly. The base may be configured to support each of the weight plates. The base may include a sensing mechanism that senses a characteristic of the weight plates where the characteristic depends upon which of the weight plates are supported by the base.