Rowing machines are described that permit a rower to adjust the rowing resistance using a gear shift mechanism. The rowing machine includes a handle connected to a chain, which passes, sequentially, over a derailleur and then to the gears of the gear cassette. The gear cassette is coupled to a resistance unit, which may be similar to resistance units used in off wheel bicycle trainers. This configuration of derailleur and gear cassette permit the rower to smoothly select a gear.

Embodiments of the present invention are directed to devices, systems, and methods for implementing drills and providing coaching instructions to users. Embodiments may load a drill, measure values obtained from one or more sensors installed on a player's tennis racket and/or worn on the player's body, and use those values to detect various parameters, such as the physical impact of a ball at the player's racket. Embodiments may then output a coaching instruction to the user. Embodiments may also include adding customized coaching instructions to a drill.

A system includes a minimally intrusive display system (MIDS) configured to be disposed on an eyewear. The MIDS includes a display system and a sensor system configured to provide for a sensor data. The MIDS further includes a processor configured to process the sensor data to derive a physiological measure. The processor is further configured to display, via the display system, the physiological measure, wherein the display system is disposed in the eyewear so that the physiological measure is only viewed when a user of the eyewear turns the user's pupil towards the display system at angle α from a forward direction.

Systems and methods for adjusting resistance on an exercise cycle having a frame and a flywheel include calibration, homing and auto-follow routines. A resistance apparatus comprising an actuator is configured to selectively position the resistance apparatus relative to the flywheel, wherein a distance between the resistance apparatus to the flywheel corresponds to resistance applied to the flywheel. Control components are configured to control operation of the resistance system in response to instructions, and a computing device is configured to output media for an exercise class to a user, the exercise class comprising one or more target resistance ranges corresponding to a segment of the exercise class. The computing device is further configured to selectively implement auto-follow logic configured to determine a target resistance value for a current segment of the exercise class and instruct the control components to adjust the resistance system to the target resistance value.

A method includes providing a first video file to a plurality of exercise machines, the first video file including content associated with an exercise class. The method also includes receiving user data from the plurality of exercise machines, the user data including respective settings associated with a common performance metric. In such a method, the respective settings are used on the plurality of exercise machines during playback of a particular part of the first video file. The method also includes identifying a timestamp associated with the particular part of the first video file, and generating an executable control corresponding to the performance metric. The method further includes generating a second video file comprising the content and the executable control. In such methods, playback of the second video file causes display of the executable control at a part of the second video file corresponding to the timestamp.

An isometric exercise system comprised of a network-enabled isometric exercise apparatus, force correction equations, and an isometric exercise companion software application. The isometric exercise apparatus can include force-receiving components, a measurement component, a pivot assembly, and a structural assembly. The measurement component can measure the amount of applied force. The pivot assembly can rotationally transfer the applied force to the measurement component. Force analysis of exercises can indicate that only a tangential component of the applied force is mechanically transferred to the measurement component via the pivot assembly. The force correction equations can translate the measured force into the tangential force transferred by the pivot assembly. The isometric exercise companion software application can present the amount of weight manipulated by the user to perform the exercise calculated using the force correction equation and the measured force. This calculation can have greater accuracy and consistency than utilizing the measured force.

An offloading system for use with a treadmill includes an air chamber configured to be selectively inflated between a deflated condition and an inflated, operating condition, a user seal coupled to the air chamber and adapted to receive a user so that, in the operating condition, at least a portion of the user is received in the user seal and positioned within the air chamber, a pump operable to inflate the air chamber, and a controller configured to determine an occurrence of a loss of pressure in the air chamber and, in response to the occurrence, cause a reduction of speed of a running belt of the treadmill.

A system includes a minimally intrusive display system (MIDS) configured to be disposed on an eyewear. The MIDS includes a display system and a sensor system configured to provide for a sensor data. The MIDS further includes a processor configured to process the sensor data to derive an activity metric. The processor is further configured to display, via the display system, the activity metric, wherein the display system is disposed in the eyewear so that the activity metric is only viewed when a user of the eyewear turns the user's pupil towards the display system at angle α from a forward direction.

A method of operating a fitness tracking system including a plurality of sensors is disclosed herein. The method includes mounting a biometric monitoring device on an article of apparel worn by a user. The method further includes receiving a prompt indicating that the user intends to provide a verbal cue via a microphone provided on the biometric monitoring device. After receiving the verbal cue from the user one of a plurality of exercise modules is selected for execution by the processor. Each of the plurality of exercise modules is configured to generate workout metrics based at least in part on physiological data received from a first of the plurality of sensors without regard to physiological data from a second of the plurality of sensors. The selected exercise module generates workout metrics for the user for a limited period of time ranging from selection of the exercise module until occurrence of a termination event.

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.