Among other things, a rowing technology includes a first rowing machine having an electromagnetic brake providing a resistance to a rower of the machine in each rowing stroke of a series of rowing strokes of the rower An electronic controller causes the resistance of the electromagnetic brake to vary over each rowing stroke in a profile that emulates resistance to which another rower in a shell on water or on a second rowing machine is subjected in each rowing stroke of a corresponding series of rowing strokes.

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.

Disclosed are various approaches for determining the maximum oxygen consumption of a person, also known as maximum aerobic capacity or VO.sub.2 Max. A person is positioned on a treadmill. Attached to the person is a harness configured to apply a horizontal force to the person. A work rate for the person can be calculated based at least in part on the magnitude of the horizontal force applied by the harness and the velocity of the belt. The maximum oxygen consumption for the person can then be calculated based at least in part on the previously calculated work rate.

A body weight exercise device includes a frame, a first handle attached to the frame, a second handle attached to the frame, and a processor and memory. The memory includes programmed instructions to cause the processor to determine a characteristic associated with a performance of an exercise with the body weight exercise device.

A wobble board includes a platform, a base having a generally flat bottom surface, and at least one compressible member positioned intermediate the platform and the base such that the platform is pivotable with respect to the base.

An example method for providing enhanced event visualizations based on location data includes receiving, by a visualization processor, location data and sensor data for a plurality of participants; determining an impact indication for two or more participants of the plurality of participants based at least in part on the location data and sensor data; determining, by the visualization processor, a location of impact based on the impact indication and the location data and sensor data for the two or more participants; and generating an impact visualization interface configured to visually indicate impact data associated with the impact indication proximate the impact location.

A foot harness for resistance exercises. The foot harness may comprise: a top strap, a bottom strap, a heel strap, and one or more attachment points. A first end of the top strap, first end of the bottom strap, and first end of the heel strap may be coupled to one another at a first juncture region. A second end of the top strap, second end of the bottom strap, and second end of the heel strap may be coupled to one another at a second juncture region. The top strap may be adapted to engage with an upper portion of a shoe. The bottom strap may be adapted to engage with a bottom portion of the shoe. The heel strap may be adapted to engage with a rear portion of the shoe. The attachment points may be disposed at the first juncture region and the second juncture region.

A power operated exercise apparatus includes two drive mechanisms configured to drive a left pedal and a right pedal, and a position measuring device, force measuring devices for measuring positions and force conditions of the pedals. A control unit is configured to control the drive mechanism and receive measurement content of the measuring devices, and storing a plurality of exercise programs for being selected by the user. During at least one specific operation period, the control unit repeatedly determines in which directions the left pedal and the right pedal should be moved according to information of positions and force conditions of the pedals so as to meet the displacement path and the correlation of a selected one of the exercise programs and to immediately control the left drive mechanism and the right drive mechanism to respectively drive the left pedal and the right pedal to move in a determined direction.

An Interactive Exercise Activity System and Methods configured to provide environmental feedback stimulation based on group and individual performance data. The system and methods provide for the analysis of group performance data; whereby a reactive output is generated and configured to control environmental stimuli such as screen visualizations, ambient and equipment lighting, audio systems, and ventilation systems. The system and methods further utilize a gamification system which allows distinct exercise groups to compete against each other, whether on-site or remotely. The system and methods further provides for a transmission of a summary of an individual or group performance data at the completion of a workout session. An additional embodiment of the system and methods includes providing environmental stimulation to a user based on individual performance metrics.

A posture correction and weight balance apparatus includes a back support, a scale body, and a reflective body. The scale body includes a base, a left platform, a right platform, at least one first display, a left weight sensor, and a right weight sensor. The back support and the reflective body are oppositely positioned of each other about the scale body and terminally and perpendicularly attached to the base. The left platform and the right platform are adjacently aligned across the back support and mounted onto the base. The at least one first display is positioned adjacent to the reflective body and mounted onto the base. The left platform is electronically connected to the at least one first display through the left weight sensor. The right platform is electronically connected to the at least one first display through the right weight sensor.