Abstract: This application relates to apparatus and methods for rowing machine systems. In some examples, an instrumented handle for a rowing machine includes a printed circuit board (PCB) with a processor, a transceiver, a memory device, an accelerometer, a gyroscope, and a pulse sensor. The instrumented handle also includes an actuator embedded in a handle grip of the instrumented handle. The processor is configured to communicate with a server, such as a cloud-based server, via the transceiver. The processor may receive sensor data from the accelerometer, the gyroscope, and the pulse sensor, and may generate rower data based on the received sensor data. Further, the processor may transmit the rower data to the server for updating an application, such as a leaderboard or a simulation. In some examples, the processor provides the rower data for display on a display of the rowing machine.

Abstract: An exercise machine includes a shaft configured to rotate about an axis; a spool configured to receive a strap and drive rotation of the shaft about the axis in response to movement of the strap; a flywheel configured to rotate about the axis; one or more conductive coils arranged to generate magnetic fields that induce eddy currents in the flywheel; a clutch configured to engage and disengage transmission of torque between the spool and the flywheel; and a spring arranged around the axis, the spring configured to exert a return torque on the spool about the axis in response to rotation of the shaft.

Abstract: An exercise machine includes a shaft configured to rotate about an axis; a spool configured to receive a strap and drive rotation of the shaft about the axis in response to movement of the strap; a flywheel configured to rotate about the axis; one or more conductive coils arranged to generate magnetic fields that induce eddy currents in the flywheel; a clutch configured to engage and disengage transmission of torque between the spool and the flywheel; and a spring arranged around the axis, the spring configured to exert a return torque on the spool about the axis in response to rotation of the shaft.

Abstract: An exercise machine includes a shaft configured to rotate about an axis; a spool configured to receive a strap and drive rotation of the shaft about the axis in response to movement of the strap; a flywheel configured to rotate about the axis; one or more conductive coils arranged to generate magnetic fields that induce eddy currents in the flywheel; a clutch configured to engage and disengage transmission of torque between the spool and the flywheel; and a spring arranged around the axis, the spring configured to exert a return torque on the spool about the axis in response to rotation of the shaft.