US Patent 9004598 Seating system for a recumbent stepper

An adjustable seating apparatus for a recumbent stepper includes a seat base mounted to a carriage, which is mounted for longitudinal translation along a guide track. The seat base can be rotatable relative to the carriage. The seat base includes a first handle for releasing the carriage from an elongate positioning member to adjust the longitudinal position, and a second handle for releasing the seat base from a positioning plate to adjust the rotary position of the seat base relative to the carriage. When the seat base has been rotated from its nominal position, the carriage will generally be prevented from being released from the elongate positioning member.