A computer-aided physiotherapeutic stair & gait system has a set of at least three horizontal tread surfaces and an associated drive system for adjusting a rise height between adjacent of the tread surfaces to form a set of stairs with uniform pitch for a range of different rise heights. A sensor set measures parameters related to physiotherapy performed using the set of stairs and provides an output to a computer system. The sensors include one or more of: a rise height sensor for sensing the pitch of the stairs, a heart rate sensor, a handrail grip position sensor, and load cells for analyzing the distribution of the weight of a patient during use of the system.
