The DST-Dynamic Stair Trainer is a progressive rehabilitation device designed to retrain the gradual use of stair-climbing skills in order to regain mobility and independence. The apparatus features four steps whose height can be adjusted electronically from zero to 16.5 centimeters (0- 6.5 inches) between steps. The DST is also equipped with handrails on either side; the height of the handrails can be adjusted.