The time it takes to rise from a seated position in a straight-backed chair to a standing position unsupported. The test may be performed in several ways. In one assessment the subject gets up from a chair five times, and the time it takes to complete these maneuvers is measured. In another assessment the number of times the patient can get up and down in 30 sec is counted. The test is one of several used in physical therapy and gerontology to assess balance, endurance, mobility, and strength.