One-Leg Rise Challenge


How many times can you stand up from a chair using only one leg?

This test, called the one-leg rise test or the single-leg sit-to-stand, is an especially useful functional test. It demonstrates how strong your muscles are relative to your particular height, weight, and body type. In fact, in middle aged individuals with knee pain but no arthritis, the number of single-leg rises an individual can perform has been shown to predict the development of knee osteoarthritis (OA). In a 2004 study by Thorstensson et al., the number of single-leg rises performed by subjects who had no OA at the time predicted the development of OA even when controlling for factors like age, sex, and BMI. The median number of single-leg rises in the group who developed OA was 17, while the median number in the group that did not develop OA was 25. A 2015 study by Culvenor et al. further showed that the number of single-leg rises performed by adults who had an ACL reconstruction one year prior predicted pain and ability three years after surgery. In this study, 22 one-leg rises was used as the cutoff score.