Fig. 2

Muscle strength (mean ± one standard deviation) for hip osteoarthritis (n = 14) and control (n = 15) participants at baseline and 12-month follow-up; (a) knee extension, (b) knee flexion, (c) hip extension, (d) hip flexion, (e) hip abduction, and (f) hip adduction. Cntl – control group; HOA – hip osteoarthritis group; ^*p < 0.05 – significant difference from baseline to follow-up in the hip osteoarthritis group