“…[23][24][25][26][28][29][30][31] Eight studies had small samples, with less than 30 subjects per group. [19][20][21][22]27,[29][30][31] The studies analyzed the impact of exercises on the functional capacity, especially with the tests going up and down stairs, 22,23,29,30 getting up from a chair, 21,22,29,30,31 the WOMAC physical function subscale, 26,29,30,31 and walking. [19][20][21][22][24][25][26][27][28][29][30][31] Pain was evaluated in most studies with the WOMAC pain subscale.…”