Variables Mean Std. Deviation (SD) Age 67.19 8.24 BMI 26.47 4.03 Time (months) 8.14 4.61 Weight 77.95 14.67 WOMAC-total 59.2 14.9 WOMAC-function 43.2 9.92 WOMAC-pain 11.0 4.56 WOMAC-stiff 5.3 1.64

Table 1: Participant’s characteristic.