Table 2 Participant characteristics at baseline

Mean age (min-max), years

55.6 (45–66)

54.6 (45–66)

55.3 (47–65)

56. 8 (46–66)

Gender (male/female), n

30/38

12/11

9/14

9/13

Mean weight (min-max), kg

62.8 (40–100)

63.4 (40–100)

62.6 (49–78)

62.3 (46–78)

Mean height (min-max), m

1.5 (1.4–1.7)

1.5 (1.4–1.7)

1.5 (1.4–1.7)

1.5 (1.4–1.7)

Mean BMI (min-max), kg/m²

26.1 (14.7–33.3)

26.2 (14.7–33.3)

26.1 (18.1–30.5)

26.1 (20.4–30.1)

Mean (SD) NRS

5.9 (0.8)

5.7 (0.8)

6.1 (0.7)

5.8 (0.8)

Mean (SD) WOMAC, %

53.3 (3.2)

52.9 (3.3)

53.3 (3.1)

53.8 (3.3)

Mean (SD) Quadriceps muscle strength, kg

10.8 (1.9)

11.1 (2.2)

11.04 (1.6)

10.2 (1.9)

Mean (SD) TUG, sec

9.4 (0.3)

9.4 (0.4)

9.3 (0.3)

9.3 (0.3)