Table 1 Characteristics of the subjects

Age (years)

47 ± 6.9

Female sex (%)

52

Height (cm)

168.9 ± 8.9

Weight (kg)

80 ± 16.4

Lateral BML total score (possible range 0–6)

0.27 ± 0.78

Medial BML total score (possible range 0–6)

0.48 ± 1.09

Any lateral BML (%)

14

Any medial BML (%)

24

Lateral chondral defects score (possible range 0–8)

2.20 ± 0.91

Medial chondral defects score (possible range 0–8)

2.39 ± 1.09

Any lateral chondral defects (%)

44

Any medial chondral defects (%)

47

Any ROA of the knee at baseline (%)

16

Total ROA score at baseline (possible range 0–12)

0.3 ± 0.8

Knee alignment (degrees)

180.4 ± 2.6

Muscle strength (kg)

118.3 ± 48

WOMAC pain score (possible range 0–45)

3.7 ± 5.7