Table 1 Characteristics of study participants
|  | N = 27 |
|---|---|
Age, years | 63.2 (7.6) |
Female, n (%) | 18 (66.7) |
Body mass index, kg/m2 | 28.0 (4.1) |
Joint space width, mm | 2.39 (0.98) |
Kellgren-Lawrence grade, n (%) | |
 1 | 1 (3.7) |
 2 | 11 (40.7) |
 3 | 13 (48.1) |
 4 | 2 (7.4) |
Hip muscle cross-sectional area, cm2 | |
Flexors | |
  Psoas major | 13.9 (3.7) |
  Rectus femoris | 8.0 (2.3) |
  Flexors totala | 21.8 (5.7) |
Extensors | |
  Gluteus maximus | 46.1 (10.2) |
Adductors | |
  Adductor longus and magnus | 40.3 (10.8) |
Abductors | |
  Gluteus medius and minimus | 32.4 (6.9) |
Rotators | |
  Obturator internus | 11.9 (2.0) |
  Obturator externus | 26.5 (4.7) |
  Rotators totalb | 38.5 (5.7) |
HOOS scores | |
 Pain | 66.5 (21.6) |
 Symptoms | 66.7 (18.6) |
 Activity of daily living | 72.6 (24.2) |
 Sport and recreation function | 60.7 (28.7) |
 Hip-related quality of life | 52.3 (25.0) |