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Table 1 Patient characteristics at baseline

From: Six-week high-intensity exercise program for middle-aged patients with knee osteoarthritis: a randomized controlled trial [ISRCTN20244858]

  Exercise group n = 30 Control group n = 31 p-value
Age (years) mean ± SD (range) 54.8 ± 7.1 (36–64) 57.3 ± 4.7 (46–65) 0.16
Gender number (%) women 15 (50%) 16 (52%) 0.90
BMI (kg/m)2 mean ± SD 29.6 ± 4.5 29.5 ± 5.1 0.78
Aerobic capacity (ml O2/kgxmin) mean ± SD 25.9 ± 6.4 25.2 ± 4.9 0.66
KOOS* pain 60 ± 18 64 ± 19 0.38
KOOS* symptoms 63 ± 20 66 ± 18 0.67
KOOS* ADL 69 ± 18 71 ± 21 0.76
KOOS* sport & recreation 34 ± 31 37 ± 29 0.54
KOOS* QOL 40 ± 15 46 ± 21 0.31
  1. Knee Injury and Osteoarthritis Outcome Score [18, 19]
  2. Score from 0–100, worst to best.