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. Author manuscript; available in PMC: 2018 Sep 1.
Published in final edited form as: Arthritis Care Res (Hoboken). 2017 Aug 13;69(9):1360–1368. doi: 10.1002/acr.23139

Table 1. Baseline characteristics.

Characteristics HI Group N=84 LI Group N= 78
Sex – Men, no. (%) 39 (46) 34 (44)
Age (years) 63 (8) 64 (7)
BMI (kg/m2) 31 (5) 30 (5)
Stair Climbing Test (s) 17.20 (8.64) 16.41 (7.99)
Timed-Up-and-Go Test (s) 9.00 (2.91) 8.87 (2.46)
6-minute Walk Test (m) 455 (106) 466 (99)
WOMAC 34 (13) 33 (15)
SF-12 Physical Component Scale 36 (9) 37 (9)
SF-12 Mental Component Scale 54 (9) 54 (10)
Knee Extension (°) 1 (4) 0 (4)
Knee Flexion (°) 126 (10) 126 (11)
Quadriceps Strength (Nm/kg) 1.18 (0.54) 1.24 (0.49)
Hamstring Strength (Nm/kg) 0.73 (0.32) 0.75 (0.29)
Quadriceps Activation (%) 70.9 (16.8) 72.3 (14.2)

All values are mean ± standard deviation except for sex which is reported in number of individuals and percent. Negative values of knee extension represent hyperextension. HI=High-intensity group. LI= Low-intensity group. BMI=body mass index. WOMAC=Western Ontario and McMaster Universities Osteoarthritis Index. SF-12=Short-form 12.