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Table 2 Subject muscle characteristics

From: Ultrasound measures of muscle thickness may be superior to strength testing in adults with knee osteoarthritis: a cross-sectional study

  Paired t-test
  Symptomatic Asymptomatic  
Strength measured as torque (Nm) normalized to body weight (kg)
 Knee extensor 96 (58.9) 95.2 (53.6) 0.84
 Hip abductors 85.8 (27.1) 88.5 (29.1) 0.44
 Hip adductors 90.4 (31.8) 91.9 (34.2) 0.72
 Ankle plantarflexors 29.1 (11.1) 30.3 (11.7) 0.26
Muscle thickness (mm) normalized to weight (kg)
 Quadriceps 0.37 (0.12) 0.38 (0.12) 0.32
 Hip abductors 0.42 (0.13) 0.42 (0.13) 0.72
 Hip adductors 0.59 (0.18) 0.60 (0.18) 0.24
 Ankle plantarflexors 0.56 (0.24) 0.56 (0.22) 0.98
Muscle thickness (mm) non-normalized
 Quad 28.4 (9.1) 29.2 (9.3) 0.27
 Hip abductors 32.0 (10.9) 31.7 (10.2) 0.61
 Hip adductors 44.7 (13.3) 45.4 (12.5) 0.34
 Ankle plantarflexors 42.4 (17.5) 42.4 (16.2) 0.99
  1. The terms in parentheses indicate standard deviations