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Table 1 Characteristics of patients with knee osteoarthritis (N = 52)

From: Lateral Trunk Motion and Knee Pain in Osteoarthritis of the Knee: a cross-sectional study

   Mean ± SD Range N(%)
Gender Female    43 (83%)
  Male    9 (17%)
Age, years   60.5 ± 8.0 45 - 79  
Body mass index, kg/m2   29.0 ± 3.9 22.4 - 37.4  
Duration of symptoms, years   6.2 ± 8.1 1 - 47  
Lateral trunk motion, degrees   22.7 ± 6.6 10.7 - 38.9  
Maximum walking speed (m/s)   1.14 ± 0.28 0.51 - 1.64  
WOMAC-Stiffness score   4.1 ± 1.9 0 - 8  
WOMAC-Pain score   11.2 ± 5.4 0 - 20  
Pain (VAS 0-10)   5.0 ± 2.5 0.3 - 9.3  
Isokinetic muscle strength, (quadriceps/hamstrings) Nm/kg   0.78 ± 0.35 0.08 - 1.63  
K&L grade*, no of knees     
   Right     
  Grade 0    0
  Grade 1    37 (71.2%)
  Grade 2    8 (15.4%)
  Grade 3    5 (9.6%)
  Grade 4    1 (1.9%)
  Missing    1 (1.9%)
   Left     
  Grade 0    2 (3.8%)
  Grade 1    33 (63.5%)
  Grade 2    7 (13.3%)
  Grade 3    8 (15.4%)
  Grade 4    2 (3.8%)
Joint Space Narrowing     
   Right     
Medial     25 (48.0%)
Lateral     4 (7.6%)
   Left     
Medial     29 (55.8%)
Lateral     9 (17.3%)
Osteophytes     
   Right     
Medial     49 (94.3%)
lateral     44 (84.7%)
   Left     
Medial     50 (96.2%)
Lateral     44 (84.6%)
  1. WOMAC = Western Ontario and McMasters Universities Osteoarthritis Index
  2. *Kellgren & Lawrence score of knee OA