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. Author manuscript; available in PMC: 2017 Jan 1.
Published in final edited form as: Knee. 2015 Aug 29;23(1):49–56. doi: 10.1016/j.knee.2015.07.011

Table 4.

Group comparisons of Varus/Valgus positions, excursions and quadriceps and hip abductor muscle strength between the knee OA and control groups.

Control (n=11) Knee OA (n=11) 95% Confidence interval for Group Difference Effect Size (Partial eta2) Significance (P-value)
Varus (-)/Valgus (+) angle @ heel contact (°)* 0.1 ± 3.7 -0.5 ± 8.3 -7.7 to 6.8 0.01 0.90
Peak Varus (-)/Valgus (+) anglef (°)* -0.8 ± 3.7 -1.5 ± 9.1 -8.6 to 7.1 0.01 0.84
Varus (-)/Valgus (+) Motion Excursion (°)* -1.0 ±0.3 -1.8 ± 1.3 -2.4 to -0.5 0.33 <0.01
Quadriceps Strength (Nm/kg) 1.0 ± 0.2 0.8 ± 0.2 0.02 to 0.4 0.21 0.03
Hip Abductor Strength (Nm/kg) 0.8 ± 0.2 0.6 ± 0.2 0.02 to 0.4 0.21 0.03

All values are expressed as mean ± standard deviations. OA = Osteoarthritis

*

Analysis was adjusted for group differences in body mass index.