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. 2017 Jan 18;3:6. doi: 10.1186/s40798-016-0072-x

Table 1.

Summary of the statistical analyses

Peak measures Interaction df(2,38) Height df(1,19) Instruction df(2,38)
F p value Effect size F p value Effect size F p value Effect size
Knee flexion angle (°) 1.6 0.21 0.01 T 206.2 <0.01 0.30 L 103.0 <0.01 0.57 L
Vertical nGRF (N/kg) 0.5 0.64 <0.01 T 104.8 <0.01 0.27 L 86.8 <0.01 0.53 L
Knee compression force (N/kg) 0.1 0.89 <0.01 T 68.0 <0.01 0.17 M 90.8 <0.01 0.53 L
Knee flexion moment (Nm/kg) 16.5 <0.01 0.05 S 230.2 <0.01 0.45 L 15.8 <0.01 0.05 S
Measures at the peak knee flexion moment
 Knee abduction moment (Nm/kg) 2.4 0.10 0.01 T 44.3 <0.01 0.14 M 0.2 0.82 <0.01 T
 Knee external rotation moment (Nm/kg) 2.2 0.13 0.01 T 14.7 <0.01 0.06 S 5.8 <0.01 0.02 T
 Ankle flexion moment (Nm/kg) 2.6 0.08 0.01 T 105.1 <0.01 0.37 L 0.5 0.60 0.01 T
 Hip extension moment (Nm/kg) 1.1 0.36 <0.01 T 1.7 0.21 0.01 T 6.5 <0.01 0.05 S
 Ankle power (W/kg) 5.3 0.01 0.03 S 85.7 <0.01 0.48 L 3.3 <0.05 0.05 S
 Knee power (W/kg) 9.4 <0.01 0.03 S 139.3 <0.01 0.63 L 7.0 <0.01 0.06 S
 Hip power (W/kg) 10.3 <0.01 0.06 S 2.8 0.11 0.04 S 12.2 <0.01 0.07 S
Measures of trial order effect Order df(1,19)
F p value Effect size
 Peak knee compression force (N/kg) 0.2 0.701 <0.01 T
 Peak knee flexion moment (Nm/kg) 0.56 0.465 0.01 T

The effect sizes are reported using generalized eta squared. T trivial, S small, M moderate, L large