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. 2013 Apr 23;5(3):205–216. doi: 10.4021/jocmr1137w

Table 4. Post-Hoc Power Calculations .

Main outcomes Effect Size Total sample size required (n)
LE relative strength (Nm/kg) 0.66 (-0.50, 1.82) 10
CP relative strength (N/kg) 0.92 (-0.27, 2.11) 9
LP relative peak power (W/kg) 0.78 (-0.50,2.07) 12
Counter-movement jumpheight (cm) 0.60 (-0.56, 1.76) 18

*G-power software (GPower 3.0 for Windows, Germany) used to compute sample size necessary to achieve statistical significance assuming and two-sided alpha of 0.05 and a beta of 0.20. Sample size assumes a 2-group design, with equal 1:1 allocation to each group. Power calculations were performed for the 4 variables with the largest Effect Sizes observed in this pilot study.