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. 2019 Sep 13;16(18):3399. doi: 10.3390/ijerph16183399

Table 2.

Comparison of the normalized knee muscle strength (Nm/kg; mean ± Std. Deviation) of leg dominance (DO: dominant leg versus ND: nondominant leg) and sex (male versus female) effects and the interaction effects between leg dominance and sex. Effect size refers to partial eta squared ηp² and the observed power is listed as 1-β. Note: the symbol * represents a significant difference at p < 0.05.

Leg Dominance Effects DO (n = 15) ND (n = 15) p-Value ηp² 1-β
Normalized hamstring torque Nm/kg 1.65 ± 0.32 1.63 ± 0.34 0.749 0.008 0.060
Normalized quadricep torque Nm/kg 3.64 ± 0.79 3.63 ± 0.77 0.905 0.001 0.051
HQ ratio 0.46 ± 0.09 0.46 ± 0.09 0.882 0.002 0.053
Sex Effects Males (n = 8) Females (n = 7) p-Value ηp² 1-β
Normalized hamstring torque Nm/kg 1.79 ± 0.34 1.47 ± 0.17 0.047* 0.271 0.529
Normalized quadricep torque Nm/kg 3.94 ± 0.85 3.30 ± 0.42 0.096 0.199 0.384
HQ ratio 0.46 ± 0.08 0.46± 0.09 0.872 0.002 0.053
Interaction Effects: Males (n = 8) Females (n = 7) p-Value ηp² 1-β
Difference between DO and ND
in normalized hamstring torque 0.00 ± 0.28 0.04 ± 0.21 0.763 0.007 0.059
in normalized quadricep torque 0.00 ± 0.33 0.03 ± 0.69 0.897 0.001 0.051
in HQ ratio 0.01 ± 0.07 0.00 ± 0.07 0.861 0.002 0.053