Table 2. Strength data for men and women.
Men (n = 16) Women (n = 16) p d
Mean ± SD (95%CI) Mean ± SD (95%CI)
IS force (N)* 2660 ± 618 (2331-2989) 2219 ± 533 (1935-2503) 0.039 0.76
Normalized IS to BW 3.39 ± 0.68 (3.03-3.75) 3.38 ± 0.80 (2.95-3.81) 0.981 0.01
Normalized IS to lean BW 4.31 ± 0.87 (3.85-4.77) 4.69 ± 0.97 (4.16-5.20) 0.261 -0.41
IKF torque (N·m)* 180.4 ± 29.4 (164.8-196.1) 130.4 ± 27.0 (116.0-144.8) ≤ 0.001 1.77
Normalized IKF to BM (Nm·kg-1)* 2.28 ± 0.24 (2.15-2.41) 1.98 ± 0.44 (1.74-2.21) 0.023 0.85
Normalized IKF to thigh LM (Nm·kg-1) 20.7 ± 2.5 (19.3-22.0) 19.5 ± 5.7 (16.5-22.6) 0.531 0.25
IKE torque (N·m)* 290.8 ± 63.9 (256.8-324.9) 210.6 ± 40.3 (189.1-232.0) ≤ 0.001 1.50
Normalized IKE to BM (Nm·kg-1) 3.70 ± 0.79 (3.28-4.13) 3.21 ± 0.70 (2.83-3.58) 0.072 0.66
Normalized IKE to thigh LM (Nm·kg-1) 33.3 ± 6.4 (29.9-36.7) 31.6 ± 9.2 (26.7-36.5) 0.480 0.22
Ratio of H:Q Isometric Torque 0.64 ± 0.14 (0.57-0.72) 0.63 ± 0.16 (0.55-0.72) 0.869 0.07
IS: Isometric squat; BW: Body weight; IKF: Isometric knee flexion; IKE: Isometric knee extension; BM: Body mass (of entire body) was used for normalization of IKE and IKF for comparison to previous research; LM: lean mass; H:Q, hamstring to quadriceps ratio of torque maximal produced during the IKF and IKE respectively. Data is presented as mean ± SD with 95% confidence intervals (95%CI) and Cohen’s effect size (d).
*Significant difference between men and women (p ≤ 0.05).