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. 2013 Jul 5;37:47–53. doi: 10.2478/hukin-2013-0024

Table 1 .

Mean, Standard Deviation, ICC intraclass correlation coefficient and CI confidence interval of PT (Nm) for knee extensor and flexor muscles obtained during isokinetic tests.

Peak torque (Nm) Mean ± SD Within Between All P-value 95% CI SEM (%) ±



Session 1 Session 2 Session 3 ICC (2–3) ICC (1–2) ICC lower; upper MDC (%)
Quadriceps right
Concentric at 60ºs −1 229.4 ± 37.5 223.5 ± 33.9 224.5 ± 37.5 .93 .93 .95 0.290 0.90; 0.98 3.6 ± 9.9
Isometric 257.8 ± 46.9 255.3 ± 55.7 245.9 ± 55.4 .99 .92 .96 0.210 0.92; 0.98 4.2 ± 11.6
Eccentric at 60ºs −1 303.0 ± 63.6 303.3 ± 66.7 298.4 ± 62.7 .97 .93 .96 0.055 0.93; 0.98 4.1 ± 11.3
Hamstrings right
Concentric at 60ºs −1 125.0 ± 27.3 129.9 ± 29.6 129.7 ± 27.9 .97 .89 .95 0.021 0.90; 0.98 4.9 ± 13.5
Isometric 138.1 ± 34.1 139.9 ± 33.8 131.1 ± 33.5 .99 .93 .96 0.660 0.92; 0.98 4.8 ± 13.3
Eccentric at 60ºs −1 171.5 ± 33.8 166.9 ± 40.9 162.4 ± 40.3 .97 .91 .95 0.088 0.91; 0.98 5.1 ± 14.1
Quadriceps left
Concentric at 60ºs −1 219.4 ± 36.5 215.9 ± 38.0 213.8 ± 38.5 .96 .96 .95 0.343 0.91; 0.98 3.8 ± 10.5
Isometric 236.0 ± 43.9 235.3 ± 46.5 235.3 ± 43.7 .94 .94 .93 0.688 0.87; 0.97 4.8 ± 13.3
Eccentric at 60ºs −1 267.8 ± 58.8 268.4 ± 59.9 271.8 ± 59.6 .96 .96 .96 0.988 0.92; 0.98 4.4 ± 12.2
Hamstrings left
Concentric at 60ºs −1 129.3 ± 26.6 127.6 ± 25.9 130.0 ± 31.2 .96 .96 .96 0.809 0.91; 0.98 4.8 ± 13.3
Isometric 129.8 ± 33.5 129.6 ± 31.2 127.7 ± 31.0 .91 .91 .94 0.755 0.89; 0.97 5.7 ± 15.8
Eccentric at 60ºs −1 162.2 ± 36.4 156.2 ± 33.7 161.8 ± 34.1 .98 .98 .97 0.075 0.94; 0.99 3.5 ± 9.7