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. 2023 Apr 8;123(8):1773–1787. doi: 10.1007/s00421-023-05184-6

Table 3.

Descriptive statistics and results of two-way ANOVA for maximal strength and ROM

Parameter Pretest (M ± SD) in N Post-test (M ± SD) in N Pre-Post-Diff. in % Time effect Time × group
IG1MVC180 1522.61 ± 310.25 1796.78 ± 368.08  + 18.00 p < 0.001 p < 0.001
IG2MVC180 1594 ± 321.78 1807.8 ± 361.11  + 13.36 F = 88.26 F = 15.49
CG 1557.05 ± 284.46 1585.57 ± 292.04  + 1.8 ƞ2 = 0.57 ƞ2 = 0.32
IG1MVC90 1314.7 ± 305.79 1440.61 ± 332.67  + 9.58 p < 0.001 p = 0.006
IG2MVC90 1371.8 ± 289.45 1508.44 ± 258.7  + 9.96 F = 25.908 F = 5.51
CG 1334.76 ± 235.36 1340.33 ± 205.81  + 0.42 ƞ2 = 0.28 ƞ2 = 0.14
IG1KtW 11.72 ± 2.52 12.98 ± 2.55  + 10.75 p < 0.001 p = 0.046
IG2KtW 12.26 ± 2.1 13.36 ± 2.31  + 8.97 F = 48.96 F = 3.24
CG 11.71 ± 12.17 12.17 ± 2.0  + 3.93 ƞ2 = 0.43 ƞ2 = 0.09
IG1ORT 8.35 ± 2.08 9.39 ± 1.41  + 12.46 p < 0.001 p < 0.001
IG2ORT 7.92 ± 1.637 8.64 ± 1.31  + 9.09 F = 39.37 F = 8.85
CG 8.17 ± 1.25 8.21 ± 1.03  + 0.49 ƞ2 = 0.37 ƞ2 = 0.21

IG1 stretching group, IG2 hypertrophy training group, CG control group, MVC maximal voluntary contraction, KtW ROM Measurement via knee-to-wall test, ORT range of motion measurement via goniometer of the orthosis, 180 MVC testing in extended knee joint, 90 MVC testing in flexed knee joint