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