Table 2.
Pre- and post-test values as well as the results of the two-way ANOVA providing the time-effect and the time* group interaction
| Parameter | Pre-test (M ± SD) in N | Post-test (M ± SD) in N | % Pre-Post Differences | Time effect | Time * condition |
|---|---|---|---|---|---|
| FRpassive | 127.40 ± 16.95 | 130.29 ± 17.17 | +2.45 | p = 0.003 | p = 0.004* |
| SRpassive | 126.13 ± 16.95 | 130.03 ± 17.12 | +3.22 | F54.1 = 9.423 | F54.2 = 5.995 |
| CGpassive | 126.27 ± 17.86 | 125.19 ± 19.23 | -0.97* | ƞ² = 0.149 | ƞ² = 0.182 |
| FRdyn | 95.69 ± 13.05 | 93.97 ± 12.34 | -1.65 | p = 0.121 | p = 0.655 |
| SRdyn | 95.86 ± 9.00 | 93.55 ± 8.45 | -2.28 | F54.1 = 2.485 | F54.2 = 0.426 |
| CGdyn | 98.61 ± 11.18 | 97.99 ± 19.98 | -0.89 | ƞ² = 0.044 | ƞ² = 0.016 |
| FRballistic | 124.80 ± 15.31 | 120.08 ± 15.91 | -3.83 | p < 0.001 | p = 0.248 |
| SRballistic | 125.92 ± 13.76 | 120.20 ± 14.82 | -4.59 | F54.1 = 48.564 | F54.2 = 1.43 |
| CGballistic | 124.08 ± 13.34 | 121.01 ± 14.43 | -2.53 | ƞ² = 0.473 | ƞ² = 0.05 |
| FRKtW | 10.87 ± 2.99 | 11.37 ± 2.86 | +5.15 | p < 0.001 | p < 0.001* |
| SRKtW | 10.83 ± 3.12 | 11.40 ± 3.00 | +5.84 | F54.1 = 20.256 | F54.2 = 8.416 |
| CGKtW | 11.04 ± 3.00 | 10.95 ± 2.89 | -0.61* | ƞ² = 0.273 | ƞ² = 0.238 |
FR=foam rolling, SR=sham rolling, CG=control group, passive=passive ROM testing in the hip flexor, dyn=active dynamic hip flexor ROM testing, ballistic=ballistic hip flexor ROM testing, KtW=knee to wall test to evaluate the ankle joint ROM.
Asterisks (*) illustrate a time * group interaction significant difference between the control condition versus the other two intervention conditions (FR and SR).