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*
Æž² = 0.149
Æž² = 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
Æž² = 0.044
Æž² = 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
Æž² = 0.473
Æž² = 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*
Æž² = 0.273
Æž² = 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).