Variables | Groups | p value | ||||||
---|---|---|---|---|---|---|---|---|
RTF | PXT | |||||||
Pre-intervention | Post-intervention | Pre-intervention | Post-intervention | Time Main Effect | Group Main Effect | Group ×  Time Interaction | ||
Mean muscle activity, % Peak RMS | ||||||||
 VM | Eccentric | 0.91 ± 0.16 | 0.97 ± 0.14 | 0.93 ± 0.12 | 0.95 ± 0.09 | .122 | .954 | .540 |
Concentric | 1.23 ± 0.17 | 1.22 ± 0.15 | 1.18 ± 0.19 | 1.18 ± 0.20 | .913 | .650 | .973 | |
 VL | Eccentric | 0.94 ± 0.15 | 1.00 ± 0.12 | 0.95 ± 0.09 | 1.00 ± 0.09 | .051 | .831 | .732 |
Concentric | 1.17 ± 0.18 | 1.14 ± 0.17 | 1.13 ± 0.21 | 1.10 ± 0.20 | .112 | .670 | .898 | |
 Gmed | Eccentric | .077 ± 0.09 | 0.84 ± 0.12a | 0.75 ± 0.07 | 0.80 ± 0.13 | .005* | .554 | .507 |
Concentric | 1.26 ± 0.06 | 1.20 ± 0.13 | 1.26 ± 0.06 | 1.26 ± 0.06 | .277 | .446 | .384 | |
 TFL | Eccentric | 1.01 ± 0.07 | 1.02 ± 0.06 | 1.04 ± 0.06 | 1.06 ± 0.07 | .477 | .288 | .890 |
Concentric | 1.02 ± 0.16 | 1.01 ± 0.10 | 1.00 ± 0.14 | 0.97 ± 0.15 | .443 | .658 | .810 | |
 VM:VL Ratio | Eccentric | 0.97 ± 0.07 | 0.97 ± 0.05 | 0.97 ± 0.07 | 0.95 ± 0.08 | .345 | .696 | .666 |
Concentric | 1.06 ± 0.07 | 1.08 ± 0.06 | 1.05 ± 0.07 | 1.09 ± 0.10 | .132 | .966 | .658 | |
 Gmed:TFL Ratio | Eccentric | 0.75 ± 0.08 | 0.82 ± 0.11 | 0.72 ± 0.05 | 0.75 ± 0.11 | .057 | .198 | .546 |
Concentric | 1.27 ± 0.25 | 1.20 ± 0.19 | 1.29 ± 0.19 | 1.31 ± 0.21 | .605 | .526 | .207 | |
Onset timing, ms | ||||||||
 VM | 124.87 ± 177.58 | 108.34 ± 184.79 | 135.62 ± 104.09 | 89.87 ± 84.07 | .130 | .517 | .405 | |
 VL | 221.87 ± 232.08 | 191.01 ± 200.05 | 190.37 ± 77.23 | 119.87 ± 92.67 | .985 | .190 | .426 | |
 Gmed | 132.75 ± 238.46 | 35.50 ± 54.80 | 85.12 ± 141.215 | 37.25 ± 59.22 | .073 | .715 | .521 | |
 TFL | 144.01 ± 176.68 | 30.62 ± 28.50 | 52.62 ± 31.62 | 88.01 ± 93.80 | .256 | .671 | .070 |