Table 2.
Intragroup analysis for all outcomes assessed in the study.
| Control (n = 15) |
ECC (n = 15) |
ECC + NMES (n = 13) |
|
|---|---|---|---|
| ISO peak torque | |||
| Pre (Nm) | 205.81 ± 52.81 | 197.71 ± 59.88 | 211.49 ± 58.68 |
| Post (Nm) | 198.95 ± 51.09 | 218.23 ± 66.02 | 227.82 ± 65.27 |
| Δ% | −3.18 ± 3.74 | 10.71 ± 8.94 | 7.82 ± 9.82 |
| Effect size | 0.14 | 0.34a | 0.27a |
| CON peak torque | |||
| Pre (Nm) | 177.09 ± 46.25 | 172.21 ± 49.21 | 182.44 ± 57.14 |
| Post (Nm) | 173.80 ± 47.96 | 178.93 ± 50.56 | 185.58 ± 55.74 |
| Δ% | −2.26 ± 5.51 | 4.22 ± 6.30 | 2.14 ± 4.42 |
| Effect size | 0.07 | 0.14 | 0.06 |
| ECC peak torque | |||
| Pre (Nm) | 212.37 ± 72.16 | 218.75 ± 65.16 | 219.22 ± 60.41 |
| Post (Nm) | 217.95 ± 72.67 | 246.13 ± 74.18 | 245.15 ± 61.55 |
| Δ% | 3.10 ± 7.62 | 12.92 ± 9.58 | 13.00 ± 11.30 |
| Effect size | 0.08 | 0.41a | 0.44a |
| Hop test | |||
| Pre (cm) | 166.33 ± 39.95 | 150.33 ± 33.29 | 156.42 ± 38.68 |
| Post (cm) | 167.47 ± 38.34 | 154.47 ± 36.20 | 162.96 ± 41.48 |
| Δ% | 0.96 ± 3.50 | 2.59 ± 3.40 | 4.01 ± 2.65 |
| Effect size | 0.03 | 0.12 | 0.17 |
| VL muscle thickness | |||
| Pre (cm) | 1.91 ± 0.40 | 2.15 ± 0.39 | 2.06 ± 0.30 |
| Post (cm) | 1.91 ± 0.39 | 2.24 ± 0.35 | 2.14 ± 0.26 |
| Δ% | 0.13 ± 1.22 | 4.48 ± 4.44 | 4.59 ± 5.72 |
| Effect size | 0.00 | 0.45a | 0.30a |
| VL pennation angle | |||
| Pre (degrees) | 13.51 ± 1.91 | 15.17 ± 1.52 | 15.05 ± 1.51 |
| Post (degrees) | 13.48 ± 1.92 | 14.96 ± 1.51 | 14.91 ± 1.54 |
| Δ% | −0.23 ± 1.01 | −1.39 ± 0.87 | −0.96 ± 0.74 |
| Effect size | 0.02 | 0.14 | 0.10 |
| VL fascicle length | |||
| Pre (cm) | 8.18 ± 1.04 | 8.56 ± 1.28 | 8.07 ± 0.99 |
| Post (cm) | 8.13 ± 0.97 | 8.94 ± 1.12 | 8.69 ± 1.07 |
| Δ% | −0.54 ± 2.65 | 4.82 ± 4.86 | 7.75 ± 5.21 |
| Effect size | 0.05 | 0.33a | 0.63b |
| RF muscle thickness | |||
| Pre (cm) | 1.75 ± 0.37 | 1.84 ± 0.38 | 1.86 ± 0.44 |
| Post (cm) | 1.75 ± 0.38 | 1.98 ± 0.36 | 2.00 ± 0.45 |
| Δ% | −0.25 ± 1.34 | 8.61 ± 8.19 | 8.33 ± 6.51 |
| Effect size | 0.00 | 0.39a | 0.33a |
| RF pennation angle | |||
| Pre (degrees) | 7.74 ± 0.83 | 8.38 ± 0.69 | 8.66 ± 0.39 |
| Post (degrees) | 7.73 ± 0.86 | 8.18 ± 0.68 | 8.52 ± 0.40 |
| Δ% | −0.11 ± 1.01 | −2.43 ± 1.08 | −1.55 ± 1.13 |
| Effect size | 0.01 | 0.30a | 0.37a |
| RF fascicle length | |||
| Pre (cm) | 11.79 ± 2.26 | 11.09 ± 2.39 | 11.27 ± 2.76 |
| Post (cm) | 11.78 ± 2.23 | 12.31 ± 2.29 | 12.56 ± 2.89 |
| Δ% | −0.07 ± 1.02 | 11.78 ± 7.14 | 11.90 ± 7.29 |
| Effect size | 0.00 | 0.54a | 0.48a |
CON, concentric; ECC, eccentric; ISO, isometric; RF, rectus femoris; VL, vastus lateralis; Δ%, percent change.
a
Small effect size.
b
Moderate effect size.