TABLE 4.
Mean values and SD of peak torque, average peak torque and total work for knee extensors – before and after a 4-week vibration training (angular velocity 240°/s) and mean values, SD and 95%CI (CI-confidence interval) for individual differences (Diff.).
| Measurement | Group I | Group II | Group III | Group IV | Group V | Group VI | Group VII |
|---|---|---|---|---|---|---|---|
| Peak torque [Nm/kg] | |||||||
| before | 2.1±0.6 | 2.15±0.26 | 2.17±0.3 | 1.97±0.6 | 1.88±0.28 | 2.4±0.4 | 2.34±0.2 |
| after | 2.31±0.33 | 2.16±0.37 | 2.04±0.3 | 2.03±0.55 | 2.09±0.15 | 2.24±0.3 | 2.26±0.18 |
| Diff. | 0.22±0.47 (-0.3÷0.47) |
0.01±0.18 (-0.11÷0.12) |
-0.13±0.28 (-0.27÷0.02) |
0.06±0.24 (-0.11÷0.22) |
0.21±0.24 (-0.04÷0.37) |
-0.16±0.39 (-0.44÷0.12) |
-0.08±0.23 (-0.21÷0.06) |
| ES | 0.434 | 0.031 | 0.433 | 0.104 | 0.935* | 0.453 | 0.42 |
| Average peak torque [Nm/kg] | |||||||
| before | 1.47±0.33 | 1.41±0.22 | 1.41±0.18 | 1.37±0.41 | 1.34±0.25 | 1.5±0.21 | 1.45±0.14 |
| after | 1.59±0.2 | 1.42±0.18 | 1.34±0.12 | 1.36±0.28 | 1.44±0.17 | 1.45±0.22 | 1.49±0.11 |
| Diff. | 0.12±0.23 (-0.01÷0.24) |
0.01±0.16 (-0.1÷0.11) |
-0.07±0.16 (-0.15÷0.1) |
0.01±0.17 (-0.12÷0.11) |
0.1±0.22 (-0.06÷0.25) |
-0.05±0.21 (-0.2÷0.1) |
0.04±0.1 (-0.02÷0.09) |
| ES | 0.44 | 0.05 | 0.457* | 0.03 | 0.467 | 0.232 | 0.318 |
| Total work [J/kg] | |||||||
| before | 30.17±8.5 | 29.24±5.52 | 27.64±5.45 | 26.81±8.59 | 26.15±6.1 | 31.33±5.65 | 32.37±4.12 |
| after | 33.33±4.57 | 30.73±5.18 | 28.61±4.84 | 29.79±7.99 | 28.82±6.07 | 30.62±6.5 | 34.96±3.59 |
| Diff. | 3.17±5.88 (0.35÷6.3) |
1.5±3.51 (-0.74÷3.72) |
0.98±4.74 (-1.61÷3.56) |
2.97±3.21 (0.67÷5.27) |
2.67±4.94 (-0.86÷6.21) |
-0.72±4.21 (-3.73÷2.29) |
2.59±2.35 (1.23÷3.94) |
| ES | 0.463* | 0.278 | 0.188 | 0.359* | 0.439 | 0.117 | 0.67* |
*
– p<0.0.5; Wilcoxon matched pairs test, ES – effect size.