Table 2. Results of the outcome measures in the whole-body vibration (WBV) and non-WBV groups before and after training and comparison of the intervention effects.
| WBV group (n=14) (mean ± SD) |
Non-WBV group (n=12) (mean ± SD) |
Repeated-measures ANOVA | ||||||
|---|---|---|---|---|---|---|---|---|
| (Time × Group) | Main effect (Time) |
Main effect (Group) |
||||||
| Pre | Post | Pre | Post | p | p | p | ||
| Knee muscle strength (Nm/kg) | ||||||||
| Extension | 224.9 ± 24.3 | 226.4 ± 23.6† | 208.1 ± 36.8 | 192.3 ± 30.9 | 0.309 | 0.397 | 0.004 | |
| Flexion | 103.7 ± 11.4 | 102.5 ± 16.9† | 93.7 ± 14.8 | 87.7 ± 17.1 | 0.588 | 0.422 | 0.007 | |
| FRT (cm) | 39.1 ± 5.6 | 44.4 ± 5.1† | 38.4 ± 5.7 | 37.4 ± 5.4 | 0.055 | 0.176 | 0.018 | |
| YBT (cm) | ||||||||
| Anterior | 60.7 ± 7.0 | 60.8 ± 4.7† | 57.1 ± 5.6 | 54.6 ± 3.7 | 0.412 | 0.464 | 0.003 | |
| Posteromedial | 89.4 ± 7.3 | 93.9 ± 4.9† | 83.3 ± 8.4 | 83.6 ± 6.0 | 0.297 | 0.227 | <0.001 | |
| Posterolateral | 89.5 ± 9.0 | 93.2 ± 4.6† | 88.2 ± 8.5 | 84.9 ± 5.1 | 0.100 | 0.928 | 0.027 | |
| TUG (s) | 5.3 ± 0.9 | 4.7 ± 0.5# † | 5.6 ± 0.6 | 5.2 ± 0.5 | 0.507 | 0.022 | 0.048 | |
FRT: functional reach test; YBT: Y-balance test; TUG: Timed Up and Go test; ANOVA: analysis of variance. #p<0.05 vs. Pre-training, †p<0.05 vs. Non-WBV group.