Table 3.
Performance variables before and after 8 weeks of training in the three groups
| Outcomes | WV (n = 15) | WBV (n = 17) | WBV + WV (n = 19) | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Pre-test | Post-test | Mean difference ± 95%CI |
Pre-test | Post-test | Mean difference ± 95%CI | Pre-test | Post-test | Mean difference ± 95%CI |
p -value between 3 groups | |
| Muscle strength (kg) | 73.7 ± 31.0 | 90.9 ± 46.5 | 17.2 ± 12.0* | 78.3 ± 25.4 | 97.4 ± 27.4 | 19.1 ± 7.0* | 82.9 ± 30.0 | 102.3 ± 34.6 | 19.4 ± 5.8* | 0.913 |
| Single leg stance (s) | 90.3 ± 87.0 | 115.0 ± 105.9 | 24.7 ± 50.6 | 92.6 ± 84.2 | 102.9 ± 61.3 | 10.3 ± 31.4 | 71.6 ± 54.6 | 96.7 ± 62.5 | 25.1 ± 10.8* | 0.731 |
| Timed up and go (s) | 7.9 ± 1.6 | 7.1 ± 1.2 | − 0.7 ± 0.4*,a | 7.2 ± 1.0 | 6.6 ± 0.9 | −0.6 ± 0.2*,b | 8.2 ± 1.8 | 6.7 ± 0.9 | − 1.4 ± 0.6*,a, b | 0.043* |
Data are mean ± SD for pre-test and post-test and mean ± 95% confidence interval for post-pre test change
WV weighted vest (10% of body weight), WBV whole body vibration, WBV + WV whole body vibration combined with weighted vest (10% of body weight)
*Significant difference compared within group (pre vs post), p < 0.05
aSignificant difference compared between WV and WBV + WV
bSignificant difference compared between WBV and WBV + WV, p < 0.05