Table 3.
Mean (SD) of groups at baseline and follow-up, percentage change within groups, and between-group comparison at follow-up on the outcome variables
| Balance group (n = 10) | Control group (n = 13) | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Pre | Post | ∆% | p a | Pre | Post | ∆% | p a | p b | |
| Timed Up & Go (s) | 6.12 ± 0.54 | 5.72 ± 0.62a | −6.53 | 0.03 | 5.89 ± 0.80 | 5.83 ± 0.72 | −1.00 | 0.70 | 0.16 |
| 30-s chair stand test (rep) | 18.60 ± 5.60 | 20.10 ± 4.43 | +8.06 | 0.22 | 19.38 ± 4.07 | 18.38 ± 3.01 | −5.16 | 0.34 | 0.13 |
| 6-min walking test (m)b | 514.41 ± 60.35 | 530.89 ± 51.95 | +3.20 | 0.06 | 532.14 ± 53.13 | 503.04 ± 50.56a | −5.47 | <0.01 | <0.01 |
| PT60 (Nm)b | 83.32 ± 21.79 | 89.10 ± 15.28 | +6.94 | 0.08 | 86.61 ± 9.24 | 83.53 ± 9.49 | −3.56 | 0.27 | 0.04 |
| PT180 (Nm)b | 56.45 ± 12.69 | 62.31 ± 11.58a | +10.38 | 0.02 | 53.47 ± 5.88 | 52.91 ± 6.32 | −1.05 | 0.79 | 0.05 |
| COPap (cm) | 2.47 ± 0.82 | 0.93 ± 2.04a | −62.34 | <0.01 | 1.93 ± 0.40 | 0.96 ± 1.47a | −50.25 | <0.01 | 0.02 |
| COPml (cm)b | 0.96 ± 0.39 | 0.82 ± 0.27a | −14.60 | 0.06 | 0.75 ± 0.21 | 0.84 ± 0.30 | +12.00 | 0.16 | 0.02 |
| COPvel (cm/s)b | 1.41 ± 0.58 | 1.18 ± 0.46 | −16.31 | 0.19 | 1.18 ± 0.38 | 2.04 ± 0.71a | +72.88 | <0.001 | <0.01 |
PT60 peak torque at 60°/s, PT180 peak torque at 180°/s, COPap center of pressure oscillation along anterior/posterior axis, COPml center of pressure oscillation along medial/lateral axis, COPvel average speed of displacement
a p values for within group comparisons (p < 0.05)
b p values for group × time interaction (p < 0.05)