Table 5.
Time-dependent change of monopedal static balance values
| Aerobic exercise group (n=16) | Strength exercise group (n=11) | Control group (n=16) | Brunner Langer model (Interaction effect) | The comparison of the pre- and post-exercise difference values among the groups | ||||
|---|---|---|---|---|---|---|---|---|
| Before | After | Before | After | Before | After | |||
| Right leg static front-back sway (mm / sec) | 28 (19–120) | 22.5 (12–90) | 25 (18–49) | 24 (15–51) | 23.5 (12–35) | 25 (10–68) | p=0.061¥¥ | pa<0.001§§ pb=0.249 pc=0.160 |
| p<0.001** | p=0.176 | p=0.09 | ||||||
| Right leg static medio-lateral sway (mm / sec) | 33.5 (18–96) | 30.5 (14–84) | 33 (15–44) | 29 (18–45) | 31 (12–43) | 29 (13–55) | p=0.152¥ | p=0.076 |
| p=0.004** | p=0.342 | p=0.842 | ||||||
| Right leg static ellipse area (mm2) | 1069 (437–5659) | 682 (369–3549) | 915 (642–2607) | 832 (561–2360) | 180 (84–2548) | 342 (102–1988) | p=0.003¥¥ | pa=0.001§§ pb=0.088 pc=0.767 |
| p=0.015* | p=0.043* | p=0.07 | ||||||
| Right leg static perimeter (mm) | 1393.5 (913–5458) | 1215.5 (666–3958) | 1352 (890–1992) | 1163 (878–2131) | 1268 (580–1824) | 1289 (648–2437) | p=0.012¥¥ | pa=0.001§§ pb=0.574 pc=0.162 |
| p<0.001** | p=0.239 | p=0.190 | ||||||
| Left leg static front-back sway (mm / sec) | 30 (19–130) | 25 (14–89) | 33 (14–45) | 25 (15–44) | 23.5 (13–44) | 24 (14–37) | p=0.347¥ | p=0.227 |
| p=0.073 | p=0.490 | p=0.579 | ||||||
| Left leg static medio-lateral sway (mm / sec) | 35 (21–98) | 32.5 (17–103) | 33 (22–47) | 28 (20–40) | 27.5 (14–51) | 28 (15–52) | p=0.196¥ | p=0.263 |
| p=0.009** | p=0.266 | p=0.560 | ||||||
| Left leg static ellipse area (mm2) | 1384.5 (710–11886) | 842 (330–7686) | 1086 (545–2045) | 905 (507–3166) | 704.5 (246–1873) | 1133 (359–1624) | p<0.001¥¥ | pa=0.002§§ pb=0.405 pc=0.301 |
| p=0.004** | p=0.165 | p=0.005** | ||||||
| Left leg static perimeter (mm) | 1517 (925–5358) | 1263 (734–4172) | 1443 (828–2133) | 1224 (804–1689) | 1145 (636–2148) | 1256 (677–2059) | p=0.265¥ | p=0.201 |
| p=0.009** | p=0.333 | p=0.551 | ||||||
Values are expressed as median (minimum – maximum)
pa: Control × Aerobic, pb: Control × Strength, pc: Aerobic × Strength.
: Brunner Langer model analysis, p>0.10 indicates that there is no interaction between the independent variables.
: Brunner Langer model analysis, p<0.10 indicates an interaction between the independent variables (since the interaction was significant, additional analyses were done. Initially, the differences between pre– and post-exercise values were analyzed with Brunner Langer model analysis in each group, the differences between the first and last measurements among the groups were analyzed with the Kruskal-Wallis Test).
: p<0.05,
: p<0.01 (significant differences between pre- and post-exercise values within each group).
: p<0.01 (significant differences between pre- and post-exercise values within each group).