Table 2.
Comparison of brain activity and motor and cognitive function in high-span group and low-span group.
| Low-span group | High-span group | |||||||
|---|---|---|---|---|---|---|---|---|
| S-S task | O-S task | S-D task | O-D task | S-S task | O-S task | S-D task | O-D task | |
| SMAa,b,c | 0.06 ± 0.57 | 0.06 ± 0.67 | 0.22 ± 0.41 | 0.09 ± 0.45 | −0.06 ± 0.31 | 0.55 ± 0.84∗ | 0.08 ± 0.52 | 0.96 ± 0.66†∗ |
| PMC (right) | −0.01 ± 0.51 | 0.06 ± 0.71 | 0.18 ± 0.41 | 0.15 ± 0.81 | 0.03 ± 0.33 | 0.05 ± 0.94 | 0.38 ± 1.75 | 0.34 ± 0.85 |
| PMC (left) | −0.04 ± 0.57 | 0.37 ± 2.03 | 0.07 ± 0.55 | 0.20 ± 0.76 | −0.08 ± 0.42 | 0.35 ± 1.18 | −0.08 ± 0.41 | 0.35 ± 1.17 |
| DLPFC (right)c | 0.11 ± 1.23 | 0.53 ± 0.81 | 0.55 ± 1.44 | 0.60 ± 1.29 | 0.31 ± 1.58 | 0.23 ± 1.70 | 0.35 ± 1.21 | 2.00 ± 1.78† |
| DLPFC (left) | −0.11 ± 0.58 | 0.39 ± 0.64 | 0.37 ± 1.16 | 0.24 ± 0.75 | 0.13 ± 1.51 | 0.76 ± 1.88 | 0.39 ± 0.94 | 1.17 ± 1.41 |
| Sway path length (cm)b,c | 68.3 ± 12.6 | 74.2 ± 14.0† | 72.0 ± 10.8 | 94.0 ± 14.0† | 71.3 ± 9.8 | 72.5 ± 9.7 | 74.9 ± 14.1 | 83.9 ± 7.60†∗ |
|
| ||||||||
| Two-way repeated measures analysis of variance | ||||||||
| Stroop test (number of correct answers) |
19.8 ± 0.44 (sitting) | 19.8 ± 0.4 | 19.6 ± 0.71 | 19.9 ± 0.27 (sitting) | 19.8 ± 0.37 | 19.7 ± 0.63 | ||
S-S task: standing during a single task, O-S task: one leg standing during a single task, S-D task: standing during a dual-task, and O-D task: one leg standing during a dual-task.
(ES: mean ± S.D.)
aSignificant main effect of group (p < 0.05), bsignificant different group interaction (p < 0.01), csignificant main effect of condition (p < 0.05),∗significant different low-span group (p < 0.05), and †significant different S-S task.