Table 2.
Correlations among MVPA, sleep quality, and executive functions.
| Mean | SD | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. MVPA (mins) | 87.34 | 38.25 | – | |||||||||||||
| 2. SL (mins) | 20.29 | 12.34 | −0.53** | – | ||||||||||||
| 3. SE (%) | 78.62 | 0.06 | −0.40 | −0.143 | – | |||||||||||
| 4. TST (mins) | 408.03 | 30.66 | −0.13 | 0.07 | 0.75** | – | ||||||||||
| 5. WASO (mins) | 92.98 | 38.00 | 0.20 | −0.17 | −0.94** | −0.68** | – | |||||||||
| 6. C-ACC (%) | 0.975 | 0.058 | −0.01 | −0.03 | −0.09 | −0.03 | 0.10 | – | ||||||||
| 7. IC-ACC (%) | 0.933 | 0.148 | −0.10 | 0.12 | −0.21 | −0.07 | 0.18 | 0.66** | – | |||||||
| 8. C-RT (sec) | 853.98 | 370.27 | −0.04 | −0.09 | 0.02 | 0.05 | 0.02 | −0.09 | −0.30* | – | ||||||
| 9. IC-RT (Sec) | 1,046.29 | 502.35 | −0.03 | −0.05 | −0.003 | −0.05 | 0.007 | −0.28* | −0.39* | 0.86* | – | |||||
| 10. WM (total) | 27.82 | 3.40 | 0.48** | −0.53** | −0.05 | −0.23 | 0.19 | −0.04 | −0.08 | −0.02 | 0.03 | – | ||||
| 11. CF-error A | 2.16 | 2.14 | 0.12 | 0.07 | −0.03 | −0.03 | 0.005 | −0.19 | −0.18 | 0.31* | 0.35** | −0.20 | – | |||
| 12. CF-CTA (sec) | 134,526.35 | 56,382.68 | 0.06 | 0.12 | −0.17 | −0.11 | 0.13 | −0.13 | −0.22 | 0.52** | 0.57** | −0.03 | 0.59** | – | ||
| 13. CF-error B | 5.22 | 4.58 | −0.52** | 0.63** | 0.05 | 0.20 | −0.22 | −0.20 | −0.21 | 0.15 | 0.20 | −0.50** | 0.09 | 0.27* | – | |
| 14. CF-CTB (sec) | 222,304.38 | 11,2997.68 | −0.03 | 0.11 | −0.13 | 0.003 | 0.12 | −0.10 | −0.22 | 0.54** | 0.54** | −0.14 | 0.35** | 0.70** | 0.47** | – |
*
p < 0.05 and
**
p < 0.01.
MVPA, moderate-to-vigorous physical activity; SL, sleep latency; SE, sleep efficiency; TST, total sleep time; C-ACC, accuracy rate in the congruent condition; IC-ACC, accuracy rate in the incongruent condition; C-RT, reaction time in the congruent condition; IC-RT, reaction time in the incongruent condition; WM, total scores of working memory; CF-error A, errors of part A of cognitive flexibility; CF-CTA, completion time of part A of cognitive flexibility; CF-error B, errors of part B in the cognitive flexibility; CF-CTB, completion time of part B of cognitive flexibility.