Table 1.
Participants’ anthropometric characteristics; sleep and PA assessments related to gender.
| Girls (n = 8) |
Boys (n = 16) |
||
|---|---|---|---|
| Demographic characteristics and questionnaires |
Age | 11.1 ± 3.9 | 10.3 ± 2.8 |
| Height (cm) | 140.6 ± 14.9 | 143.2 ± 16.0 | |
| Weight (kg) | 38.1 ± 14.7 | 35.2 ± 9.9 | |
| BMI (kg/m2) | 18.5 ± 3.8 | 16.9 ± 2.3 | |
| PAQ-C Score | 2.1 ± 0.8 | 2.6 ± 0.7 | |
| CSHQ Score | 49.9 ± 9.7 | 47.2 ± 7.2 | |
| Total time wearing of accelerometer (h) | 23.4 ± 0.5 | 23.4 ± 0.3 | |
| Sleep characteristics | Total time in bed (h) | 10.03 ± 0.96 | 9.18 ± 0.40 ** |
| Total sleep duration (h) | 7.23 ± 0.73 | 7.24 ± 0.52 | |
| Sleep efficiency (%) | 72.4 ± 6.5 | 79.0 ± 3.0 ** | |
| Bedtime resistance (min) | 11.6 ± 12.7 | 4.3 ± 3.3 | |
| Sleep latency (min) | 12.2 ± 12.3 | 14.6 ± 8.3 | |
| Wake-up time resistance (min) | 1.2 ± 2.9 | 0.8 ± 1.6 | |
| Awakening latency (min) | 15.0 ± 5.3 | 15.3 ± 6.1 | |
| WASO (min) | 128.0 ± 43.4 | 80.9 ± 20.5 ** | |
| Physical activity characteristics | Total time for PA (min) | 129.4 ± 86.5 | 338.3 ± 580.2 |
| Sedentary behavior (min) | 1276.9 ± 92.4 | 1246.5 ± 77.4 | |
| Time for MVPA (min) | 129.0 ± 86.2 | 151.8 ± 58.9 | |
| Time for moderate PA (min) | 124.0 ± 83.4 | 134.2 ± 48.2 | |
| Time for vigorous PA (min) | 4.9 ± 6.1 | 17.4 ± 15.0 ** | |
| Time for strong vigorous PA (min) | 0.4 ± 0.5 | 2.6 ± 3.3 * | |
| Daily steps number | 9363 ± 3097 | 12,369 ± 3405 ** |
Values are shown as means ± SD. Sleep efficiency = ratio of total sleep duration/total time in bed. BMI: body mass index. GPAQ: global physical activity questionnaire (the higher the value, the more active the subject). CSHQ: children’s sleep habits questionnaire. WASO: wake time after sleep onset. PA: physical activity. MVPA: moderate to vigorous physical activity. Significantly different from girls * p < 0.05 and, ** p < 0.01.