Table 3.
Comparison of physical activity and state of mind among adolescents of different grades (N = 4898) (Mean ± SD)
| Junior Grade 1 (n = 1652) | Junior Grade 3 (n = 1291) | Senior Grade 1 and 2 (n = 1117) | Senior Grade 3 (n = 838) | |
|---|---|---|---|---|
| Physical activity | ||||
| Moderate and vigorous (min/day) | 20.3 ± 43.4 | 22.8 ± 70.6 | 25.6 ± 45.0 | 27.3 ± 44.6** |
| Vigorous (min/day) | 9.7 ± 22.5 | 10.8 ± 25.7 | 11.1 ± 25.0 | 11.5 ± 23.9 |
| Moderate (min/day) | 12.2 ± 26.8 | 13.4 ± 25.2 | 16.6 ± 28.8 | 17.3 ± 30.1** |
| Walking (min/day) | 10.6 ± 32.1 | 12.0 ± 63.0 | 14.6 ± 32.5 | 15.8 ± 32.1** |
| Sedentary time (min/day) | 340.0 ± 143.2 | 331.8 ± 141.4 | 339.4 ± 149.0 | 374.7 ± 163.8** |
| Profile of mood states | ||||
| Tension | 3.2 ± 2.7 | 3.5 ± 2.7 | 3.2 ± 2.6 | 4.1 ± 2.8** |
| Anger | 2.7 ± 2.6 | 2.9 ± 2.6 | 3.0 ± 2.6 | 3.6 ± 2.7** |
| Fatigue | 4.1 ± 3.5 | 4.4 ± 3.9 | 4.6 ± 4.0 | 5.5 ± 4.3** |
| Depression | 2.3 ± 2.1 | 2.4 ± 2.4 | 2.5 ± 2.5 | 3.0 ± 2.7** |
| Confusion | 2.2 ± 1.8 | 2.3 ± 1.8 | 2.7 ± 1.80 | 3.0 ± 1.9** |
| Vigor | 5.6 ± 2.6 | 5.7 ± 2.5 | 5.5 ± 2.4 | 5.5 ± 2.2 |
| Self-esteem | 4.9 ± 2.0 | 5.0 ± 1.9 | 5.0 ± 1.7 | 4.9 ± 1.7 |
| Total mood disturbance | 101.6 ± 9.9 | 102.4 ± 10.7 | 103.1 ± 10.6 | 105.8 ± 11.2** |
The statistical significance among grade groups is marked with “*”.
*
Indicates p < 0.05,
**
indicates p < 0.01.