Table 3.
Descriptive data on the movement behavior characteristics (min/day)
| Movement behavior characteristic | Total (n = 369) |
Least mature (n = 184) |
Most mature (n = 185) |
p for maturation comparison |
|---|---|---|---|---|
| Intensities of movement behaviors | ||||
| Sleep | 568 (541, 594) | 580 (549, 603) | 556 (535, 585) | <0.01 |
| Sedentary behavior | 572 (533, 611) | 552 (516, 596) | 589 (552, 627) | <0.01 |
| LPA | 159 (141, 182) | 164 (147, 186) | 154 (133, 176) | <0.01 |
| MPA | 48 (38, 62) | 54 (42, 70) | 45 (36, 56) | <0.01 |
| VPA | 3 (1, 6) | 4 (2, 7) | 2 (1, 4) | <0.01 |
| Types of sedentary behavior | ||||
| Homework | 21 (0, 43) | 11 (0, 21) | 21 (11, 43) | <0.01 |
| Passive travel | 39 (22, 60) | 39 (22, 62) | 39 (22, 59) | 0.10 |
| Passive curriculum time | 198 (168, 223) | 198 (170, 222) | 197 (166, 223) | 0.84 |
| TV, videos, movies | 94 (39, 154) | 77 (39, 154) | 94 (56, 171) | 0.19 |
| Sedentary video games | 60 (34, 129) | 58 (32, 116) | 60 (34, 137) | 0.45 |
| Using Internet for other purposes | 39 (30, 103) | 39 (17, 94) | 60 (30, 120) | <0.01 |
| Types of PA | ||||
| Organized sport | 17 (0, 41) | 15 (0, 34) | 20 (0, 45) | 0.16 |
| Active travel | 9 (3, 17) | 8 (3, 17) | 10 (4, 18) | 0.37 |
| Curriculum-based PA | 18 (8, 31) | 18 (9, 33) | 19 (6, 28) | 0.27 |
| Outdoor active play | 31 (16, 53) | 43 (23, 63) | 22 (13, 38) | <0.01 |
| Work and chores | 0 (0, 3) | 0 (0, 3) | 0 (0, 2) | 0.78 |
| Patterns of sleep | ||||
| Sleep efficiencya | 90 (85, 93) | 90 (86, 93) | 89 (85, 93) | 0.06 |
| Sleep midpointb | 02:46 (02:24, 03:13) | 02:33 (02:16, 03:00) | 03:00 (02:35, 03:29) | <0.01 |
| Bedtime consistency | 31 (22, 43) | 28 (21, 39) | 35 (23, 45) | <0.01 |
| Sleep duration consistency | 35 (25, 48) | 34 (24, 45) | 37 (28, 51) | 0.01 |
| Patterns of sedentary behavior | ||||
| Nonbouted sedentary behavior | 202 (179, 225) | 202 (180, 224) | 203 (176, 226) | 0.76 |
| 5–9-min sedentary bouts | 106 (95, 121) | 105 (95, 120) | 107 (96, 122) | 0.30 |
| 10–19-min sedentary bouts | 127 (111, 144) | 123 (106, 140) | 129 (116, 151) | <0.01 |
| 20–29-min sedentary bouts | 63 (48, 80) | 56 (45, 78) | 66 (52, 82) | <0.01 |
| ≥30-min sedentary bouts | 60 (40, 91) | 52 (33, 76) | 72 (46, 105) | <0.01 |
| Patterns of PA | ||||
| Bouted MVPA | 9 (3, 18) | 12 (4, 23) | 8 (3, 14) | <0.01 |
| Embedded MVPA | 25 (17, 35) | 30 (20, 38) | 23 (15, 30) | <0.01 |
| Sporadic MVPA | 15 (12, 19) | 15 (12, 18) | 16 (13, 20) | 0.14 |
| Bouted LPA | 53 (37, 72) | 61 (44, 76) | 45 (31, 62) | <0.01 |
| Sporadic LPA | 106 (94, 118) | 105 (93, 118) | 106 (94, 119) | 0.38 |
Note: Data are presented as median (25th percentile, 75th percentile).
a
sleep efficiency is presented as %.
b
sleep midpoint is presented as h:min. Abbreviations: LPA = light physical activity; MPA = moderate physical activity; PA = physical activity; MVPA = moderate-to-vigorous physical activity; TV = television; VPA = vigorous physical activity.