Table 2 Mean anthropometric and body composition measures at 18y by adolescent movement behavior trajectories, Bt20+
N | BMI (kg/m2) | Waist circumference (cm) | Fat Mass Indexa (kg/m2) | Lean Massb Indexc (kg/m2) | Body fat (%) | BMI (kg/m2) | Waist circumference (cm) | Fat Mass Index (kg/m2) | Lean Mass Index (kg/m2) | Body fat (%) |
|---|---|---|---|---|---|---|---|---|---|---|
Males | Females | |||||||||
638 | 638 | 449 | 449 | 449 | 699 | 699 | 509 | 509 | 509 | |
Mean (SD) | Mean (SD) | Mean (SD) | Mean (SD) | Mean (SD) | Mean (SD) | Mean (SD) | Mean (SD) | Mean (SD) | Mean (SD) | |
Informal activity | ||||||||||
Decreasing over time | 20.4 (3.1) | 72.1 (7.3) | 2.5 (1.6) | 15.7 (1.5) | 13.4 (5.6) | 23.1 (4.6) | 75.4 (11.0) | 7.2 (3.0) | 13.1 (1.6) | 33.5 (7.0) |
Increasing over time | 19.4 (2.1) | 69.9 (5.1) | 1.9 (0.7) | 14.7 (1.0) | 11.1 (3.4) | 23.9 (4.3) | 80.1 (31.1) | 8.4 (2.8) | 13.8 (1.5) | 35.8 (6.5) |
P-value | 0.04 | 0.05 | 0.04 | 0.21 | 0.03 | 0.3 | 0.03 | 0.08 | 0.03 | 0.12 |
Organized sports participation | ||||||||||
Males | ||||||||||
Consistently low | 30.4 (3.2) | 72.1 (7.5) | 2.5 (1.6) | 15.0 (1.5) | 13.4 (5.6) | |||||
Decreasing from adequate to low | 19.8 (2.3) | 71.5 (6.4) | 2.3 (1.7) | 14.7 (1.1) | 12.6 (6.1) | |||||
Increasing from low to adequate | 20.1 (1.9) | 71.2 (5.0) | 2.2 (0.9) | 15.3 (1.4) | 12.1 (4.0) | |||||
P-value | 0.4 | 0.6 | 0.3 | 0.3 | 0.3 | |||||
Females | ||||||||||
None | 23.3 (4.7) | 76.0 (13.2) | 7.4 (3.01) | 13.1 (1.7) | 33.9 (6.9) | |||||
Consistently some | 22.3 (3.4) | 72.8 (9.1) | 6.5 (2.7) | 13.1 (1.2) | 31.1 (7.5) | |||||
P-value | 0.1 | 0.04 | 0.04 | 0.9 | 0.005 | |||||
Walking to and from school | ||||||||||
Consistently 150 min/week | 20.4 (3.1) | 72.2 (7.4) | 2.6 (1.6) | 15.1(1.5) | 13.4 (5.7) | 23.2 (4.8) | 75.8 (13.6) | 7.4 (3.2) | 13.1 (1.7) | 33.7 (7.3) |
Consistently 300 min/week | 19.9 (2.6) | 71.0 (6.1) | 2.2 (1.0) | 14.9 (1.5) | 12.1 (4.1) | 23.0 (3.7) | 75.2 (10.6) | 7.1 (2.5) | 13.2 (1.4) | 33.2 (6.2) |
P-value | 0.2 | 0.1 | 0.07 | 0.3 | 0.07 | 0.7 | 0.6 | 0.5 | 0.4 | 0.4 |
Overall physical activity d | ||||||||||
Decreasing activity over time and do not walk to school | 20.9 (3.6) | 72.3 (7.4) | 3.0 (2.2) | 15.1 (1.4) | 14.9 (7.4) | 23.6 (5.2) | 75.6 (11.7) | 7.7 (3.3) | 13.1 (1.7) | 34.7 (7.2) |
Decreasing activity over time but consistently walk to school | 20.4 (3.1) | 72.3 (7.3) | 2.5 (1.3) | 15.0 (1.6) | 13.2 (4.9) | 23.0 (4.3) | 75.7 (11.0) | 7.2 (3.0) | 13.1 (1.6) | 33.4 (6.8) |
Consistently more active and consistently walk to school | 19.3 (2.0) | 70.1 (6.0) | 2.1 (1.1) | 15.1 (1.2) | 11.7 (4.3) | 22.8 (3.9) | 75.5 (20.0) | 6.8 (2.7) | 13.2 (1.4) | 32.1 (7.1) |
P-value | 0.001 | 0.03 | 0.0002 | 0.7 | 0.0001 | 0.2 | 0.9 | 0.1 | 0.8 | 0.03 |
Sedentary behavior | ||||||||||
Males | ||||||||||
Consistently low | 20.1 (2.6) | 71.5 (6.5) | 2.5 (1.5) | 15.0 (1.5) | 13.2 (5.5) | |||||
Consistently high | 20.7 (4.4) | 72.6 (9.2) | 2.1 (0.9) | 14.7 (1.4) | 12.0 (4.4) | |||||
Increasing from low to high | 21.2 (3.8) | 74.6 (8.8) | 2.8 (1.8) | 15.3 (1.4) | 14.1 (6.3) | |||||
P-value | 0.004 | 0.001 | 0.2 | 0.3 | 0.3 | |||||
Females | ||||||||||
Initially low but increasing | 23.1 (4.5) | 75.2 (10.9) | 7.3 (3.0) | 13.1 (1.6) | 33.6 (6.9) | |||||
Consistently high | 24.3 (5.0) | 81.3 (26.7) | 7.8 (3.6) | 13.7 (1.7) | 33.9 (8.4) | |||||
P-value | 0.05 | 0.0008 | 0.4 | 0.04 | 0.8 | |||||
Schoolnight sleep | ||||||||||
≤ 8 h/night | 20.9 (3.7) | 73.3 (8.5) | 2.7 (1.7) | 15.1 (1.6) | 13.9 (5.9) | 23.3 (4.6) | 75.7 (14.0) | 7.4 (2.9) | 13.2 (1.6) | 33.8 (6.9) |
≥ 9 h/night | 20.0 (2.5) | 71.2 (6.2) | 2.4 (1.4) | 15.0 (1.4) | 12.9 (5.3) | 22.8 (4.5) | 75.4 (10.6) | 7.1 (3.2) | 13.0 (1.7) | 33.1 (7.2) |
P-value | 0.0001 | 0.0007 | 0.06 | 0.3 | 0.06 | 0.1 | 0.8 | 0.3 | 0.2 | 0.3 |