Table 2.
Longitudinal Mean (Standard Deviation) Adiposity, Physical Activity, Sedentary Behavior, and Diet Quality
| Boys | |||
|---|---|---|---|
| Fifth grade (n = 297) | Sixth grade (n = 252) | Seventh grade (n = 227) | |
| Height, cm | 145.6 (6.5) | 150.8 (7.5) | 158.2 (8.4) |
| Weight, kg | 44.5 (12.6) | 49.3 (13.9) | 55.3 (15.9) |
| BMI, kg/m2 | 20.7 (4.8) | 21.4 (4.8) | 21.8 (5.1) |
| PBF (%) | 23.3 (9.5) | 21.8 (9.5) | 20.9 (9.8) |
| Fat mass, kg | 11.4 (8.3) | 11.6 (9.1) | 12.1 (10.2) |
| FMI, kg/m2 | 5.2 (3.5) | 5.0 (3.7) | 4.7 (3.8) |
| MVPA, min/h | 3.7 (2.1) | 3.4 (1.8) | 3.3 (2.0) |
| Sedentary, min/h | 31.0 (4.2) | 34.1 (4.1) | 35.9 (4.1) |
| Diet quality | 29.8 (5.5) | 28.5 (6.0) | 29.0 (5.5) |
| Girls | |||
|---|---|---|---|
| Fifth grade (n = 361) | Sixth grade (n = 299) | Seventh grade (n = 283) | |
| Height, cm | 148.0 (8.1) | 153.2 (7.6) | 157.6 (7.0) |
| Weight, kg | 47.2 (13.0) | 52.2 (14.3) | 57.5 (15.4) |
| BMI, kg/m2 | 21.3 (4.8) | 22.1 (5.2) | 23.0 (5.6) |
| PBF (%) | 27.4 (8.0) | 27.8 (9.7) | 29.1 (9.4) |
| Fat mass, kg | 14.6 (8.8) | 15.8 (9.7) | 18.1 (10.7) |
| FMI, kg/m2 | 6.6 (3.7) | 6.6 (3.9) | 7.2 (4.1) |
| MVPA, min/h | 2.2 (1.2) | 1.9 (1.0) | 1.8 (1.1) |
| Sedentary, min/h | 32.8 (4.4) | 37.0 (4.5) | 38.8 (4.4) |
| Diet quality | 30.3 (5.4) | 29.5 (5.6) | 29.2 (6.0) |
FMI, fat mass index; MVPA, moderate-to-vigorous physical activity; PBF, percent body fat.