Table 3.
Comparison of joint mobility among normal-weight, overweight and obese girls.
| Groups | |||
|---|---|---|---|
| Variables | Normal-Weight (n = 78) | Overweight (n = 51) | Obese (n = 22) |
| Dorsiflexion of the fifth metacarpophalangeal joint (Right arm) (degrees) | 77.7 ± 15.9 | 81.8 ± 16.9 | 77.5 ± 17.2 |
| Dorsiflexion of the fifth metacarpophalangeal joint (Left arm) (degrees) | 80.9 ± 15.8 | 86.6 ± 15.2 | 83.6 ± 15.7 |
| Hyperextension of the elbow (Right arm) (degrees) | 8.1 ± 6.8 | 11.2 ± 6.3 * | 8.8 ± 5.7 |
| Hyperextension of the elbow (Left arm) (degrees) | 8.3 ± 6.8 | 11.7 ± 6.6 * | 9.8 ± 7.8 |
| Hyperextension of the knee (Right leg) (degrees) | 7.5 ± 7.4 | 6.0 ± 4.9 | 9.2 ± 6.6 |
| Hyperextension of the knee (Left leg) (degrees) | 6.9 ± 5.3 | 8.1 ± 6.1 | 11.4 ± 12.9 # |
| Apposition of the thumb to the flexor side of the forearm (Right arm) Yes No |
28 (35.9) 50 (64.1) |
27 (40.3) 24 (47.1) |
12 (54.5) 10 (45.5) |
| Apposition of the thumb to the flexor side of the forearm (Left arm) Yes No |
24 (30.8) 54 (69.2) |
28 (54.9) 22 (43.1) |
13 (59.1) 9 (40.9) |
| Forward flexion of the trunk with the knee straight and hands on the floor Yes No |
14 (17.9) 64 (82.1) |
13 (25.5) 38 (74.5) |
9 (40.9) 13 (59.1) |
| Beighton total score | 3.0 ± 2.2 | 4.2 ± 2.2 * | 4.3 ± 2.5 |
Data are presented as (Means ± SD) or n (%). * p < 0.05, Normal vs overweight, # p < 0.05, Overweight vs. obese (one-way ANOVA; Bonferroni post hoc test).