Table 3.
Physical activity meanings and motivation at baseline and follow-up.
| Controla |
Interventiona |
Significancec |
|||
|---|---|---|---|---|---|
| Baseline | Follow-up | Baseline | Follow-up | β, p-value | |
| Level of Physical Activityb | |||||
| High | 1.32 (1.99) | 1.30 (2.23) | 1.27 (2.17) | 1.33 (1.96) | n.s. |
| Moderate | 3.58 (3.52) | 2.84 (2.93) | 3.45 (3.94) | 2.47 (2.59) | n.s. |
| Light | 29.10 (4.06) | 29.86 (3.78) | 29.27 (4.40) | 30.20 (3.39) | n.s. |
| TV/Video Games/Internet | 3.29 (2.88) | 3.79 (3.27) | 3.82 (3.47) | 3.44 (3.37) | −0.27, p<0.05 |
| Total Energy Expenditure (Kcals) | 8.12 (0.02) | 8.14 (0.02) | 8.09 (0.03) | 8.13 (0.03) | n.s. |
| Measures of BMI and Body Fat | |||||
| BMI Percentile | 62.62 (2.06) | 64.09 (2.01) | 66.44 (2.90) | 66.85 (2.80) | n.s. |
| BMI Z Scores | 0.49 (0.09) | 0.54 (0.09) | 0.59 (0.12) | 0.62 (0.11) | n.s. |
| % Body Fat | 27.27 (0.99) | 27.40 (0.91) | 28.46(1.24) | 28.67 (1.19) | n.s. |
| Meanings of physical activity | |||||
| Personal | 1.27 (0.06) | 1.20 (0.06) | 1.16 (0.08) | 1.20 (0.08) | n.s. |
| Social | 1.73 (0.05) | 1.60 (0.05) | 1.60 (0.07) | 1.48 (0.07) | n.s. |
| Functional | 1.39 (0.07) | 1.31 (0.07) | 1.19 (0.09) | 1.16 (0.09) | n.s. |
| Fantasy | 2.09 (0.08) | 1.93 (0.08) | 2.07 (0.09) | 1.90 (0.09) | n.s. |
| Motivation for physical activity | |||||
| External regulation | 0.36 (0.04) | 0.44 (0.04) | 0.30 (0.06) | 0.41 (0.06) | n.s. |
| Introjected | 0.62 (0.05) | 0.60 (0.05) | 0.61 (0.06) | 0.62 (0.06) | n.s. |
| Identified | 1.23 (0.06) | 1.17 (0.06) | 1.20 (0.07) | 1.21 (0.08) | n.s. |
| Intrinsic | 1.24 (0.06) | 1.18 (0.06) | 1.11 (0.070) | 1.16 (0.07) | 0.11, p<0.05 |
| Relative Autonomy Index | 2.39 (0.23) | 2.11 (0.23) | 2.29 (0.27) | 2.13 (0.26) | n.s. |
Note. All parameters adjusted for baseline age (except body mass index, BMI percentile and z scores) and ethnicity.
a
Mean (standard error, SE).
b
Physical activity reported in ½ hour blocks.
c
n.s.=not signigicant.