Behavioral and Psychological Factors Associated with 12-Month Weight Change in a Physical Activity Trial
Examining behavioral and psychological factors relating to weight stability over a 1-year period is of public health importance. We conducted a physical activity (PA) intervention trial for women (N=247; mean age=47.5±10.7; mean BMI=28.6±5.3) in which participants were assigned to one of three grou...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2011-01-01
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| Series: | Journal of Obesity |
| Online Access: | http://dx.doi.org/10.1155/2011/515803 |
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| Summary: | Examining behavioral and psychological factors relating to weight stability over a 1-year period is of public health importance. We conducted a physical activity (PA) intervention trial for women (N=247; mean age=47.5±10.7; mean BMI=28.6±5.3) in which participants were assigned to one of three groups (two PA and one contact-control). By Month 12, participants achieved 140.4±14.82 min of PA/week, with no group differences. Weight status change from baseline to Month 12 was categorized: no change (N=154; 62.4%); increase (N=34; 13.8%); decrease (N=59; 23.9%). Discriminant function analyses indentified two statistically significant dimensions associated with weight change. Dimension 1 was positively weighted by mood (0.73) and self-efficacy (0.79); dimension 2 was positively weighted to change in physical activity (0.58) and fat consumption (0.55). Results provide further evidence for the importance of behavior in long-term weight maintenance, particularly physical activity and dietary fat. These findings also provide evidence for the importance of addressing psychosocial variables, in particular depressed mood and self-efficacy. |
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| ISSN: | 2090-0708 2090-0716 |