Abstract
Background
This study assessed the effect of a 1-year internet-based weight loss intervention for men.
Methods
Four hundred forty-one overweight and obese men were randomized to intervention or delayed treatment. Participants completed a Web-based assessment of diet and physical activity behaviors and weekly tailored Web modules addressing weight-related behaviors.
Results
At 12 months compared to controls, intervention men decreased percent of energy from saturated fat and increased grams of fiber and fruit/vegetable servings per 1.000 kcal (p values < 0.001) and walked 16 min more per day (p < 0.05). No between-group differences in body mass index (BMI), weight, or waist circumference were seen, but among completers, men in the highest tertile of intervention participation had lower weight (98.74 vs. 102.37 kg), BMI (32.38 vs. 33.46), and waist circumference (42.17 vs. 43.47 cm) compared to men who participated less often.
Conclusions
The intervention improved diet and activity behaviors, but weight loss occurred only for those with the highest adherence.
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Acknowledgments
This study was supported by the NIH/NCI (RO1 R01 CA098861). The authors wish to thank Drs. John Foreyt and Garry Eggers for their consultation on the intervention and design of this study. Also, the authors wish to acknowledge Kara Mareci for her contributions to the execution of this study. All human studies have been approved by the UCSD and SDSU IRBs and have therefore been performed in accordance with the ethical standards laid down in the 1964 Declaration of Helsinki. All persons gave their informed consent prior to their inclusion in the study.
Conflict of Interest
Drs. Patrick, Calfas, and Sallis are co-owners of Santech, Inc. (San Diego, CA) which is developing products related to the research described in this paper. The terms of this arrangement have been reviewed and approved by San Diego State University and the University of California, San Diego, in accordance with their respective conflict of interest policies.
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Patrick, K., Calfas, K.J., Norman, G.J. et al. Outcomes of a 12-Month Web-Based Intervention for Overweight and Obese Men. ann. behav. med. 42, 391–401 (2011). https://doi.org/10.1007/s12160-011-9296-7
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DOI: https://doi.org/10.1007/s12160-011-9296-7