Changes in cognitive measures in a randomized controlled trial of a health promotion program for couples targeting diet and physical activity.
PURPOSE: To examine cognitive responses to a 4-month health promotion program targeting diet and physical activity in recently cohabiting couples. DESIGN: A three-group randomized controlled trial: no intervention (Controls), interactive group sessions and mail-outs (Interactive), and one group session followed by mail-outs (Mail). SETTING: Australian research studies unit. SUBJECTS: Seventy-eight of 137 couples cohabiting for < 2 years, recruited by advertising, completed the study. MEASURES: Stages of change; health beliefs; self-efficacy; and perceived barriers to change evaluated by questionnaires at baseline, postintervention, and 1-year follow-up. Data were analyzed using mixed models, factor analysis, and linear regression. RESULTS: In the Mail group, the perceived importance of barriers to dietary change decreased by 19% at postintervention and 16% at 1-year follow-up; dietary self-efficacy increased by 9% and 3%, respectively. In the Interactive group, the perceived importance of barriers to dietary change decreased by 26% and 20%, and dietary self-efficacy increased by 14% and 12%, respectively. Similar trends for physical activity were not statistically significant. However, changes in self-efficacy and perceived barriers to change significantly predicted dietary and physical activity behaviors. A preponderance of higher socio-economic groups and the proportion of drop-out may have biased results. CONCLUSIONS: Health promotion using partners' support and targeting diet and physical activity improves associated cognitive variables in couples. Most improvements were greater and more sustained with interactive group sessions.[1]References
- Changes in cognitive measures in a randomized controlled trial of a health promotion program for couples targeting diet and physical activity. Burke, V., Giangiulio, N., Gillam, H.F., Beilin, L.J., Houghton, S. American journal of health promotion : AJHP. (2004) [Pubmed]
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