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Changing Nutrition, Physical Activity and Body Weight among Student Nurses and Midwives

Effects of a Planning Intervention and Self-efficacy Beliefs

Warsaw School of Social Sciences and Humanities, Poland & University of Colorado, USA, aluszczy{at}uccs.edu

Catherine Haynes

University of Surrey, UK

The study tested if effects of a planning intervention on fruit and vegetable consumption, physical activity and body weight may be moderated by self-efficacy. Student nurses and midwives (N = 182) were randomly assigned to the planning or the control condition. The intervention included action and coping plans and was followed by two booster sessions. Follow-up took place at two months after last booster session. The intervention affected fruit and vegetable intake. Additionally, body mass index of overweight participants was reduced. Baseline self-efficacy moderated the effects of the intervention: only respondents reporting strong efficacy beliefs improved their diet and exercise.

Key Words: body mass index • fruit and vegetable • implementation intentions • obesity • physical activity • self-efficacy

Journal of Health Psychology, Vol. 14, No. 8, 1075-1084 (2009)
DOI: 10.1177/1359105309342290


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