Field experiment of a very brief worksite intervention to improve nutrition among health care workers
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Despite the potential of worksite interventions to boost productivity and save insurance costs, they tend to be costly and tested in nonrandomized trials. The aim of the present study was to test the ability of a very brief worksite intervention based on implementation intentions to improve nutrition among health care workers. Seventy-nine health care workers were randomly allocated to a control condition or to form implementation intentions using standard instructions or with a supporting tool. Fruit intake and metacognitive processing (operationalized as awareness of standards, self-monitoring and self-regulatory effort) were measured at baseline and follow-up. Participants who formed implementation intentions ate significantly more fruit and engaged in significantly more metacognitive processing at follow-up than did participants in the control condition (ds > .70). The findings support the efficacy of implementation intentions for increasing fruit intake in health care workers and preliminary support for the utility of a tool to support implementation intention formation.
KeywordsWorksite intervention Metacognition Brief intervention Health behavior change Implementation intentions Fruit intake Volitional help sheet
I would like to thank Tasos Droulias for his help with collecting and entering the data.
Conflict of interest
Christopher J. Armitage declares no conflict of interest.
Human and Animal Rights and Informed Consent
The procedures followed were in accordance with the ethical standards of the responsible committee on human experimentation (institutional and national) and with the Helsinki Declaration of 1975, as revised in 2000. Informed consent was obtained from all participants for being included in the study.
- Armitage, C. J., Abdul Rahim, W., Rowe, R., & O’Connor, R. C. (in press). An exploratory randomized trial of a simple, brief psychological intervention to reduce subsequent suicidal ideation and behaviour in patients hospitalized for self-harm. British Journal of Psychiatry. Google Scholar
- Barbeau, E. M., Wallace, L., Lederman, R., Lightman, N., Stoddard, A., & Sorensen, G. (2004). Recruiting small manufacturing worksites that employ multiethnic, low-wage workforces into a cancer prevention research trial. Preventing Chronic Disease, 1(3). Retrieved October 18, 2013 from http://www.cdc.gov/pcd/issues/2004/jul/03_0020.htm
- Cohen, J., Cohen, P., West, S. G., & Aiken, L. S. (2003). Applied multiple regression/correlation analysis for the behavioral sciences. London: Erlbaum.Google Scholar
- Gollwitzer, P. M. (1990). Action phases and mind-sets. In E. T. Higgins & R. M. Sorrentino (Eds.), The handbook of motivation and cognition: Foundations of social behavior (pp. 53–92). New York: Guilford Press.Google Scholar
- van Dongen, J. M., Proper, K. I., van Wier, M. F., van der Beek, A. J., Bongers, P. M., van Mechelen, W., & van Tulder, M. W. (2012). A systematic review of the cost-effectiveness of worksite physical activity and/or nutrition programs. Scandinavian Journal of Work, Environment & Health, 38, 393–408. doi: 10.5271/sjweh.3275 CrossRefGoogle Scholar