Mediation of Adult Fruit and Vegetable Consumption in the National 5 A Day for Better Health Community Studies

Campbell, Marci K.; McLerran, Dale; Turner‐McGrievy, Gabrielle; Feng, Ziding; Havas, Stephen; Sorensen, Glorian; Buller, David B.; Beresford, Shirley A.A.; Nebeling, Linda

doi:10.1007/s12160-007-9002-y

Cited by 37 publications

(20 citation statements)

References 33 publications

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“…Our results replicate the mediating effects of self-efficacy on F&V intake and fat restriction found at 1-year follow-up [35] and extend these findings by suggesting that change in self-efficacy may play an important role in the durability of dietary gains. Our findings are also consistent with those of prior intervention trials that found support for the mediating effect of behaviorspecific self-efficacy on F&V intake in community-dwelling adults [40][41][42]. The present results in combination with prior research largely support the prediction derived from Social Cognitive Theory that confidence in one's ability to perform a behavior will play a critical role in health behavior change [33,34].…”

Section: Discussionsupporting

confidence: 91%

“…Our results replicate the mediating effects of self‐efficacy on F&V intake and fat restriction found at 1‐year follow‐up and extend these findings by suggesting that change in self‐efficacy may play an important role in the durability of dietary gains. Our findings are also consistent with those of prior intervention trials that found support for the mediating effect of behavior‐specific self‐efficacy on F&V intake in community‐dwelling adults .…”

Section: Discussionsupporting

confidence: 90%

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Long‐term outcomes of the FRESH START trial: exploring the role of self‐efficacy in cancer survivors' maintenance of dietary practices and physical activity

et al. 2012

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Objective This study examined whether changes in self-efficacy explain the effects of a mailed print intervention on long-term dietary practices of breast and prostate cancer survivors. The relationship between change in self-efficacy and long-term physical activity (PA) also was examined. Methods Breast and prostate cancer survivors (N=543) from 39 U.S. states and two Canadian provinces participated in the FRESH START intervention trial. Participants were randomly assigned to receive a 10-month program of mailed print materials on diet and PA available in the public domain or a 10-month program of tailored materials designed to increase fruit and vegetable (F&V) intake, decrease fat intake, and/or increase PA. Changes in self-efficacy for F&V intake and fat restriction were analyzed as potential mediators of the intervention’s effects on diet at 2-year follow-up. Because we previously found that change in self-efficacy for PA did not vary by group assignment, the relationship between change in self-efficacy and PA at 2-year follow-up was examined across study conditions. Results Results suggest that change in self-efficacy for fat restriction partially explained the intervention’s effect on fat intake (mean indirect effect=-.28), and change in self-efficacy for F&V consumption partially explained the intervention’s effect on daily F&V intake (mean indirect effect=.11). Change in self-efficacy for fat restriction partially accounted for the intervention’s impact on overall diet quality among men only (mean indirect effect=.60). Finally, change in self-efficacy for PA predicted PA at 2-year follow-up. Conclusions Findings suggest that self-efficacy may influence long-term maintenance of healthy lifestyle practices among cancer survivors.

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Section: Discussionsupporting

confidence: 91%

Section: Discussionsupporting

confidence: 90%

Long‐term outcomes of the FRESH START trial: exploring the role of self‐efficacy in cancer survivors' maintenance of dietary practices and physical activity

et al. 2012

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“…The clinical significance of this study is strongest in relation to the findings of participants' increased readiness to make changes to both F&V and fat intake, relative to controls. Many recent studies have shown that greater readiness to change relates directly to change in dietary behaviors (Campbell et al, 2008;Di Noia, Schinke, Prochaska, & Contento, 2006;Henry, Reimer, Smith, & Reicks, 2006;Nitzke et al, 2007;Robinson et al, 2008) and is often a first step toward making difficult behavioral changes. Thus, although we found only a modest increase in fruit and vegetable consumption, we posit that a program that increases participants' motivation is an important addition to the relatively sparse offerings in online nutrition education available to university students (Cousineau et al, 2004).…”

Section: Discussionmentioning

confidence: 99%

Motivation, self-efficacy, physical activity and nutrition in college students: Randomized controlled trial of an internet-based education program

Franko

Cousineau

Trant

et al. 2008

Preventive Medicine

133

162

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“…These studies resulted in significant improvements in fruit and vegetable consumption, with an average effect size of 0.3-0.5 servings of fruits and vegetables per day. Subsequent analyses of the 5-a-day studies conducted among adults demonstrated that improvements in knowledge and self-efficacy were significant mediators of the observed increases in fruit and vegetable intake (Campbell et al, 2008). Similar research has also been conducted in Europe.…”

Section: Evidence For Efficacy and Effectiveness: Influencing Dietmentioning

confidence: 99%

Healthy eating strategies in the workplace

Quintiliani

Poulsen

Sorensen

2010

International Journal of Workplace Health Management

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Purpose There is a clear link between dietary behavior and a range of chronic diseases, and overweight and obesity constitute an indirect risk in relation to these diseases. The worksite is a central venue for influencing dietary behavior. The purpose of this paper is to provide an overview of workplace influences on worker dietary patterns. Design/methodology/approach The paper reviews the evidence of the effectiveness of dietary health promotion, and provides a brief overview of appropriate theoretical frameworks to guide intervention design and evaluation. The findings are illustrated through research examples. Findings Through case studies and published research, it is found that workplace dietary interventions are generally effective, especially fruit and vegetable interventions. There is less consistent evidence on the long term effectiveness of workplace weight management interventions, underscoring the need for further research in this area. This paper also reports evidence that changes in the work environment, including through health and safety programs, may contribute to enhancing the effectiveness of workplace health promotion, including dietary interventions. Organizational factors such as work schedule may also influence dietary patterns. The social ecological model, the social contextual model and political process approach are presented as exemplar conceptual models that may be useful when designing or assessing the effects of workplace health promotion. Originality/value Using the worksite as setting for influencing health by influencing dietary patterns holds considerable promise and may be instrumental in reducing workers’ risk of chronic diseases.

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Mediation of Adult Fruit and Vegetable Consumption in the National 5 A Day for Better Health Community Studies

Abstract: The present study findings provide strong support for mediation of F&V consumption by two variables: self-efficacy and knowledge. The authors discuss the findings in relation to study limitations and future research directions.

Cited by 37 publications

References 33 publications

Long‐term outcomes of the FRESH START trial: exploring the role of self‐efficacy in cancer survivors' maintenance of dietary practices and physical activity

Long‐term outcomes of the FRESH START trial: exploring the role of self‐efficacy in cancer survivors' maintenance of dietary practices and physical activity

Motivation, self-efficacy, physical activity and nutrition in college students: Randomized controlled trial of an internet-based education program

Healthy eating strategies in the workplace

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