Psychosocial mediators of physical activity behavior among adults and children

Lewis, Beth A.; Marcus, Bess H.; Pate, Russell R.; Dunn, Andrea L.

doi:10.1016/s0749-3797(02)00471-3

Cited by 302 publications

(292 citation statements)

References 38 publications

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“…There are no studies to compare these results with, as to our knowledge no physical activity intervention studies have executed a full mediation analysis in children or adolescents 21,22 . In adults, some support was found for self-efficacy to be a mediator among mothers with young children 40 .…”

Section: Discussionmentioning

confidence: 99%

Explaining the effect of a 1-year intervention promoting physical activity in middle schools: a mediation analysis

Haerens

Cerin

Maes

et al. 2007

Public Health Nutr.

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Objective: The aim of the present study was to examine the mediation effects of changes in psychosocial determinants of physical activity (attitude, social support, self-efficacy, perceived benefits and barriers) on changes in physical activity. Design: One-year intervention study with baseline and 1-year post measures of physical activity habits and psychosocial correlates. Setting: Fifteen middle schools. Subjects: Boys and girls (n 5 2840) aged 11-15 years completed the validated questionnaires during class hours. Results: The product-of-coefficients test was used to asses the mediating effects. Self-efficacy for physical activity at school was found to be the only significant mediator of physical activity change. Specifically, self-efficacy for physical activity at school partly mediated the effect of the intervention on total and school-related physical activity change in the intervention group with parental support (P , 0.05). None of the other potential mediators, attitudes, social support, perceived benefits and perceived barriers, seemed to have had a positive effect. Even a suppressor effect was found for attitudes. Given that the effects of self-efficacy and attitudes were of opposite direction, the total mediated/suppressed effects of the intervention were not statistically significant. Conclusions: Positive changes in total and school-related physical activity in adolescents could be partly explained by increases in self-efficacy for physical activity at school through a physical activity intervention in middle schools with parental support. However, the suppressor effect of attitudes decreased this effect. As this is one of the first true mediation analyses in this age group, further research is needed to replicate the importance of these mediators.

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Section: Discussionmentioning

confidence: 99%

Explaining the effect of a 1-year intervention promoting physical activity in middle schools: a mediation analysis

Haerens

Cerin

Maes

et al. 2007

Public Health Nutr.

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“…31, 33, 34 While cognitive strategies may not be sufficient to change physical activity, they can help shape behavior and move individuals along the stages of change. 35 Cognitive strategies include increasing knowledge about activity, understanding the risks of not being active, caring about the consequence of one not being active on others, comprehending the benefits of activity, and increasing opportunities to be active. Among adults, behavioral processes of change have mediated changes in physical activity.…”

Section: Interventionsmentioning

confidence: 99%

“…Among adults, behavioral processes of change have mediated changes in physical activity. 35 Behavioral strategies include substituting alternatives (e.g., engaging in activity at times when it is not usually done such as when one is under stress or tired), enlisting social support, rewarding oneself, committing oneself to being active, and reminding oneself about being active. Based on our focus group conversations, many of these strategies could be delivered through health care providers to their pregnant patients, and ideally to their spouse/partner or other family member as well, and might assist pregnant women and their family support members in overcoming some of their barriers to physical activity.…”

Section: Interventionsmentioning

confidence: 99%

Perceived Barriers to Physical Activity Among Pregnant Women

Evenson

Moos

Carrier

et al. 2008

Matern Child Health J

253

261

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Objective-Physical activity generally declines during pregnancy, but barriers to activity during this time period are not well understood. The objective was to examine barriers to physical activity in a large cohort of pregnant women and to explore these barriers in more depth with qualitative data derived from a separate focus group study using a socioecologic framework.Method-A total of 1535 pregnant women (27-30 weeks' gestation) enrolled in the Pregnancy, Infection, and Nutrition Study were asked an open-ended question about their primary barrier to physical activity; responses were coded into categories according to the socioecologic framework. To further elucidate, 13 focus groups of a total of 58 pregnant women (20-37 weeks' gestation) were conducted among Hispanic, African American, and White participants.Results-Among the 1535 pregnant women participating in the survey, 85% reported an intrapersonal barrier to physical activity, of which almost two-thirds were health related. Only 2% of the women reported their main barrier to physical activity as interpersonal and 3% reported a neighborhood or environmental barrier. These results were supported by the focus group data, overall and by race/ethnicity and body mass index. Although women discussed barriers to physical activity at a variety of levels, the intrapersonal level was the most frequently cited and discussed factor in both studies.Conclusions-Since pregnancy may trigger the development of obesity and since physical activity is recommended for healthy pregnant women, it is imperative to promote physical activity in a more relevant way. These quantitative and qualitative studies revealed many barriers to physical activity among pregnant women and some suggestions for interventions.

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“…Several of these programs were offered to individuals in group format and these reported improvement in quality of life, physical functioning and fatigue in cancer patients during primary treatment [3][4][5][6][7][8][9][10] and after completion of initial treatment [11][12][13][14]. Recently, interest has been growing in patients' experience with training within groups.…”

Section: Introductionmentioning

confidence: 99%

“…In the case of sedentary adults involved in exercise classes, it has been demonstrated that groups that reported high cohesiveness were characterized by mutual support for exercise activities, which then facilitated the development of self-efficacy beliefs and improved mastery expectation with regard to exercise [27]. This is supposed to have a positive effect on physical activity behaviour [10]. Hence, the implication is that cohesion is a putative mechanism of change during group interventions and is therefore expected to be related to intervention outcome.…”

Section: Introductionmentioning

confidence: 99%

The effect of group cohesion on rehabilitation outcome in cancer survivors

et al. 2007

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The effect of group cohesion on rehabilitation outcome in cancer survivors May, Anne M.; Duivenvoorden, Hugo J.; Korstjens, Irene; van Weert, Ellen; HoekstraWeebers, Josette E. H. M.; van den Borne, Bart; Mesters, Ilse; van der Schans, Cees P.; Ros, Wynand J. G. Take-down policy If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim.Downloaded from the University of Groningen/UMCG research database (Pure): http://www.rug.nl/research/portal. For technical reasons the number of authors shown on this cover page is limited to 10 maximum. AbstractObjective: Group-based physical training interventions have been shown to be effective in increasing quality of life in cancer survivors. Until now, however, the impact of cohesion within the group on intervention outcome has not been investigated.Methods: We examined self-reported individual group cohesion ratings collected in the first half of a 12-week rehabilitation programme for cancer survivors ðN ¼ 132Þ: Four dimensions of group cohesion were measured, i.e. the bond with the group as whole, the bond with other members, cooperation within the group and the instrumental value. Quality of life, physical functioning and fatigue were assessed before and after the intervention using the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire-C30. Linear multiple multivariate regression analysis was conducted to explore the relationship between group cohesion and intervention outcome.Results: The relationship between group cohesion and outcome was significantly modified by gender. Higher ratings of cooperation within the group predicted better post-intervention quality of life and physical functioning and less fatigue in men, and better quality of life and physical functioning in women. Additionally, women who reported a stronger bond with other members showed a lower quality of life after the intervention. No relationship was found between the instrumental value and the outcome variables.Conclusion: Some dimensions of group cohesion seem to be associated with intervention outcome. The underlying mechanisms need to be unravelled.

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Psychosocial mediators of physical activity behavior among adults and children

Cited by 302 publications

References 38 publications

Explaining the effect of a 1-year intervention promoting physical activity in middle schools: a mediation analysis

Explaining the effect of a 1-year intervention promoting physical activity in middle schools: a mediation analysis

Perceived Barriers to Physical Activity Among Pregnant Women

The effect of group cohesion on rehabilitation outcome in cancer survivors

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