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Randomized Controlled Trial
. 2015 Dec;34S(0):1296-304.
doi: 10.1037/hea0000307.

Internet-based physical activity intervention for women with a family history of breast cancer

Sheri J Hartman  1 , Shira I Dunsiger  2 , Catherine R Marinac  3 , Bess H Marcus  4 , Rochelle K Rosen  2 , Kim M Gans  5
Affiliations
Randomized Controlled Trial

Internet-based physical activity intervention for women with a family history of breast cancer

Sheri J Hartman et al. Health Psychol. 2015 Dec.

Abstract

Objective: Physical inactivity is a modifiable risk factor for breast cancer. Physical activity interventions that can be delivered through the Internet have the potential to increase participant reach. The efficacy of an Internet-based physical activity intervention was tested in a sample of women at an elevated risk for breast cancer.

Method: A total of 55 women with at least 1 first-degree relative with breast cancer (but no personal history of breast cancer) were randomized to a 3-month theoretically grounded Internet-based physical activity intervention or an active control arm. Minutes of moderate to vigorous physical activity, psychosocial mediators of physical activity adoption and maintenance, as well as worry and perceived risk of developing breast cancer were assessed at baseline, 3-month, and 5-month follow up.

Results: Participants were on average 46.2 (SD = 11.4) years old with a body mass index of 27.3 (SD = 4.8) kg/m2. The intervention arm significantly increased minutes of moderate to vigorous physical activity compared to the active control arm at 3 months (213 vs. 129 min/week) and 5 months (208 vs. 119 min/week; both ps < .001). Regression models indicated that participants in the intervention had significantly higher self-efficacy for physical activity at 3 months (p < .01) and borderline significantly higher self-efficacy at 5 months (p = .05). Baseline breast cancer worry and perceived risk were not associated with physical activity.

Conclusion: Findings from this study suggest that an Internet-based physical activity intervention may substantially increase physical activity in women with a family history of breast cancer.

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Figures

Figure 1
Figure 1
CONSORT Flow Diagram
Figure 2
Figure 2
Unadjusted Mean Minutes per Week of Physical Activity at Baseline, 3-Months, and 5-Months, in a sample of 55 Women Participating in a Physical Activity Intervention (n=28 Intervention; n=27 Active Control). *p-value determined via Analysis of Variance (ANOVA)
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References

    1. Abraham C, Michie S. A taxonomy of behavior change techniques used in interventions. Health Psychol. 2008;27(3):379–387. doi: 10.1037/0278-6133.27.3.379. - DOI - PubMed
    1. Anderson-Bill ES, Winett RA, Wojcik JR. Social cognitive determinants of nutrition and physical activity among web-health users enrolling in an online intervention: the influence of social support, self-efficacy, outcome expectations, and self-regulation. J Med Internet Res. 2011;13(1):e28. doi: 10.2196/jmir.1551. - DOI - PMC - PubMed
    1. Audrain J, Schwartz M, Herrera J, Goldman P, Bush A. Physical activity in first-degree relatives of breast cancer patients. J Behav Med. 2001;24(6):587–603. - PubMed
    1. Bandura A. Social foundations of thought and action: a social cognitive theory. Englewood Cliffs: Prentice-Hall; 1986.
    1. Basen-Engquist K, Carmack CL, Perkins H, Hughes D, Serice S, Scruggs S, Waters A. Design of the Steps to Health Study of Physical Activity in Survivors of Endometrial Cancer: Testing a Social Cognitive Theory Model. Psychol Sport Exerc. 2011;12(1):27–35. doi: 10.1016/j.psychsport.2010.07.010. - DOI - PMC - PubMed

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