NDLI: Change in Physical Activity During Active Treatment in a Prospective Study of Breast Cancer Survivors

Content Provider	PubMed Central
Author	Kwan, Marilyn L. Sternfeld, Barbara Ergas, Isaac Joshua Timperi, Allegra W. Roh, Janise M. Hong, Chi-chen Quesenberry, Charles P. Kushi, Lawrence H.
Abstract	Physical activity offers many benefits to breast cancer survivors, yet research on physical activity during the immediate period following a breast cancer diagnosis is limited. In a prospective cohort study of 1,696 women diagnosed with invasive breast cancer in the Kaiser Permanente Northern California Medical Care Program from 2006–2009, we describe change in self-reported physical activity levels from around diagnosis to six months post-diagnosis and determine factors associated with change. Participants completed a comprehensive physical activity questionnaire at baseline (2 months post-diagnosis) and at follow-up (8 months post-diagnosis). Predictors of physical activity change were determined by multivariable linear regression. Reductions in all physical activity levels were observed (P<0.0001); mean (SD) change (hours/week) of moderate-vigorous physical activity (MVPA) was −1.28 (4.48) and sedentary behavior was −0.83 (6.95). In fully-adjusted models, overweight and obesity were associated with greater declines in MVPA of −1.58 hours/week (SD=0.92) and −1.29 hours/week (SD=0.93), respectively (P=0.0079). Receipt of chemotherapy only was also associated with a greater decrease in MVPA (−2.12 hours/week; SD=0.92; P<0.0001), specifically for recreational activities (−1.62 hours/week; SD=0.64; P=0.0001). These data suggest challenges in maintaining physical activity levels during active treatment among women with breast cancer. Interventions to encourage physical activity in breast cancer survivors should be pursued.
Related Links	http://dx.doi.org/10.1007/s10549-011-1788-4
Ending Page	690
Page Count	12
Starting Page	679
File Format	PDF
ISSN	01676806
e-ISSN	15737217
Journal	Breast Cancer Research and Treatment
Issue Number	2
Volume Number	131
Language	English
Publisher Date	2012-01-01
Access Restriction	Open
Subject Keyword	Cancer Research Oncology Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Cancer Research Oncology

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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