Exercise Dose Effects on Body Fat 12 Months after an Exercise Intervention: Follow-up from a Randomized Controlled Trial

Journal of Obesity
Christine M FriedenreichKerry S Courneya

Abstract

Exercise interventions can result in weight loss, which is associated with reductions in disease risk. It is unknown how the volume of exercise prescribed in a one-time exercise intervention impacts long-term body fatness. We compared 24-month body fat changes among postmenopausal women previously prescribed 300 versus 150 minutes/week of exercise in a year-long exercise intervention trial. The Breast Cancer and Exercise Trial in Alberta (BETA) was a two-centred randomized controlled trial in Alberta, Canada. The trial consisted of a 12-month intervention and 12-month observation period. For the intervention, participants were randomized to either a moderate-volume exercise group (150 min/week) or a high-volume exercise group (300 min/week). Participants in this study were 334 inactive postmenopausal women who had been followed-up to 24 months. The primary outcome for this study was 24-month change in total body fat using dual energy X-ray absorptiometry scans. Other measures included weight, waist and hip circumferences, subcutaneous and intra-abdominal fat from computed tomography scans, and lean mass. Researchers were blinded to randomization group when measuring body fat. Both groups self-reported ∼180 minutes/week moderate...Continue Reading

Associated Clinical Trials

Sep 15, 2011·Christine Friedenreich

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Citations

Aug 7, 2019·Cancer Epidemiology, Biomarkers & Prevention : a Publication of the American Association for Cancer Research, Cosponsored by the American Society of Preventive Oncology·Christine M FriedenreichKerry S Courneya

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Methods Mentioned

BETA
X-ray

Software Mentioned

GE
ActiLife
diet calc
Healthcare enCORE
ActiGraph
[UNK]
Hologic QDR
R Foundation for Statistical Computing
R
SAS

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