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Technology- and Phone-Based Weight Loss Intervention: Pilot RCT in Women at Elevated Breast Cancer Risk.

Abstract：

INTRODUCTION:For women with an increased breast cancer risk, reducing excess weight and increasing physical activity are believed to be important approaches for reducing their risk. This study tested a weight loss intervention that combined commercially available technology-based self-monitoring tools with individualized phone calls. DESIGN:Women were randomized to a weight loss intervention arm (n=36) or a usual care arm (n=18). SETTING/PARTICIPANTS:Participants were women with a BMI ≥ 27.5 kg/m2 and elevated breast cancer risk recruited from the mammography clinic at the Moores Cancer Center at the University of California San Diego. INTERVENTION:Intervention participants used the MyFitnessPal website and phone app to monitor diet and a Fitbit to monitor physical activity. Participants received 12 standardized coaching calls with trained counselors over 6 months. Usual care participants received the U.S. Dietary Guidelines for Americans at baseline and two brief calls over the 6 months. MAIN OUTCOME MEASURES:Weight and accelerometer-measured physical activity were assessed at baseline and 6 months. Data were collected in San Diego, CA, from 2012 to 2014 and analyzed in 2015. RESULTS:Participants (n=54) had a mean age of 59.5 (SD=5.6) years, BMI of 31.9 (SD=3.5), and a mean Gail Model score of 2.5 (SD=1.4). At 6 months, intervention participants had lost significantly more weight (4.4 kg vs 0.8 kg, p=0.004) and a greater percentage of starting weight (5.3% vs 1.0%, p=0.005) than usual care participants. Across arms, greater increases in moderate-to-vigorous physical activity resulted in greater weight loss (p=0.01). CONCLUSIONS:Combining technology-based self-monitoring tools with phone counseling supported weight loss over 6 months in women at increased risk for breast cancer.

journal_name

Am J Prev Med

journal_title

American journal of preventive medicine

authors

Hartman SJ,Nelson SH,Cadmus-Bertram LA,Patterson RE,Parker BA,Pierce JP

doi

10.1016/j.amepre.2016.06.024

subject

Has Abstract

pub_date

2016-11-01 00:00:00

pages

714-721

issue

eissn

0749-3797

issn

1873-2607

pii

S0749-3797(16)30277-X

journal_volume

pub_type

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Technology- and Phone-Based Weight Loss Intervention: Pilot RCT in Women at Elevated Breast Cancer Risk.