FPIN's Help Desk Answers

Wearable Devices for Weight Loss

 

Am Fam Physician. 2018 Dec 1;98(11):670-671.

Clinical Question

Do wearable devices aid with weight loss when combined with behavioral interventions?

Evidence-Based Answer

Although there is inconsistent evidence, the combination of wearable technology and intensive lifestyle interventions may be more effective for weight loss than lifestyle interventions alone. There is no effect on outcomes of body composition, fitness level, overall physical activity, or dietary choices. (Strength of Recommendation: C, disease-oriented evidence.)

Evidence Summary

A 2016 multicenter randomized controlled trial (n = 471) compared the effectiveness of intensive lifestyle behavioral interventions vs. lifestyle interventions plus a wearable device for weight loss.1 The study participants were 18 to 35 years of age with body mass indices of 25 to 40 kg per m2 and indicated they were interested in weight loss. Those who had weight loss surgery or self-reported weight loss of more than 5% of current body weight in the previous three months were excluded. Participants were placed on a low-calorie diet (1,200 kcal per day for those weighing less than 200 lb [90.7 kg], 1,500 kcal per day for those weighing 200 to 250 lb [113.4 kg], or 1,800 kcal per day for those weighing more than 250 lb), were prescribed physical activity (100 to 300 minutes per week), and had group counseling sessions for six months. After six months, monthly telephone counseling sessions, weekly text message prompts, and access to online study materials were added. At that time, participants were randomized to two groups: the control group continued with the previous activity and diet plan, and the intervention group received the BodyMedia Fit Core armband to monitor physical activity and software to allow self-monitoring of dietary intake. Outcomes were measured every six months for 24 months. The primary outcome was change in weight; secondary outcomes included body composition, cardiorespiratory fitness, physical activity, and dietary intake. Patients in the intervention

Address correspondence to Elise Morris, MD, at morrise@georgetown.edu. Reprints are not available from the authors.

Author disclosure: No relevant financial affiliations.

References

1. Jakicic JM, Davis KK, Rogers RJ, et al. Effect of wearable technology combined with a lifestyle intervention on long-term weight loss: the IDEA randomized clinical trial [published correction appears in JAMA. 2016;316(14):1498]. JAMA. 2016;316(11):1161–1171.

2. Shuger SL, Barry VW, Sui X, et al. Electronic feedback in a diet- and physical activity-based lifestyle intervention for weight loss: a randomized controlled trial. Int J Behav Nutr Phys Act. 2011;8:41.

Help Desk Answers provides answers to questions submitted by practicing family physicians to the Family Physicians Inquiries Network (FPIN). Members of the network select questions based on their relevance to family medicine. Answers are drawn from an approved set of evidence-based resources and undergo peer review. The strength of recommendations and the level of evidence for individual studies are rated using criteria developed by the Evidence-Based Medicine Working Group (http://www.cebm.net).

The complete database of evidence-based questions and answers is copyrighted by FPIN. If interested in submitting questions or writing answers for this series, go to http://www.fpin.org or e-mail: questions@fpin.org.

This series is coordinated by John E. Delzell Jr., MD, MSPH, Associate Medical Editor.

A collection of FPIN's Help Desk Answers published in AFP is available at https://www.aafp.org/afp/hda.

 

 

Want to use this article elsewhere? Get Permissions

CME Quiz

More in AFP


Editor's Collections


Related Content


More in Pubmed

MOST RECENT ISSUE


Dec 15, 2018

Access the latest issue of American Family Physician

Read the Issue


Email Alerts

Don't miss a single issue. Sign up for the free AFP email table of contents.

Sign Up Now

Navigate this Article