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Wearable Technology To Reduce Sedentary Behavior And CVD Risk In Older Adults: A Pilot Randomized Clinical Trial

Authors Roberts LM, Jaeger BC, Baptista LC, Harper SA, Gardner AK, Jackson EA, Pekmezi D, Sandesara B, Manini TM, Anton SD, Buford TW

Received 10 July 2019

Accepted for publication 26 September 2019

Published 23 October 2019 Volume 2019:14 Pages 1817—1828


Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 2

Editor who approved publication: Dr Richard Walker

Lisa M Roberts,1,2 Byron C Jaeger,3 Liliana C Baptista,1,2 Sara A Harper,1,2 Anna K Gardner,4 Elizabeth A Jackson,5 Dorothy Pekmezi,6 Bhanuprasad Sandesara,4 Todd M Manini,4 Stephen D Anton,4 Thomas W Buford1,2

1Department of Medicine, Division of Gerontology/Geriatrics/Palliative Care, University of Alabama at Birmingham, Birmingham, AL, USA; 2Center for Exercise Medicine, University of Alabama at Birmingham, Birmingham, AL, USA; 3Department of Biostatistics, University of Alabama at Birmingham, Birmingham, AL, USA; 4Department of Aging and Geriatric Research, University of Florida, Gainesville, FL, USA; 5Department of Medicine, Division of Cardiovascular Disease, University of Alabama at Birmingham, Birmingham, AL, USA; 6Department of Health Behavior, School of Public Health, the University of Alabama at Birmingham, Birmingham, AL, USA

Correspondence: Thomas W Buford
Department of Medicine, Division of Gerontology/Geriatrics/Palliative Care, University of Alabama at Birmingham, 1313 13th Street S., Birmingham, AL 35205, USA
Tel +1 205 996 3008
Fax +1 205 996 3110

Background: Physical exercise is associated with decreased cardiovascular disease (CVD) risk, but recent large-scale trials suggest that exercise alone is insufficient to reduce CVD events in high-risk older adults.
Purpose: This pilot randomized clinical trial aimed to collect critical data on feasibility, safety, and protocol integrity necessary to design a fully powered randomized controlled trial (RCT) and evaluate the impact of combining structured exercise with an intervention designed to enhance non-exercise physical activity (EX+NEPA) compared to EX alone.
Methods: Forty participants aged ≥60 years with moderate-to-high risk of coronary heart disease events were randomly assigned to either the EX+NEPA or EX groups and followed for 20 weeks. Both groups underwent a twice-weekly, 8-week center-based exercise intervention with aerobic and resistance exercises. EX+NEPA group also received a wearable activity tracking device along with behavioral monitoring and feedback throughout the study. Study outcomes were evaluated at 8 and 20 weeks.
Results: Data are presented as adjusted mean change of the differences over time with 95% confidence intervals at 20 weeks. Relative to EX, the change in steps/day at 20 weeks was 1994 (−40.27, 4028) higher for EX+NEPA. For sedentary time at close-out, the EX+NEPA group was −6.8 (−45.2, 31.6) min/day relative to EX. The between-group differences for systolic and diastolic blood pressure were −9.9 (−19.6, −0.3) and −1.8 (−6.9, 3.3) mmHg, respectively.
Conclusion: The addition of wearable technology intervention appeared to positively influence daily activity patterns and changes in blood pressure – potentially improving risk factors for CVD. A fully powered randomized trial is needed to ultimately test this hypothesis.

Keywords: aging, cardiovascular, exercise, physical activity, activity monitor

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