Accepted for/Published in: JMIR mHealth and uHealth
Date Submitted: Jan 12, 2019
Date Accepted: May 25, 2019
Efficacy of Wearable Devices for Resolution of Metabolic Syndrome: A Clinical Trial in Korean Adults
ABSTRACT
Background:
Few studies have examined the effect of wearable devices on chronic diseases. We hypothesized that a wearable device that can monitor and provide feedback on physical activity may resolve metabolic syndrome (MetS).
Objective:
This study aimed to examine the objective effects of the use of these devices on MetS resolution.
Methods:
Patients diagnosed with MetS were recruited. Subjects were prescribed regular exercise with a wearable device (Coffee WALKIE +Dv.3, GC Healthcare CI, Korea) on their wrist or waist for 12 weeks. Subjects received self-feedback on the amount of their exercise through an application on their smartphone. The information on physical activities of the subjects was uploaded automatically on a website so that a trained nurse could provide individuals with feedback regarding physical activity via telephone consultation on alternate weeks. Blood pressure (BP), body composition, fasting plasma glucose, and lipid profiles were recorded. The primary outcome was MetS resolution. The secondary outcome was an improvement in the components of metabolic impairment.
Results:
Of the 53 subjects recruited, 20 subjects with a median age of 46 years (range 36-50 years) completed the trial. There was no significant difference in the amount of calorie expenditure on weeks 4, 8, and 12. The exercise was constantly maintained for 12 weeks. After 12 weeks, MetS was resolved in 9 subjects (45%), and the average number of metabolic impairment components per person decreased from 3.4 to 2.9. Particularly, the mean systolic and diastolic BP decreased from 136.6 ± 18.5 mmHg to 127.4 ± 19.5 mmHg and from 84.0 ± 8.1 mmHg to 77.4 ± 14.4 mmHg, respectively (P=0.015, P=0.022).
Conclusions:
Wearable devices along with good patient adherence and sustained engagement may be an efficient strategy for treating patients with MetS.
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