Abstract 17897: Does Prescriptive Exercise With Mobile Health Tracking Improve Self-efficacy and Health Status in Individuals With Metabolic Syndrome?
Individuals [n=127, mean age 57.4 (SD 9.1) y, 74% female] with metabolic syndrome were randomized to a prescriptive exercise plus mobile health (mHealth) tracking group (intervention group) or a prescriptive exercise only group (active control group). Participants reported to the laboratory at baseline and 12 weeks for fitness assessment (VO2max) and individualized exercise prescription. The intervention group received a Smartphone data portal, a pedometer, and Bluetooth™ enabled glucometer and BP monitor. Home FG and BP were measured 3x/week and pedometer steps entered daily. Outcomes from behavioural questionnaires related to self-efficacy for physical activity (total SE) and health status measures from the 36-item short-form (SF-36) health survey [transformed scale scores (range 0 to 100) for physical functioning (PF), general health (GH), vitality (VT), and mental health (MH)] were examined. Mean changes within groups and differences between groups were examined using multiple linear regression, with adjustment for baseline values. Compliance to mHealth protocols was on average high within the intervention group. Means (SD) for percentage of readings completed were: Pedometer, 83.6 (21.1); Glucometer, 90.3 (17.8); and BP Monitor, 91.5 (17.4). Despite high compliance, there were no differences between groups at 12 weeks for any of the outcomes examined (all p>0.05). While groups did not differ, the intervention group improved by 2.9 (95% CI: 0.1 to 5.6) points on the PF scale (p=0.04), 3.5 (95% CI: 0.7 to 6.3) points on the GH scale (p=0.01), 5.7 (95% CI: 2.8 to 8.5) points on the VT scale (p<0.001), and 3.5 (95% CI: 1.3 to 5.7) points on the MH scale (p=0.002). The active control group improved their VT scale score by 7.1 (95% CI: 4.1 to 10.2) points (p<0.001). Neither group improved in their confidence to be physically active (total SE: p>0.05 for both); which was high at baseline. In summary, after 12-weeks, all examined SF-36 scales improved following an exercise prescription program with mHealth tracking while only the VT scale score improved with a standard exercise prescription program.
- © 2013 by American Heart Association, Inc.