Abstract 14062: Does a Prescriptive Exercise Program With Mobile Health Tracking Improve Cardio-Metabolic Risk Factors to a Greater Extent than Exercise Prescription Alone?
Individuals with metabolic syndrome were randomized to: i) a prescriptive exercise plus mobile health (mHealth) tracking group (intervention group) or ii) a prescriptive exercise only group (active control group). Participants [n=127, mean age 57.4 (SD 9.1) y, 74% female] reported to the laboratory at baseline and 12 weeks. Anthropometrics and blood pressure (BP) were measured and blood drawn to examine fasting glucose (FG), glycated hemoglobin (HbA1c), lipids, insulin and high sensitivity C-reactive protein (CRPhs). Fitness (VO2max) was assessed and individualized exercise programs were prescribed. The intervention group received a Smartphone data portal, a pedometer and Bluetooth™ enabled biometric tracking (glucometer and BP monitor). Home FG and BP were to be measured 3x/week and pedometer steps entered daily. Mean changes within each group and differences between groups were examined using multiple linear regression, with adjustment for baseline values. Separate regression models were conducted for the primary outcome (systolic BP) and for secondary outcomes [diastolic BP, body mass index (BMI), waist circumference (WC), VO2max, FG, HbA1c, low density lipoprotein (LDL), triglycerides, insulin, and CRPhs]. Within the intervention group, compliance to mHealth protocols was on average high. Means (SD) for percentage of readings completed for each device were: Pedometer, 83.6 (21.1); Glucometer, 90.3 (17.8); and BP Monitor, 91.5 (17.4). Despite high compliance, at 12-weeks, systolic BP was reduced in the active control group only (adjusted mean change: -8.68; 95% CI: -12.42, -4.94, p<0.001) and this reduction was greater compared to the intervention group (adjusted difference between groups in mean change: -5.68; 95% CI: -10.86, -0.50, p=0.03). At 12-weeks, diastolic BP, BMI, WC, and triglycerides were decreased and VO2max was increased in both groups (all p<0.05), with no differences between groups (all p>0.05). There were no differences within or between groups for FG, HbA1c, LDL, insulin or CRPhs. (all p>0.05). Over 12 weeks, a number of cardio-metabolic risk factors improved with a standard exercise prescription program and an exercise prescription program with mHealth tracking, but home monitoring did not improve outcomes.
- © 2013 by American Heart Association, Inc.