Background
Physical inactivity is associated with an increased risk for cardiometabolic disease. Using an assistive transportation device may reduced physical activity that impairs health. Purpose We investigated the effect of short-term access to an assistive transportation device (electric scooter) as a proxy for reduced physical activity on hemodynamics and vascular function in adults. We hypothesized that a one-week reduction in physical activity through the use of an electric scooter would adversely alter resting hemodynamics and vascular function.
Methods Eight adults (5 women; 21 ± 1 y; BMI = 25.8 ± 10.7 kg/m2; 3 men 21 ± 0 y; BMI = 23.0 ± 2.6 kg/m2) performed their normal physical activity for one week (Run-in), were instructed to ride the electric scooter when they would typically walk during the second week (Scooter), and resumed their normal physical activity during the third week (Recovery). Heart rate (HR, brachial blood pressure (BP), central BP, pulse pressure (PP), mean arterial pressure (MAP), augmentation pressure (AP), augmentation index normalized to an HR of 75 bpm (AIx75), and carotid-femoral pulse wave velocity (PWV) were assessed (SphygmoCor XCEL) on days 0, 7, and day 14. Pulse wave analyses and PWV were performed following an overnight fast and were immediately preceded by 5 minutes of seated rest. VO₂ Max was estimated using the YMCA Cycle Ergometer Submaximal test. Data were analyzed using a one-way ANOVA with Tukey multiple comparison test. Significance set at P<0.05. Data are mean ± SD or individual data points.
Author(s): Jackson P. Yeager, Sydney Ayton, Ashley Betz, Rachael A. Binion, Yi Liu, Marissa Scerbo, Rebecca Skujins, Eric Slattery, Kyle L. Timmerman, FACSM, Paul T. Reidy, Kevin D. Ballard, FACSM
Advisor(s): Paul Reidy, Kinesiology, Nutrition and Health; Kyle Timmerman, Kinesiology, Nutrition and Health; Kevin Ballard, Kinesiology, Nutrition and Health
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