DOI
https://doi.org/10.25772/GSC6-Y711
Defense Date
2012
Document Type
Thesis
Degree Name
Master of Science
Department
Health and Movement Sciences
First Advisor
R. Lee Franco
Abstract
Sympathetic overactivity (SO) is associated with obesity and cardiovascular disease (CVD) mortality. Black adolescents have an increased risk of obesity and CVD later in life, particularly females. PURPOSE: To evaluate differences in SO between black (BOA) and white obese female adolescents (WOA). METHODS: Sixty-one BOA (n=49, 13.7±1.6 yrs, 38.1±6.1 kg/m2) and WOA (n=12, 13.3±2.2 yrs, 34.3±4.9 kg/m2) completed a maximal graded treadmill test after which an exercise recovery index (ERI; heart rate/VO2 plateau) was calculated. RESULTS: The ERI was significantly greater in BOA compared to WOA (29.8 ± 6.4 vs. 24.1 ± 3.1, P = 0.004). Multiple linear regression modeling revealed a significant independent association between ERI and VO2FFM (r = -0.310, P = 0.027) and %FAT (r = 0.326, P = 0.020) in BOA only. CONCLUSIONS: These results suggest that BOA females have greater SO than WOA females.
Rights
© The Author
Is Part Of
VCU University Archives
Is Part Of
VCU Theses and Dissertations
Date of Submission
May 2012