Date of Completion

5-11-2013

Embargo Period

5-21-2013

Advisors

Dr. Carl Maresh; William E. Kraus

Field of Study

Kinesiology

Degree

Master of Science

Open Access

Open Access

Abstract

Exercise training lowers blood pressure (BP) 5-7 mmHg, but the relation between the BP response to exercise training and detraining is unclear. PURPOSE: To examine the BP response after 6m of training followed by 2wk of detraining among a subsample from the Studies of a Targeted Risk Reduction Intervention through Defined Exercise study. METHODS: Subjects were 38 men and 37 women 50.2±10.6y with a body mass index of 30.5±3.2kg·m-2 and resting BP of 120.0±13.7/79.1±9.2mmHg. Subjects completed 1of 3 types of exercise training: aerobic (AE) vigorous intensity (n=34); resistance training (RT) (n=28); or AE vigorous and RT (n=13). Simple linear and multivariable regression tested the response of BP to exercise and detraining. Chi square tested the frequency of subjects that increased/decreased BP after training and detraining. RESULTS: Among the total sample, BP was not different after training and detraining, regardless of modality (p>.05). However, subjects who responded to the BP lowering effects of exercise training reduced BP 10.0±6.7/9.1±4.9 mmHg; whereas those that did not respond increased BP 9.6±7.6/6.2±5.3 mmHg (pCONCLUSION:Future work is needed to elucidate mechanisms that explain why some people lower BP with exercise training, while others lower BP with detraining. Grant: 1R01HL57354; 2003-2008; NCT00275145

Major Advisor

Dr. Linda Pescatello

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