Abstract

The greater metabolic cost associated with concentric muscle contractions, compared to eccentric muscle contractions, is well known. However, the influence this metabolic cost difference has on post exercise hypotension and arterial stiffness is unknown. Thus the purpose of this investigation was to determine changes in blood pressure and arterial stiffness following a session of concentric only and eccentric only resistance exercise. Twelve subjects performed 2 exercise training sessions that consisted of 6 separate lower and upper body resistance exercises that were comprised of either eccentric only or concentric only muscle contractions. Mean arterial pressure, pulse wave velocity, heart rate and blood lactate were assessed at baseline as well as immediately, 30 and 90 minutes post. The VO2 requirement across the whole concentric exercise session was 50.0% greater than eccentric exercise. MAP following the bout of eccentric exercise was elevated by 5% (p

Modified Abstract

The greater metabolic cost associated with concentric muscle contractions, compared to eccentric muscle contractions, is well known. However, the influence this cost difference has on post exercise hypotension and arterial stiffness is unknown. The purpose of this investigation was to determine changes in blood pressure and arterial stiffness following a session of concentric only and eccentric only resistance exercise. Subjects completed a concentric and eccentric full-body resistance workout. Mean arterial pressure, pulse wave velocity, heart rate and blood lactate were assessed at 6 different timepoints (pre through 120 minutes of recovery). The data indicates that metabolically demanding concentric exercises results in greater post exercise hypotension and reduced vessel stiffness. These results have exercise prescription implications for those with hypertension or autonomic dysfunction.

Research Category

Biomedical Sciences

Primary Author's Major

Exercise Science

Mentor #1 Information

Dr. John McDaniel

Mentor #2 Information

Jon Stavres

Mentor #3 Information

Stephen Fischer

Presentation Format

Poster

Start Date

21-3-2017 1:00 PM

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Poster

Research Area

Medicine and Health Sciences

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Mar 21st, 1:00 PM

The Influence of Eccentric and Concentric Resistance Exercise on Post Exercise Blood Pressure and Arterial Stiffness.

The greater metabolic cost associated with concentric muscle contractions, compared to eccentric muscle contractions, is well known. However, the influence this metabolic cost difference has on post exercise hypotension and arterial stiffness is unknown. Thus the purpose of this investigation was to determine changes in blood pressure and arterial stiffness following a session of concentric only and eccentric only resistance exercise. Twelve subjects performed 2 exercise training sessions that consisted of 6 separate lower and upper body resistance exercises that were comprised of either eccentric only or concentric only muscle contractions. Mean arterial pressure, pulse wave velocity, heart rate and blood lactate were assessed at baseline as well as immediately, 30 and 90 minutes post. The VO2 requirement across the whole concentric exercise session was 50.0% greater than eccentric exercise. MAP following the bout of eccentric exercise was elevated by 5% (p