Home-based isometric exercise training induced reductions resting blood pressure

Wiles, J., Goldring, N. G. and Coleman, D. A. (2016) Home-based isometric exercise training induced reductions resting blood pressure. European Journal of Applied Physiology. ISSN 1439-6319.

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Abstract

Purpose:
Isometric exercise training (IET) reduces resting blood pressure (BP). Most previous protocols impose exercise barriers which undermine its effectiveness as a potential physical therapy for altering BP. An inexpensive, home-based programme would promote IET as a valuable tool in the fight against hypertension. The aims of this study were: (a) to investigate whether home-based wall squat training could successfully reduce resting BP, and (b) to explore the physiological variables that might mediate a change in resting BP.

Methods:
Twenty-eight healthy normotensive males were randomly assigned to a control and a 4 week home-based IET intervention using a crossover design with a 4 week ‘washout’ period in-between. Wall squat training was completed 3x weekly over 4 weeks with 48 hours between sessions. Each session comprised 4x 2 minute bouts of wall squat exercise performed at a participant-specific knee joint angle relative to a target HR of 95% HRpeak, with 2 minutes rest between bouts. Resting heart rate, BP, cardiac output, total peripheral resistance and stroke volume were taken at baseline and post each condition.

Results:
Resting BP (systolic = -4 ± 5, diastolic = -3 ± 3 and mean arterial = -3 ± 3 mmHg), cardiac output (-0.54 ± 0.66 L∙min-1) and heart rate (-5 ± 7 beats∙min-1) were all reduced following IET, with no change in total peripheral resistance or stroke volume compared to the control.
Conclusion:
These findings suggest the wall squat provides an effective method for reducing resting BP in the home resulting primarily from a reduction in resting heart rate.

Item Type: Article
Subjects: G Geography. Anthropology. Recreation > GV Recreation Leisure > GV0558 Sports science
Divisions: Faculty of Social and Applied Sciences > School of Human and Life Sciences
Depositing User: Dr Damian Coleman
Date Deposited: 17 Nov 2016 14:12
Last Modified: 01 Dec 2016 12:09
URI: https://create.canterbury.ac.uk/id/eprint/15157

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Last edited: 29/06/2016 12:23:00