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Critical Reviews™ in Physical and Rehabilitation Medicine
SJR: 0.117 SNIP: 0.228 CiteScore™: 0.17

ISSN Печать: 0896-2960
ISSN Онлайн: 2162-6553

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Critical Reviews™ in Physical and Rehabilitation Medicine

DOI: 10.1615/CritRevPhysRehabilMed.2013007153
pages 137-145

Post-Exercise Hypotension: Effects of Acute And Chronic Isometric Handgrip in Well-Controlled Hypertensives

Cheri L. McGowan
Department of Kinesiology, Faculty of Human Kinetics, University of Windsor
Cassandra Bartol
Department of Kinesiology, University of Windsor, Windsor, Ontario, Canada
Kenji A. Kenno
Department of Kinesiology, University of Windsor, Windsor, Ontario, Canada

Краткое описание

Isometric handgrip (IHG) training lowers resting blood pressure (BP) in individuals with hypertension, yet the effects of a session of IHG exercise on BP are unknown. In normotensives, a single session of IHG elicits a reduction in BP immediately following exercise (post-exercise hypotension, PEH). Therefore, we tested the hypotheses that, in hypertensives, a session of IHG would elicit PEH and that this response would be attenuated with IHG training. Twenty hypertensives (all medicated) were randomly assigned to an IHG training group (n=11; resting BP: 114 ± 13/61 ± 12 mmHg; mean ± SD) or a non-exercising control group (n=9; 118 ± 14/68 ± 4 mmHg). The IHG training group performed four 2-minute IHG contractions at 30% of maximal voluntary effort, three times per week for 8 weeks. BP was assessed (brachial artery oscillometry) prior to and for 22 hours following a session of IHG, before, during, and after the post-training period. At baseline, BP was not reduced following an IHG session in either group. These findings of which were upheld at mid- and post-training time points (all p ≥ 0.05). In conclusion, an IHG session does not elicit PEH in medicated hypertensives, and this does not change with chronic exposure to the IHG stimulus.


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