Post-resistance exercise hemodynamic and autonomic responses: Comparison between normotensive and hypertensive men
To compare post‐resistance exercise hypotension (PREH) and its mechanisms in normotensive and hypertensive individuals, 14 normotensives and 12 hypertensives underwent two experimental sessions: control (rest) and exercise (seven exercises, three sets, 50% of one repetition maximum). Hemodynamic and...
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Published in: | Scandinavian journal of medicine & science in sports Vol. 25; no. 4; pp. 486 - 494 |
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Main Authors: | , , , , , , , , , , , |
Format: | Journal Article |
Language: | English |
Published: |
Denmark
Blackwell Publishing Ltd
01-08-2015
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Subjects: | |
Online Access: | Get full text |
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Summary: | To compare post‐resistance exercise hypotension (PREH) and its mechanisms in normotensive and hypertensive individuals, 14 normotensives and 12 hypertensives underwent two experimental sessions: control (rest) and exercise (seven exercises, three sets, 50% of one repetition maximum). Hemodynamic and autonomic clinic measurements were taken before (Pre) and at two moments post‐interventions (Post 1: between 30 and 60 min; Post 2: after 7 h). Ambulatory blood pressure (BP) was monitored for 24 h. At Post 1, exercise decreased systolic BP similarly in normotensives and hypertensives (−8 ± 2 vs −13 ± 2 mmHg, P > 0.05), whereas diastolic BP decreased more in hypertensives (−4 ± 1 vs −9 ± 1 mmHg, P < 0.05). Cardiac output and systemic vascular resistance did not change in normotensives and hypertensives (0.0 ± 0.3 vs 0.0 ± 0.3 L/min; −1 ± 1 vs −2 ± 2 U, P > 0.05). After exercise, heart rate (+13 ± 3 vs +13 ± 2 bpm) and its variability (low‐ to high‐frequency components ratio, 1.9 ± 0.4 vs +1.4 ± 0.3) increased whereas stroke volume (−14 ± 5 vs −11 ± 5 mL) decreased similarly in normotensives and hypertensives (all, P > 0.05). At Post 2, all variables returned to pre‐intervention, and ambulatory data were similar between sessions. Thus, a session of resistance exercise promoted PREH in normotensives and hypertensives. Although this PREH was greater in hypertensives, it did not last during the ambulatory period, which limits its clinical relevance. In addition, the mechanisms of PREH were similar in hypertensives and normotensives. |
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Bibliography: | ark:/67375/WNG-L9264S64-4 istex:F7CF08C78F5EDAAA280AB88E527F4E79AF2C333E FAPESP - No. 2009/18219-3; No. 2011/06689-5 Pró-Reitoria de Graduação USP ArticleID:SMS12280 CNPQ - No. 146168/2011-9; No. 237320/2012-6 CAPES ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0905-7188 1600-0838 |
DOI: | 10.1111/sms.12280 |