| Heart rate response to exercise and cardiorespiratory fitness of young women at high familial risk for hypertension: effects of interval vs continuous training. | |
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MedLine Citation:
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PMID: 21450597 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Exercise training is an effective intervention for treating and preventing hypertension, but its effects on heart rate (HR) response to exercise and cardiorespiratory fitness (CRF) of non-hypertensive offspring of hypertensive parents (FH+) has not been studied. We compared the effects of three times per week equal-volume high-intensity aerobic interval (AIT) and continuous moderate-intensity exercise (CME) on HR response to exercise and CRF of FH+. Forty-four young FH+ women (25.0 ± 4.4 years) randomized to control (CON; n = 12), AIT (80-90% of VO(2MAX); n = 16), or CME (50-60% of VO(2MAX); n = 16) performed a graded exercise test (GXT) before and after 16 weeks of follow-up to evaluate HR response to exercise and several parameters of CRF. Resting, maximal, and reserve HR did not change after the follow-up in all groups. HR recovery (difference between HR(MAX) and HR at 1 minute of GXT recovery phase) improved only after AIT (11.8 ± 4.9 vs. 20.6 ± 5.8 bpm, p < 0.01). Both exercise programmes were effective for improving CRF parameters, but AIT was more effective than CME for improving oxygen consumption at the respiratory compensation point (VO(2RCP); 22.1% vs. 8.8%, p = 0.008) and maximal effort (VO(2MAX); 15.8% vs. 8.0%, p = 0.036), as well as tolerance time (TT) to reach anaerobic threshold (TT(AT); 62.0 vs. 37.7, p = 0.048), TT(RCP) (49.3 vs. 32.9, p = 0.032), and TT(MAX) (38.9 vs. 29.2, p = 0.042). Exercise intensity was an important factor in improving HR recovery and CRF of FH+women. These findings may have important implications for designing exercise-training programmes for the prevention of an inherited hypertensive disorder. |
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Authors:
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Emmanuel G Ciolac; Edimar A Bocchi; Julia M D Greve; Guilherme V Guimarães |
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Publication Detail:
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Type: Comparative Study; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't Date: 2011-02-28 |
Journal Detail:
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Title: European journal of cardiovascular prevention and rehabilitation : official journal of the European Society of Cardiology, Working Groups on Epidemiology & Prevention and Cardiac Rehabilitation and Exercise Physiology Volume: 18 ISSN: 1741-8275 ISO Abbreviation: Eur J Cardiovasc Prev Rehabil Publication Date: 2011 Dec |
Date Detail:
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Created Date: 2011-11-17 Completed Date: 2012-03-12 Revised Date: 2012-04-18 |
Medline Journal Info:
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Nlm Unique ID: 101192000 Medline TA: Eur J Cardiovasc Prev Rehabil Country: England |
Other Details:
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Languages: eng Pagination: 824-30 Citation Subset: IM |
Affiliation:
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Institute of Orthopedics and Traumatology do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, Laboratory of Kinesiology, São Paulo, Brazil. egciolac@hcnet.usp.br |
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Analysis of Variance Brazil Exercise Test Exercise Therapy* Exercise Tolerance Female Genetic Predisposition to Disease Heart Rate* / genetics Heredity Humans Hypertension / genetics, physiopathology, prevention & control* Oxygen Consumption Pedigree Physical Fitness* Prospective Studies Respiration* / genetics Time Factors Treatment Outcome Young Adult |
| Comments/Corrections | |
Erratum In:
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Eur J Cardiovasc Prev Rehabil. 2012 Apr;19(2):285 |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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