| Physical training and heart rate and blood pressure variability: a 5-yr randomized trial. | |
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MedLine Citation:
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PMID: 14726297 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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We studied the effect of regular physical activity on cardiac and vascular autonomic modulation during a 5-yr controlled randomized training intervention in a representative sample of older Finnish men. Heart rate variability (HRV) and blood pressure variability (BPV) are markers of cardiac and vascular health, reflecting cardiac and vascular autonomic modulation. One hundred and forty randomly selected 53- to 63-yr-old men were randomized into two identical groups: an intervention (EX) group and a reference (CO) group, of which 89 men remained until the final analysis (EX: n = 47; CO: n = 42). The EX group trained for 30-60 min three to five times a week with an intensity of 40-60% of maximal oxygen consumption. The mean weekly energy expenditure of the training program for the 5-yr training period was 3.80 MJ, and 71% of the EX group exceeded the mean. The EX group had a significantly (P < 0.01) higher oxygen consumption at ventilatory aerobic threshold (VO2VT) than the CO group at the 5-yr time point. VO2VT had a tendency to increase in the EX group and decrease in the CO group (interaction P < 0.001) from the baseline to the 5-yr time point. Peak performance did not change. Low-frequency power of R-R interval variability decreased in the EX group (P < 0.01, by 6%) from the baseline to the 5-yr time point. BPV did not change. In conclusion, low-intensity regular exercise training did not prevent HRV from decreasing or change BPV in 5 yr in older Finnish men. |
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Authors:
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Arja L T Uusitalo; Tomi Laitinen; Sari B Väisänen; Esko Länsimies; Rainer Rauramaa |
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Publication Detail:
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Type: Clinical Trial; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't Date: 2004-01-15 |
Journal Detail:
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Title: American journal of physiology. Heart and circulatory physiology Volume: 286 ISSN: 0363-6135 ISO Abbreviation: Am. J. Physiol. Heart Circ. Physiol. Publication Date: 2004 May |
Date Detail:
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Created Date: 2004-04-09 Completed Date: 2004-05-21 Revised Date: 2008-11-21 |
Medline Journal Info:
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Nlm Unique ID: 100901228 Medline TA: Am J Physiol Heart Circ Physiol Country: United States |
Other Details:
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Languages: eng Pagination: H1821-6 Citation Subset: IM |
Affiliation:
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Department of Clinical Physiology and Nuclear Medicine, Kuopio University Hospital, 70211 Kuopio, Finland. arja.uusitalo-koskinen@kuh.fi |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Anthropometry Blood Pressure* Energy Metabolism Heart / physiology Heart Rate* Humans Male Middle Aged Oxygen Consumption Physical Education and Training* Respiratory Physiological Phenomena |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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