| Exercise conditioning in middle-aged men after 10 days of bed rest. | |
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MedLine Citation:
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PMID: 6861303 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Of 12 healthy men with a mean age 50 +/- 4 years who had been at bed rest for 10 days, six were randomly assigned to perform individually prescribed physical exercise daily for 60 days after bed rest (exercise group) and six simply resumed their customary activities (control group). Exercise group subjects were significantly more active than control subjects during this interval (p less than .05). Two classic training effects observed in the 60 days after bed rest were significantly larger among exercise than among control group subjects; compared with values immediately after bed rest, heart rate at a constant submaximal workload declined by 36 +/- 11 beats/min in the exercise group vs 16 +/- 8 beats/min in the control group and peak oxygen consumption increased by 4.8 +/- 4.2 vs 2.2 +/- 5.0 ml/kg/min (both p less than .05). Despite these differences in the cardiovascular response to exercise, peak oxygen consumption in both groups returned to before-bed rest levels by 30 days after bed rest, and this was accompanied by significant (p less than .05) and similar increases in resting left ventricular end-diastolic and stroke volumes in both groups. Simple resumption of usual physical activities after bed rest was as effective as formal exercise conditioning in restoring functional capacity to before-bed rest levels. |
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Authors:
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R F DeBusk; V A Convertino; J Hung; D Goldwater |
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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; Research Support, U.S. Gov't, Non-P.H.S.; Research Support, U.S. Gov't, P.H.S. |
Journal Detail:
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Title: Circulation Volume: 68 ISSN: 0009-7322 ISO Abbreviation: Circulation Publication Date: 1983 Aug |
Date Detail:
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Created Date: 1983-08-26 Completed Date: 1983-08-26 Revised Date: 2007-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0147763 Medline TA: Circulation Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 245-50 Citation Subset: AIM; IM; S |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Bed Rest
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adverse effects* Body Weight Echocardiography Evaluation Studies as Topic Exercise Therapy* Heart Rate Humans Middle Aged Myocardial Infarction / rehabilitation Oxygen Consumption |
| Grant Support | |
ID/Acronym/Agency:
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HL 18907/HL/NHLBI NIH HHS |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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