| A novel method for the performance of isometric exercise in the home. | |
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MedLine Citation:
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PMID: 16195031 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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There is a paucity of research on devices suitable for home-based isometric exercise. Our aim was to compare cardiovascular responses to isometric exercise using novel and established methods. Ten individuals (age 34.0 +/- 8.5 years, mass 68.2 +/- 10.4 kg, height 1.72 +/- 0.09 m; mean +/- s) performed three different isometric exercise protocols with 48 h between each. Each protocol involved four repeated exercise bouts of 2 min at 30% maximum voluntary contraction force using alternate legs (transducer), alternate arms (transducer), or alternate arms (novel device). Systolic blood pressure, diastolic blood pressure, mean arterial blood pressure and heart rate were measured every 30 s. The highest (peak) values during each 2 min bout of exercise were recorded (peak systolic blood pressure, peak diastolic blood pressure, peak mean arterial blood pressure and peak heart rate). At the end of each 2 min exercise bout, the participants rated their perceived discomfort using Borg's CR-10 scale. There was a statistically significant difference in peak systolic blood pressure between isometric arm flexion using the force transducer and the novel device [158.1 +/- 10.8 vs. 149.1 +/- 13.9 mmHg (mean +/- s); P = 0.02]. Further analysis showed that peak systolic blood pressure was on average 9 mmHg higher using the force transducer with limits of agreement of - 15.97 to 33.97 mmHg. Analysis of the peak diastolic blood pressure, peak mean arterial blood pressure, peak heart rate and CR-10 data revealed no statistically significant differences between the three protocols. These results suggest that this novel, home-based method elicited similar cardiovascular responses during isometric exercise to those of established laboratory-based methods. However, the lower peak systolic blood pressure using the modified scales warrants further investigation before this method is used widely in the home. |
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Authors:
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Jonathan D Wiles; Damian Coleman; Martin Dunford; Ian Swaine |
Publication Detail:
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Type: Clinical Trial; Comparative Study; Journal Article |
Journal Detail:
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Title: Journal of sports sciences Volume: 23 ISSN: 0264-0414 ISO Abbreviation: J Sports Sci Publication Date: 2005 Aug |
Date Detail:
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Created Date: 2005-09-30 Completed Date: 2005-12-12 Revised Date: 2008-11-21 |
Medline Journal Info:
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Nlm Unique ID: 8405364 Medline TA: J Sports Sci Country: England |
Other Details:
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Languages: eng Pagination: 795-803 Citation Subset: IM |
Affiliation:
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Department of Sport Science, Tourism and Leisure, Canterbury Christ Church University College, Canterbury, UK. j.d.wiles@cant.ac.uk |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adult Arm / physiology Blood Pressure / physiology Cardiovascular Physiological Phenomena* Exercise / physiology* Exercise Therapy / methods* Female Heart Rate / physiology Humans Isometric Contraction / physiology* Leg / physiology Male Muscle, Skeletal / physiology* Patient Satisfaction Rest / physiology Self Care / methods* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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