| Lower extremity blood flow and responses to occlusion ischemia differ in exercise-trained and sedentary tetraplegic persons. | |
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MedLine Citation:
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PMID: 8976309 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVE: To test whether lower extremity blood flow and hyperemic responses to vascular occlusion differ among electrically stimulated exercise trained and sedentary tetraplegic persons and subjects without tetraplegia (control). DESIGN: Blinded cross-sectional comparison, control group. SETTING: Academic medical center. PARTICIPANTS: Ten sedentary tetraplegic men, 10 tetraplegic persons previously habituated to electrically stimulated cycling exercise for 0.4 to 7 years, and 10 nondisabled controls. OUTCOME MEASURES: Subjects underwent quantitative Doppler ultrasound examination of the common femoral artery (CFA). End-diastolic arterial images and arterial flow-velocity profiles obtained at rest and following five minutes of suprasystolic thigh occlusion were computer digitized for analysis of heart rate (HR), CFA peak systolic velocity (PSV), CFA cross-sectional area (CSA), flow velocity integral (FVI), and computed CFA inflow volume (IV). RESULTS: No group main effects were observed for resting HR or FVI. At rest, trained tetraplegic men had 14.9% greater PSV, 29.8% larger CSA, and 51.3% greater IV (p values < .05) than sedentary tetraplegic subjects. Resting PSV and IV of the trained subjects did not differ from controls, although CSA was smaller than controls (p < .05). Following occlusion, PSV, CSA, and IV averaged 16.5%, 33.4%, and 65.1% greater for trained tetraplegics persons, respectively, than sedentary tetraplegic subjects (p values < .05). Only CSA differed between the control and the trained groups (p < .05). CONCLUSION: Tetraplegic persons conditioned by electrically stimulated cycling have greater lower extremity blood flow and hyperemic responses to occlusion than do their sedentary counterparts. |
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Authors:
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M S Nash; B M Montalvo; B Applegate |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Archives of physical medicine and rehabilitation Volume: 77 ISSN: 0003-9993 ISO Abbreviation: Arch Phys Med Rehabil Publication Date: 1996 Dec |
Date Detail:
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Created Date: 1997-01-16 Completed Date: 1997-01-16 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 2985158R Medline TA: Arch Phys Med Rehabil Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 1260-5 Citation Subset: AIM; IM |
Affiliation:
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Department of Orthopedics and Rehabilitation, University of Miami School of Medicine, FL, USA. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Blood Flow Velocity Cross-Sectional Studies Electric Stimulation Therapy Exercise* Femoral Artery / physiopathology, ultrasonography Humans Hyperemia / physiopathology* Leg / blood supply* Male Quadriplegia / physiopathology*, rehabilitation Regional Blood Flow Signal Processing, Computer-Assisted |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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