| Cardiovascular responses to static extension and flexion of arms and legs. | |
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MedLine Citation:
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PMID: 16633826 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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This study compared cardiovascular responses to static extension and flexion exercises at four upper and lower limb joints. Eight males performed a 2 min static contraction at 30% of maximal voluntary torque followed immediately by 2 min post-exercise muscle ischaemia (PEMI) using each of four joints: the wrist, elbow, ankle, and knee. In the PEMI, an occlusion cuff placed around the proximal portion of the exercising muscle was inflated to 250 mmHg immediately before the cessation of exercise. Mean arterial pressure (MAP), heart rate (HR), calf blood flow, and calf vascular conductance (CVC) in the non-exercised calf were measured. There was a significant interaction for direction of movement (extension vs. flexion) and limb (upper vs. lower) in HR and CVC during both exercise and PEMI; extension in the wrist and elbow evoked a greater increase in HR and a greater decrease in CVC than flexion, whereas flexion in the ankle and knee elicited a greater increase in HR and a greater decrease in CVC than extension. These results suggest that the cardiovascular responses to extension and flexion differ between arms and legs, partly arising from the activation of the muscle metaboreflex. |
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Authors:
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Ken Tokizawa; Masaki Mizuno; Naoyuki Hayashi; Isao Muraoka |
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Publication Detail:
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Type: Clinical Trial; Journal Article Date: 2006-04-22 |
Journal Detail:
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Title: European journal of applied physiology Volume: 97 ISSN: 1439-6319 ISO Abbreviation: Eur. J. Appl. Physiol. Publication Date: 2006 May |
Date Detail:
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Created Date: 2006-06-28 Completed Date: 2006-08-29 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 100954790 Medline TA: Eur J Appl Physiol Country: Germany |
Other Details:
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Languages: eng Pagination: 249-52 Citation Subset: IM |
Affiliation:
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Graduate School of Human Sciences, Waseda University, Tokorozawa, Saitama, Japan. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Ankle / blood supply, physiology Arm / blood supply, physiology* Blood Pressure / physiology* Elbow / blood supply, physiology Exercise / physiology* Heart Rate / physiology* Humans Ischemia / physiopathology Knee / blood supply, physiology Leg / blood supply, physiology* Male Muscle, Skeletal / blood supply, physiology Regional Blood Flow / physiology Wrist / blood supply, physiology |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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