| Different effects of strenuous eccentric exercise on the accumulation of neutrophils in muscle in women and men. | |
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MedLine Citation:
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PMID: 10552266 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The purpose of this study was to evaluate the sex differences in delayed onset muscle soreness (DOMS), torque, and accumulation of technetium-99m (Tc-99m) neutrophils in eccentric-exercised muscle. A group of 10 female and 12 male subjects took part in this study. The subjects completed a pre-test using the descriptor differential scale (DDS) to describe DOMS, and tests of concentric and eccentric torque of the right quadriceps. A volume of 100 ml of blood was taken by venipuncture for neutrophil labelling in the early morning of the exercise day. The Tc-99m neutrophils were re-infused intravenously before the eccentric exercise. The exercise stimulus consisted of 300 eccentric repetitions of the right quadriceps muscles. Radionuclide images of both quadriceps muscles (lateral views) were taken at 2 and 4 h. The DDS, and concentric and eccentric torques of the quadriceps were subsequently evaluated at 0 h, 2, 4, 20 and 24 h post-exercise. The presence of Tc-99m neutrophils was greater in the exercised leg than the non-exercised leg at 2 and 4 h post-exercise (P </= 0.013) and greater in the exercised leg of the women compared to the men at 2 h (P = 0.03). The DOMS had increased post-exercise (P < 0.001) and torque had decreased post-exercise (P </= 0.002) but the patterns were different between the sexes. We concluded that the sex influences the presence of Tc-99m neutrophils in the exercised muscle following eccentric exercise. In addition, different patterns of DOMS and torque were observed between the sexes after eccentric exercise, and require further investigation. |
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Authors:
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D L MacIntyre; W D Reid; D M Lyster; D C McKenzie |
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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: European journal of applied physiology Volume: 81 ISSN: 1439-6319 ISO Abbreviation: Eur. J. Appl. Physiol. Publication Date: 2000 Jan |
Date Detail:
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Created Date: 2000-01-13 Completed Date: 2000-01-13 Revised Date: 2006-11-15 |
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: 47-53 Citation Subset: IM |
Affiliation:
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School of Rehabilitation Sciences, University of British Columbia, T325 2211 Wesbrook Mall, Vancouver, BC V6T 2B5, Canada. macintyr@rehab.ubc.ca |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Exercise / physiology* Female Humans Leg Male Muscle, Skeletal / cytology, physiopathology Neutrophils / cytology*, physiology Pain / physiopathology Reaction Time Sex Characteristics Technetium / pharmacokinetics Torque |
| Chemical | |
Reg. No./Substance:
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7440-26-8/Technetium |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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