Metabolic consequences of exercise-induced muscle damage.

Metabolic consequences of exercise-induced muscle damage. Research Abstract Details 

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Metabolic consequences of exercise-induced muscle damage. Abstract Text:

Jason C Tee,Andrew N Bosch,Mike I Lambert,

Exercise-induced muscle damage (EIMD) is commonly experienced following either a bout of unaccustomed physical activity or following physical activity of greater than normal duration or intensity. The mechanistic factor responsible for the initiation of EIMD is not known; however, it is hypothesised to be either mechanical or metabolic in nature. The mechanical stress hypothesis states that EIMD is the result of physical stress upon the muscle fibre. In contrast, the metabolic stress model predicts that EIMD is the result of metabolic deficiencies, possibly through the decreased action of Ca(2+)-adenosine triphosphatase. Irrespective of the cause of the damage, EIMD has a number of profound metabolic effects. The most notable metabolic effects of EIMD are decreased insulin sensitivity, prolonged glycogen depletion and an increase in metabolic rate both at rest and during exercise. Based on current knowledge regarding the effects that various types of damaging exercise have on muscle metabolism, a new model for the initiation of EIMD is proposed. This model states that damage initiation may be either metabolic or mechanical, or a combination of both, depending on the mode, intensity and duration of exercise and the training status of the individual.

Metabolic consequences of exercise-induced muscle damage. Publishing Authors By Initials

JC Tee,AN Bosch,MI Lambert,

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Metabolic consequences of exercise-induced muscle damage. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Sports medicine (Auckland, N.Z.)

VOLUME: 37

Page Numbers: 827-36

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ISSN: 0112-1642

DAY: 24

MONTH: 09

YEAR: 2007

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LANGUAGE: eng

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AFFILIATION: MRC/UCT Research Unit for Exercise Science and Sports Medicine, Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa. jasonctee@gmail.com

Country: New Zealand

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MEDLINETA: Sports Med

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