Literature DB >> 7775322

Relationship between MRI relaxation time and muscle fiber composition.

J A Houmard1, R Smith, G L Jendrasiak.   

Abstract

The relationship between nuclear magnetic resonance relaxation time obtained with magnetic resonance imaging (MRI) and muscle fiber composition of the lateral gastrocnemius was examined in 13 men. There was a positive correlation (r = 0.80, P < or = 0.001) between longitudinal relaxation time and the relative percentage of slow-twitch muscle fibers (type I). There was no relationship between transverse relaxation time and type I percentage (r = 0.17, P = 0.57). These results suggest that MRI longitudinal relaxation time can be used for the noninvasive estimation of muscle fiber composition in humans.

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Year:  1995        PMID： 7775322     DOI： 10.1152/jappl.1995.78.3.807

Source DB:  PubMed          Journal:  J Appl Physiol (1985)        ISSN： 0161-7567


  13 in total

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