Relationship between MRI relaxation time and muscle fiber composition

J A Houmard1, R Smith, G L Jendrasiak

  • 1Human Performance Laboratory, East Carolina University, Greenville, North Carolina 27858, USA.

Summary

Magnetic resonance imaging (MRI) can noninvasively estimate muscle fiber type. Longitudinal relaxation time measured by MRI positively correlated with slow-twitch (Type I) muscle fibers in the gastrocnemius muscle.

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