Muscle atrophy and weakness with aging: contraction-induced injury as an underlying mechanism.

@article{Faulkner1995MuscleAA,
  title={Muscle atrophy and weakness with aging: contraction-induced injury as an underlying mechanism.},
  author={J. A. Faulkner and Susan V. Brooks and Eileen Zerba},
  journal={The journals of gerontology. Series A, Biological sciences and medical sciences},
  year={1995},
  volume={50 Spec No},
  pages={124-9}
}
In old compared with young animals, muscle mass is decreased by 30% to 40%, and maximum force and power are decreased to an even greater extent. The age-related declines in muscle mass and muscle function are similar to those that occur with decreased physical activity. Despite the similarities, we conclude that the losses in muscle mass, force, and power are not due solely to old animals being less active, but rather accrue from intrinsic age-related changes in muscles and in muscle fibers… CONTINUE READING

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