Effects of aging on muscle mechanical function and muscle fiber morphology during short-term immobilization and subsequent retraining.

  title={Effects of aging on muscle mechanical function and muscle fiber morphology during short-term immobilization and subsequent retraining.},
  author={Lars Gr{\o}ndahl Hvid and Per Aagaard and Lene Justesen and Monika L. Bayer and Jesper L{\o}vind Andersen and Niels {\O}rtenblad and Michael Kjaer and Charlotte Suetta},
  journal={Journal of applied physiology},
  volume={109 6},
Very little attention has been given to the combined effects of aging and disuse as separate factors causing deterioration in muscle mechanical function. Thus the purpose of this study was to investigate the effects of 2 wk of immobilization followed by 4 wk of retraining on knee extensor muscle mechanical function (e.g., maximal strength and rapid force capacity) and muscle fiber morphology in 9 old (OM: 67.3 ± 1.3 yr) and 11 young healthy men (YM: 24.4 ± 0.5 yr) with comparable levels of… 

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