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Table 1 Quantitative morphology for muscles of mice exposed to plantarflexor SSC training

From: Agonist muscle adaptation accompanied by antagonist muscle atrophy in the hindlimb of mice following stretch-shortening contraction training

  Non-trained Plantarflexion SSC-trained
PLT
 Non-degenerative muscle fibers (%) 86.7 ± 0.9 84.5 ± 0.5
 Degenerative muscle fibers (%) 0.0 ± 0.0 0.0 ± 0.0
 Non-cellular interstitium (%) 12.2 ± 0.7 14.3 ± 0.5*
 Cellular interstitium (%) 0.8 ± 0.1 1.3 ± 0.1*
 Centrally nucleated fibers (%) 4.0 ± 0.9 14.0 ± 5.2
TA
 Non-degenerative muscle fibers (%) 88.2 ± 0.5 83.2 ± 1.4*
 Degenerative muscle fibers (%) 0.0 ± 0.0 0.0 ± 0.0
 Non-cellular interstitium (%) 11.1 ± 0.5 15.2 ± 1.3*
 Cellular interstitium (%) 0.7 ± 0.1 1.6 ± 0.2*
 Centrally nucleated fibers (%) 1.5 ± 0.7 17.5 ± 5.7*
  1. Sample sizes were N = 9 per group. Percentage refers to percentage of tissue. Values are means ± SE. *Different from non-trained muscle, P < 0.05