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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