From: Effects of repeated lengthening contractions on skeletal muscle adaptations in female rats
Soleus | Plantaris | Medial gastrocnemius | ||||
---|---|---|---|---|---|---|
Control | Trained | Control | Trained | Control | Trained | |
Fiber area (μm2) | 3,039 ± 95 | 2,653 ± 143* | 3,026 ± 88 | 3,191 ± 112* | 3,842 ± 154 | 2,840 ± 189* |
ECM content (%) | 15.1 ± 1.0 | 17.4 ± 0.7† | 13.3 ± 0.6 | 15.5 ± 0.6* | 12.3 ± 0.4 | 17.5 ± 1.1* |
Collagen content (μg/mg dry wt) | 26.9 ± 1.5 | 33.9 ± 3.5* | 18.6 ± 1.6 | 24.7 ± 0.9* | 10.0 ± 0.5 | 13.1 ± 1.2* |
Collagen crosslinks (mol HP/mol collagen) | 0.27 ± 0.01 | 0.28 ± 0.02 | 0.24 ± 0.01 | 0.25 ± 0.01 | 0.35 ± 0.03 | 0.32 ± 0.02 |