The effect of dietary administration of clenbuterol on soleus and extensor digitorum longus muscles was studied after 4 and 21 days. Both muscles showed an increase in wet weight with no significant change in total fibre number. After 4 days fibre cross-sectional areas were increased in soleus, but not in extensor digitorum longus, and after 21 days there was a change in fibre frequencies in extensor digitorum longus but not soleus muscles.
- muscle fibres
Maltin, C. A., Delday, M. I., & Reeds, P. J. (1986). The Effect of a Growth-Promoting Drug, Clenbuterol, on Fiber Frequency and Area in Hindlimb Muscles from Young Male-Rats. Bioscience Reports, 6(3), 293-299. https://doi.org/10.1007/BF01115158