Effect of Clenbuterol on Muscle Activity During Exercise in Standardbred Horses

•The effects of short-term (single dose) clenbuterol administration on locomotory muscle activity were studied•No statistically significant effects were found on activity of the carpi radialis extensor, semitendinosus, and longissimus dorsi•Short-term clenbuterol administration appears to have no effect on athletic performance through locomotory muscle activity