That post-workout soreness can be comforting sign that you’ve pushed yourself hard enough to get results. But if you pop an ibuprofen to combat the discomfort you could be undoing all your hard work. A new study published in the Journal of Applied Physiology has found that ibuprofen inhibits the human muscle signaling responses to resistance exercise by preventing the body from manufacturing prostaglandins. Prostaglandins-a type of hormone-play many roles in the body, including stimulating muscle healing, and therefore growth.
An earlier study from the College of Kinesiology, University of Saskatchewan, Canada, found that high doses of ibuprofen inhibit muscle protein synthesis after strength training. Additionally, they found that ibuprofen and other NSAIDs (Non-Steroidal Anti-Inflamatory Drugs) do nothing to prevent muscle soreness or stiffness.
Instead of taking a pain killer, have some protein post-workout to help your body repair and build muscle. Researchers from Iowa State University, US, found that post-exercise protein supplements decreased muscle soreness.