By Hugo Francisco de Souza Reviewed by Lauren Hardaker Oct 9 2025 Researchers have confirmed that a pre-workout dose of caffeine can measurably increase movement velocity and power output, especially in men and low-caffeine users, helping athletes fine-tune their training for maximum performance gains. Study: Effects of acute caffeine intake on muscular power during resistance exercise: a systematic review and meta-analysis. Image credit: Gabriele Paoletti/Shutterstock.com In a recent