By Dr. Liji Thomas, MD Reviewed by Lauren Hardaker Sep 11 2025 Warming up before exercise may not increase your overall strength, but new research shows it gives your muscles the speed and explosive power needed for rapid movements. Study: The effect of muscle warm-up on voluntary and evoked force-time parameters: A systematic review and meta-analysis with meta-regression . Image credit: PeopleImages/Shutterstock.com Muscle warm-ups before beginning exercise improve contractility; there is