Roll before you run. Using a foam roller on your muscles during a warm-up may help you power through your workout, according to research in the Journal of Strength and Conditioning Research. People who foam-rolled their legs, upper body and lower back for 10 minutes before exercising felt 
less fatigued while doing 
agility drills than those who didn’t roll it out. Translation: you may be able to exercise longer and harder, says study author Dr Disa Hatfield.