To boost your running performance, you consider strength training, but now you’ve got two major questions: Is that effort really necessary? And should I do high reps at a lower weight or low reps at a ...

To boost your running performance, you consider strength training, but now you’ve got two major questions. Is that effort really necessary? And should I do high reps at a lower weight or low reps at a ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." As a fitness professional and doctor of physical therapy, I’ve always been active. I spent most of my 20s ...