New insights from fitness experts reveal that the number of reps you do may be less rigid—and more strategic—than you think.

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Getty Images ...

When you lift a weight, how many times should you lift it? Supposedly, there’s a correct “rep range” to use to build strength, and a different rep range to build muscle size, or endurance, or to “tone ...

New research suggests the number of reps you do may matter far less than most people think.

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." PLENTY OF PLANNING goes into a well designed strength training routine. You'll determine the number of ...