Athletes have debated the "perfect" rep range for decades. Should you stick to heavy sets of 8-10 reps for maximum strength? Or venture into higher rep territory for endurance benefit? Groundbreaking ...

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 ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. April 10, 2026 Add as ...