After a two-year plateau, I built muscle within two months.

Can lighter weights build as much muscle as heavy lifting? Experts say the answer may surprise anyone trying to maximize ...

For years, resistance training was often framed with a simple hierarchy: heavy weights for low reps to build strength and ...

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 ...

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 ...

Researchers examined studies that looked at the benefits of strength training for running performance – particularly running economy – and found that it does improve efficiency. Comparing heavy ...

You’ve been hitting the gym consistently, your nutrition is dialed in, and for months, the numbers on your barbell have ...

Experts recommend giving a muscle at least three days to recover after each workout. “Generally, training a muscle 1–2 times ...

When you’re a fitness newbie, there are a lot of terms to learn—rep, set, volume, AMRAP, EMOM—I can’t blame you if you’re wondering what it all means. When it comes to the names of types of training, ...

If you’re struggling to advance your big lifts, or your form needs some refinement, there’s a strength training technique that may help you get closer to achieving your goal: pause reps. Typically, ...

Reps & Sets works on iPad, iPhone, and Apple Watch. Reps & Sets 26 is a brand-new strength training app designed exclusively for iPhone, iPad and Apple Watch. It was developed by a long-time Cult of ...

First I vibe-coded Reps & Sets to take advantage of Apple's latest frameworks. Then the suggestions started rolling in.