Last year, WWDC25 inspired me to rewrite my strength-training app Reps & Sets in Swift so it could take advantage of Apple’s latest frameworks, like Foundation Models and Image Playground. It was a ...

For decades, fitness enthusiasts have argued over the ideal rep range for muscle growth, but understanding the science can ...

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, ...

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 ...

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 ...

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 ...

Once you’ve made those changes and the next clean rep still isn’t there, a small change in training method can help.

Fact checked by Nick Blackmer Adding in more weight-lifting sets at the gym can help build muscle and strength, but long ...

Properly managing training intensity could mean the difference between placing first in a competition or watching from the sidelines with an injury. For decades, the gold standard for prescribing ...