“Isometrics are a powerful training tool, especially for runners,” says Speer. “Holding positions for 30 to 60 seconds, such as lunges and single-leg balances help strengthen muscles, connective ...

SO YOU'VE DECIDED it's time to get in shape and start lifting weights. That's great—taking the first step and making a choice to start a new routine is the only way you can make a change. How exactly ...

Plus, how it differs from strength training and expert tips to program workouts for both approaches.

Jason Walsh has become one of the go-to trainers in Hollywood for getting clients stronger than ever. He's worked with Emma Stone, Brie Larson, and Mandy Moore (to name a few), and he's also the ...

Plus, how to programme workouts for each approach ...