Run faster and more efficiently with these moves.

“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 ...

Slow-motion strength training is easier on joints and connective tissue, which may reduce risk of injury. The high-intensity workout is just 20 minutes, once a week. Seniors swear by the routine, but ...