“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 ...

If you’re a newer runner, you’ve likely been bombarded with training plans discussing time on your feet and working on building up endurance and mileage. Maybe you’ve even heard about the benefits of ...

For your speed workout, try a fartlek run/walk: After a walking or easy running warmup, run hard for 30 seconds or as long as ...

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. While plenty of ...

This article synthesizes current evidence to show how beginners can initiate exercise safely by prioritizing movement quality ...