VO2 max measures your body’s maximum oxygen use and relates to longevity and health. Army’s H2F system uses HIIT to improve VO2 max and overall health. Consistent HIIT, 2–3 times weekly, improves VO2 ...

A structured circuit with four sets and five exercises can transform your training. Discover how this full body power workout helps improve strength, endurance, and overall performance. #PowerTraining ...

Avoid the post-daylight saving time, end-of-the-week, beatdown feeling. This week does not have to be a slog. Proactively adjusting your schedule before and after the start of daylight saving time can ...

You don’t have to be a gym bro to get strong. Three ex-Tesla engineers made a beautiful bar velocity tracker for every kind of weight lifter.

Alan Ritchson surprised his fans, who believed they had already seen him at his physical best and in action at Reacher, but he recently pushed himself further. The actor has tested his limit for his ...

View post: Hitting Plateaus? Why Trainers Say You Might Need to 'Periodize Recovery' for Stressful Seasons and Heavy Training Blocks Many weightlifters obsess over their workouts. They cycle through ...

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. Peloton’s class ...

Bodybuilding legend and former four-time Mr. Olympia Jay Cutler broke down his back workout for front-to-back thickness and a better V-taper.