Learn more about this metric and the best training sessions to add to your schedule to boost your cardio fitness.

These workouts from Woods will teach your bod to fire on all cylinders. On the effort scale of 1 to 10, 10 is your all out ...

Short on time? You don’t need an hour-long block on your calendar to work out. You don’t even need a gym membership. But you do need a plan. Bench-pressing for half an hour isn’t the best use of your ...

In order to get faster, you have to practice running fast. Of course, this isn’t as simple as tackling all your miles at a higher pace. Instead, you need to incorporate running speed workouts into ...

Sore muscles don’t build strength – recovery does. While most gym-goers obsess over workout intensity, elite athletes know the real gains happen between sessions. Understanding how to accelerate ...

The Secret to Riding Faster Isn’t Always More Time. These Quick, Indoor-Trainer Workouts Prove It.

You've racked the bar, crushed your last set, and ready to keep hammering. Instead of heading straight for a protein shake, imagine sliding into a sauna for 20 ...