For fitness-minded folks, muscle testing can sound pretty intriguing. But it turns out that it has little to do with fitness...or even muscles. On a basic level, muscle testing looks at a muscle and ...

For fitness-minded folks, muscle testing can sound pretty intriguing. But it turns out that it has little to do with fitness...or even muscles. On a basic level, muscle testing looks at a muscle and ...

But what if I told you that you don't need to visit a fancy lab or use strange equipment to get an idea of how strong your leg muscles are? That's right! The answer might just be in the most common ...

After running for over a decade, I wanted to see how healthy my heart is. I got an active metabolic assessment at Life Time, measuring my VO2 max and heart rate. I also learned which running speeds ...

Over 50? Hitting 20–25 pushups (men) or 12–15 (women) is elite. See the standard—and how to build to it safely and fast.