Tracking fitness data is key for assessing your health, designing the right training program for your goals, and gauging your progress throughout your training routine. When it comes to measuring ...

Your metabolism turns the calories you consume into energy your body needs to function. Read on to learn about what metabolic testing involves, and how you can use your results. The higher your ...

All products featured on GQ are independently selected by GQ editors. However, when you buy something through our retail links, Condé Nast may earn an affiliate commission. V02 max—the measure of how ...

If you think of ways to measure your overall health, certain benchmarks likely come to mind. The bloodwork you get done at your annual physical, maybe. Your body mass index. Perhaps how much you can ...

It’s a grim dilemma for lung cancer patients and their doctors: Surgery is often the only option for survival, but many sufferers are too sick for surgery. Or are they? That’s the question at the ...

The burn. The Bane mask. The bleak possibility of being waterboarded by vomit. Whether you’ve wheezed through one first-hand, or cocked a cautious eyebrow from afar, more and more men are learning of ...

There are a few good reasons why we turn to interval training to boost our speed and performance: It’s efficient; it’s rewarding, and it works. “A major benefit of interval training is that you can ...

V02 max—the measure of how efficiently your body utilizes oxygen during exercise—is widely considered to be the definitive indicator of cardiovascular fitness. However, this powerful metric remains ...