Fitness Pro Superhuman Troy teaches three calf exercises that optimize lower-leg strength and maximize muscle growth in ...

Natural muscle fibers are made up of spring-like proteins that can contract and stretch without losing their original form, dissipate mechanical energy as heat and maintain incredible tensile strength ...

What made Vonn's injuries especially serious was that she had developed a condition known as compartment syndrome — when ...

Lindsey Vonn credited her doctor with saving her leg from amputation in an Instagram video posted Monday, going in-depth on the severity of the injury she suffered in her devastating crash at the ...

Friends don't let friends skip legs ...

Though it might feel great to finish a workout and see "calories burned" pop up on your smartwatch, that number is often surprisingly inaccurate, with estimated error rates of 30%–80%. The watch's ...