What Are Eccentric and Concentric Contractions? Eccentric contractions occur when a muscle lengthens under load, such as ...

If you want to see results, many different programs and exercises work,” Arnold says. “The key to results is consistency and ...

Unlock your biggest, strongest upper body yet with this Chris Bumstead-approved workout for sleeve-splitting arms.

In 1973, a trial in Colorado caused quite a stir in bodybuilding circles. The inventor of Nautilus machines and founder of ...

I knew heavy resistance training was crucial with age to build muscle and maintain bone density, so as I approached my 50s ...