THE LEG CURL is one of the best machines—and best methods, period—for building hamstring strength and size. There are two types of hamstring curl machines, and you're likely to find one or the other ...

When you think of biceps, do you think bulging like Arnold Schwarzenegger? Or maybe that signature double flex pose comes to mind? Whatever image you conjure up, biceps are more than just for looks.

In men, muscular arms are often seen as a status symbol. However, many women also desire toned upper arms. The good news: ...