WHEN IT COMES to training your core muscles, most guys tend to value lots of movement. They'll rip through reps of situps, leg lifts, and twists; they might even cycle their legs back and forth like ...

A girl can get supertoned, sculpted arms without a barbell. Here are the most effective bodyweight exercises you can (and should!) do for strong arms. Start in a plank position with your arms and legs ...

The basic plank is intense enough, targeting the upper body and core. But you're tough and can handle way more than a little old plank, so let's make it more challenging by adding some heart-pumping ...