One of the most important arm muscles is the triceps brachii (the triceps, for short). You use your triceps to extend your arm. It opposes the biceps muscle, which is used to flex the arm. You also ...

Your hamstrings are made up of three muscles: the biceps femoris, semimembranosus, and semitendinosus. And they work hardest when you pull your leg up from the bottom of the pedal stroke. But they’re ...

Fitness icon Denise Austin marked National Fitness Month by unveiling four easy, equipment-free exercises to prepare for summer. Her tips arrive alongside expert guidance on six types of stretching, ...