A recent study suggests that the most popular triceps isolation move may not be the most effective for building size—and a ...

A simple yet powerful arm workout designed by a U.S.-based fitness expert to build lean muscle at home or in the gym, using ...

To build arm size, strength, and muscle, you need to lift heavy and you need to lift hard. But the underrated key in the arm-muscle-building equation is one more idea, too: Time-under-tension. Your ...