This 18-minute dumbbell workout redefines upper body training by blending strength and cardio for rapid gains. Discover how ...

In less than 20 minutes, you can sculpt your arms and abs with this upper body dumbbell workout, all while getting your heart ...

Plus, because it combines strength and cardio, it’s a great ... lower body to rest while you focus on upper body strength. This is one of the ways circuit training distinguishes itself from ...

Not only is circuit training a great substitute for ordinary cardio, it also helps tone your ... Make sure you include upper body (chest, arms, back) exercises as well as those that target your ...