Stand tall holding a pair of dumbbells at your sides. Take a long step back with one leg, bending your front leg until your back knee gently touches the ground. Stand up and forward explosively, pause ...

This two part workout kicks off with a heavy compound ... pumping up your back and arms and stacking on size. JK Simmons Reveals Story Behind Viral Bicep Photo In part one, start with a ...

This two part workout kicks off with a heavy compound lift to build strength in the muscles of your back, including your lats, spinal erectors, rhomboids, rear delts and traps, before moving on to a ...