The main muscles recruited when performing a pullup are the back (specifically the rhomboids and lats ), arm muscles including the posterior deltoids and biceps, and the core. Here are some of the ...

Ditch crunches. Try 6 standing moves that burn more calories, tighten your core, and slim a stubborn belly after 40.

WASHINGTON - If you’ve ever tried to step over a suitcase, climb the stairs with tired legs, or crouch down to pet your dog without wobbling, you already understand the value of a strong, stable lower ...