In this video Frank Zane talks about why doing vacuums are essential in posing & in everyday bodybuilding. Watch the Full Episode! ► https://www.youtube.com/watch?v=D9Eq-Jk85j0&list=PLqq4ttPMAqtujOUC4fZNbsV2qL34bDNeC&index=4 Watch Other Episodes! ► https://www.youtube.com/watch?v=b94nxjwljqs&list=PLqq4ttPMAqtujOUC4fZNbsV2qL34bDNeC