Exercises with the Swiss ball such as walk/roll outs really force you to keep your core activated and help reduce your waistline size by tightening your stomach muscles. <br /><br />Master the Basic Core Exercises before You even Attempt anything Advanced <br /><br />http://AskTheTrainer.com/best-core-exercises.html <br /><br />Personal Trainer Michael Behnken, MS, CSCS <br /><br />http://AskTheTrainer.com
