Mike Carroll is a TPI Certified Trainer and Golf Fitness Professional.  He is also a Strength and Conditioning expert degreed in Sports and Exercise Science.  Mike joins 'On the Mark' to discuss his 'Five Pillars of Better Golf Fitness' for Better Golf.  He also addresses issues like lower back pain and injury, and the value of proper athletic posture and how it can benefit the golf swing and the golfer's ability to shallow the shaft on the downswing.