I had always jogged, and thought I was in shape, but quickly realized I had no arm or core strength. After the first couple of weeks of boot camp with Ali, I started to see muscles I never knew I had! I always thought a flat stomach and a strong core was unattainable for me after having kids, but Ali's effective work-outs proved me wrong.... I can't say enough - it's truly life altering to work with Ali and Mark!