Obliques: How to exercise these ab muscles to improve your core strength

In the second of a five-part series, Dana Santas shows how building strength in the side abdominal muscles can improve stability in movement and reduce low back pain.

​ In the second of a five-part series, Dana Santas shows how building strength in the side abdominal muscles can improve stability in movement and reduce low back pain. Read More Breaking News, Latest News and Videos | CNN