The area of the body, which is commonly referred to as the core, is your midsection and it involves all your muscles in that area including the front, back and sides. The core includes the traverse abdominis (TVA), erector spinae, obliques and your lower lats.
And why is strengthening the core so important?
Weak core muscles contribute to all kinds of problems in the body, the most prevalent of which is lower back pain. By strengthening the muscles that help support the spine and improve posture, you can dramatically decrease the symptoms of lower back pain.