Your back is the main support structure of your entire body. Along with your muscles and joints, it allows you to move (sit, stand, bend, etc.) and to bear weight. But the back is also a delicate, finely balanced structure that can be easily injured if it is not cared for properly. Knowing the basics of back care can make the difference between a healthy back and an aching one!
A Healthy Back
The back (or spinal column) is composed of 24 moveable bones called vertebrae. Between each vertebrae is a cushion-like pad called a disc that absorbs shock. These vertebrae and discs are supported by ligaments and muscles that keep the back properly aligned in three balanced curves. When any of these various parts becomes diseased, injured or deconditioned, back problems and pain are almost certain to follow.
A Balanced Back
A healthy back is a balanced back--your cervical (neck), thoracic (chest) and lumbar (lower back) curves are all properly aligned. (You know your back is aligned properly when your ears, shoulders and hips are "stacked" in a straight line.) A healthy back is also protected and supported by flexible "elastic" discs and well-conditioned muscles.
An Aching Back
A number of physical conditions, such as curvature of the spine (scoliosis), arthritis and herniated (ruptured) disks, can cause back pain, but the majority of backaches are due to poor posture and weak supporting muscles. Improper posture places excess stress on the spinal column. Over time, poor posture can lead to sudden or recurrent back pain. Weak muscles contribute to, and are often responsible for, poor posture since they cannot adequately support the spinal column.