The Importance of Posture

Illustration of postural balance, stability, control and load distribution.

Posture is not simply about whether we stand straight. It reflects how the body uses the bones, joints, muscles and nervous system to maintain stability, perform movements and distribute loads. Good posture does not mean perfect symmetry either. What truly matters is whether the body can adapt with stability and flexibility and transfer force efficiently.

1. Posture Affects Load Distribution

Posture and movement change how forces pass through the body. However, a particular spinal posture does not by itself establish the cause of pain. Reviews show mixed associations between posture and low back pain, without a clear causal consensus. Varying positions and adapting activity to comfort and capacity can be more useful than pursuing one “perfect” posture. [1]

2. The Body Works as a Whole

Muscles and joints do not work independently. Changes in foot control may affect the knees; the position of the hips and pelvis may affect the lower back; and changes in the rib cage and shoulder blades may affect the shoulders and neck. Therefore, the place where pain appears is not necessarily where the problem originally began.

3. Scoliosis May Affect the Rib Cage and Internal Organ Function

Scoliosis is not only a sideways curvature of the spine. It often also involves rotation of the vertebrae and changes in the shape of the rib cage.

Mild scoliosis usually does not significantly affect internal organ function. However, when thoracic scoliosis is more severe, the space available for movement of the rib cage may be restricted, lung capacity and breathing efficiency may decrease, and severe cases may place an additional burden on the heart and lungs. [2]

4. Good Posture Balances Stability and Mobility

All joints need both mobility and control. The balance depends on the task, the person and any injury or disease; knees and elbows are not simply “stability joints”, nor are ankles and wrists only “mobility joints”. Rehabilitation should be based on individual assessment.

General information only; not a substitute for medical assessment, diagnosis or treatment.

References

  1. Swain et al., 2020
  2. Scoliosis Research Society: Scoliosis