What is Core Stability?
By: Jennifer Cushing PT

Stability is the body’s ability to use muscles to control movement while preventing excessive stress on joint structures. Your core is comprised of muscles surrounding the abdomen and pelvis: 1) Transverse Abdominus (the deepest abdominal muscle), 2) Multifidus (found in the low back), 3) the pelvic floor muscles and 4) the diaphragm. These muscles as forming a cylinder that gives your trunk balance and stability.

Normally, the core muscles contract PRIOR to trunk or limb movement to stabilize the spinal column and pelvis. If you lack this ability to contract the postural muscles of the trunk, undue stress is placed on the vertebral column, pelvis and joints of the lower limb. Core stability is decreased if any of the core muscles become dysfunctional. These muscles do not spontaneously recover therefore retraining them plays a key role in decreasing or preventing Sacroiliac pain. Another muscle, gluteus medius, located in the buttock region also plays a key role in stabilizing the pelvis. Core retraining can be achieved with specific exercises from your physiotherapist.


Slumped posture causes unequal loading on the spine and an uneven distribution of force through the ligaments and muscles. Over time this can lead to cumulative injury and pain. Therefore, it is important to maintain good postural alignment with all activities, including sitting, standing, lifting, and when sleeping.

Positioning for pain relief:

Early on in an injury it can be difficult to find a comfortable position to rest or sleep. When you are experiencing a lot of pain you can use one of the positions below to help decrease your pain:


*These exercises are not appropriate for all patients. Check with our Sheddon Physiotherapists to see what is appropriate for you, call us at (905)-849-4576.

By Dana Clark