18/10/2026
BACK PAIN: WHY IT HURTS, WHAT HELPS
🔎 Abdominal separation: could it affect your back?
A client came to us with back pain and a diagnosed disc herniation. They love the gym, but their back pain has stopped them training.
During assessment, we also identified diastasis recti, sometimes called abdominal separation.
Diastasis recti is a widening and thinning of the linea alba which is a band of connective tissue, or fascia, between the two sides of your abdominal muscles.
During pregnancy, this connective tissue stretches to make space for a growing baby. It’s a normal adaptation, but the widening can persist for years postpartum. People who’ve never been pregnant can have it too.
So how does diastasis recti cause back pain?
Your abdominal muscles and connective tissues help transfer forces and support your trunk. Together with your diaphragm and pelvic floor, these structures help manage intra-abdominal pressure. This is the pressure inside your abdomen that changes when you breathe, cough or lift weights (or anything at all).
Changes in how the abdominal wall handles load may be relevant when someone is struggling with movement or exercise due to back pain.
Diastasis can exist with back pain, although the relationship isn’t straightforward. Diastasis doesn’t automatically cause pain, and finding it doesn’t entirely explain a disc herniation.
How do you know if you have a diastasis? You might notice a ridge or doming down the middle of your abdomen during abdominal exercises (chest lifts or leg lowers) or feel a gap around, above or below your navel. The gap alone doesn’t tell us how strong you are; assessing how your abdominal wall works during lifting gives us a fuller picture.
💪 For this client, we started with introductory mat based Pilates exercises: working on breathing, core coordination and abdominal pressure at a manageable level, with the aim of gradually increasing the challenge towards their gym goals.
If back pain has put your gym training on hold, get in touch:
📧 [email protected]
📖 This is the first in our “Back pain: why it hurts, what helps” series—looking at what might be contributing to your pain and what you can do about it.
Photo by Sasun Bughdaryan - Source Unsplash