The Problem I Have With the Word “Core”
“Core” has become one of the most overused—and misunderstood—terms in health and fitness.
For many people, the word immediately brings to mind:
Abdominal exercises
Planks
Crunches
Six-pack muscles
And somehow, these exercises are often marketed as the solution to back pain.
But the reality is much more complicated than that.
Your “Core” Is Not Just Your Abs
When I think about the core, I think about the entire system that supports and influences the spine.
Yes, the abdominal muscles matter.
But so do:
The muscles of the back
The diaphragm
The pelvic floor
The hips and gluteal muscles
The muscles around the shoulder girdle
Even the feet and lower extremities
And beyond the muscles themselves:
How mobile are your hips?
How mobile is your thoracic spine?
How do you move during daily life?
How do you sit, bend, lift, walk, and breathe?
Because if your hips or thoracic spine are stiff, your lumbar spine often pays the price.
The Olympic Rings Analogy
I think of spinal health like the overlapping Olympic rings.
Each ring represents a different system:
Strength
Mobility
Movement patterns
Recovery
Hydration
Sleep
Stress
Mental health
Nutrition
None of these systems exist independently.
They overlap and influence one another constantly.
For example:
A dehydrated disc may tolerate load less effectively
Chronic stress increases muscular tension and changes pain sensitivity
Poor sleep affects recovery and inflammation
Fear of movement changes the way people move and brace themselves
So when someone says they need “core strengthening,” my question is:
Which part of the system actually needs attention?
Because sometimes the issue is weakness.
But sometimes it’s:
Stiff hips
Poor breathing mechanics
Deconditioning
Persistent stress
Fear avoidance
Lack of movement variability
Or simply spending too much time sitting
Back Pain Is Rarely One-Dimensional
This is one reason why quick fixes often fail.
The body is not a collection of isolated parts.
It is an integrated system.
And improving spinal health often requires addressing multiple overlapping factors—not just doing more abdominal exercises.
My Takeaway
The word “core” is not wrong.
It’s just incomplete.
If we reduce spinal health to “tighten your abs,” we miss the bigger picture.
A healthier spine is usually the result of:
Better movement
Better mobility
Better strength
Better recovery
Better stress management
Better overall health habits
The spine does not function in isolation.
Neither should the way we treat it.
By Phil Rolfe DPT