The Surprising Role of Your Feet in Lower-Back Pain
When people think about lower-back pain, they usually blame the back itself: a “weak core,” a tight muscle, bad posture, or a problem seen on an MRI.
But sometimes the real issue starts much lower down.
Your feet are the foundation for everything above them. Every step you take sends force through the feet, ankles, knees, hips, and finally the lower back. If the foot is not moving or supporting well, the body often compensates further up the chain.
For example, if one foot collapses inward more than the other, the leg may rotate inward, the pelvis may tilt, and the lower back may twist or work harder than it should. Over thousands of steps a day, even small changes in foot mechanics can gradually contribute to irritation in the hips and lower back.
Common foot patterns that can contribute to back pain include:
A very flat or very stiff foot
Limited ankle mobility, especially ankle dorsiflexion
Walking more on one foot than the other
Poor balance or weakness in the small stabilizing muscles of the foot
Old ankle injuries that changed the way you walk
One of the most common problems is reduced ankle mobility. If the ankle does not bend forward well when walking, squatting, or climbing stairs, the body often compensates by twisting through the knee, dropping the arch, or extending through the lower back. Over time, this can overload the lumbar spine.
Interestingly, research shows that people with persistent low-back pain often have poorer balance and altered foot pressure patterns compared with people without back pain. Some studies also suggest that foot orthotics or targeted foot exercises may help certain people with back pain, especially when there is a clear foot or walking pattern contributing to symptoms.
That does not mean everyone with back pain needs orthotics. In fact, simply putting an insert in the shoe often misses the bigger picture.
The best approach is usually to ask:
How is the foot moving?
Is one side different?
Is the ankle stiff?
Are the hips and glutes compensating?
Has the way you walk changed since an injury?
Often, improving lower-back pain means treating the whole chain, not just the back.
A physiotherapist may look at:
Walking and balance
Foot posture and arch control
Ankle mobility
Hip strength and control
Single-leg stability
Simple exercises can make a surprising difference. For some people, strengthening the foot and ankle, improving calf flexibility, restoring balance, and retraining walking mechanics reduces stress on the lower back more effectively than stretching the back alone.
One useful exercise is the “short foot” exercise: gently lift and support the arch of the foot without curling the toes, while keeping the foot relaxed. Another is improving ankle mobility with calf stretching or knee-over-toe movements. These can help restore a stronger, more stable base for the body.
The next time your lower back feels stiff or sore, it may be worth looking down.
Sometimes the problem is not that your back is weak. Sometimes your foundation is asking for help.
References
Brantingham, J. W., Globe, G., Jensen, M., Cassa, T. K., Globe, D., Price, J., & Mayer, S. N. (2012). A feasibility study of biomechanical foot orthoses in the treatment of chronic low back pain. Journal of Chiropractic Medicine, 11(4), 206–216.
Menz, H. B., Dufour, A. B., Riskowski, J. L., Hillstrom, H. J., & Hannan, M. T. (2013). Foot posture, foot function and low back pain: The Framingham Foot Study. Rheumatology, 52(12), 2275–2282.
Sadler, S. G., Spink, M. J., Ho, A., De Jonge, X. J., & Chuter, V. H. (2017). Restriction in lateral bending range of motion, lumbar lordosis, and hamstring flexibility predicts the development of low back pain: A systematic review of prospective cohort studies. BMC Musculoskeletal Disorders, 18, 179.
Viggiani, D., Callaghan, M. J., & Selfe, J. (2020). Foot and ankle characteristics associated with low back pain: A systematic review and meta-analysis. Musculoskeletal Science and Practice, 48, 102159.
