5 Common Custom Orthotics Misconceptions: Why Thicker Isn't Better
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What Is the Real Purpose of Orthotic Insoles?
Many people assume that the sole purpose of an insole is simply to "lift" or "support" the arch of the foot. However, this only scratches the surface.
A truly effective orthotic insole has three core objectives:
Improve pressure distribution ── Distributing the weight and pressure of every step more evenly across the foot, rather than letting it concentrate on a single spot.
Optimise lower limb alignment ── Helping the entire leg work at a more natural and correct angle, all the way from the ankle and knee to the hip joint.
Assist with movement control ── Supporting the foot to achieve a more efficient motion pattern during dynamic activities like walking and running.
In other words, whether an insole is "effective" has nothing to do with how high or how rigid it is. It depends entirely on whether it is tailored to your unique foot structure and addresses your specific issues.
Why "the Higher the Arch, the Better" Is a Myth
For many people, an arch support that is too high can actually cause discomfort.
Everyone has a different foot shape, joint mobility, and muscle strength. If the contour or height of the insole does not match your foot, it will not only feel uncomfortable but can also alter your gait over time, leading to new compensatory pain.
In clinical practice, we often see patients who buy "high arch" insoles off the shelf, only to develop plantar fasciitis or calf tightness. This happens because the design of the insole does not match their feet's natural biomechanics and movement needs.
Does "Rigid" Equal "Stable"?
While highly rigid insoles do offer strong structural support, they are not suitable for everyone.
For runners who require high-level motion control, a certain degree of stiffness is necessary. However, for everyday walking or individuals with sensitive foot tissues, an overly rigid insole can cause painful pressure points and worsen existing discomfort.
The right level of stiffness depends on your daily activities, body weight, the condition of your soft tissues, and your treatment goals. There is no single standard that works for everyone.
Insoles Are Just One Part of the Equation
This is a crucial point that many people overlook.
Whether you have flat feet or high arches, orthotic insoles are designed to help manage and correct biomechanical issues—but they cannot solve everything on their own.
To comprehensively address pain and dysfunction caused by foot issues, a holistic approach is usually required:
Pain Management -
If you are currently experiencing active inflammation or acute pain, it is important to address this first with appropriate therapies (such as shockwave therapy or radiofrequency IASTM). Relief from acute pain allows the body to better adapt to subsequent rehabilitation.
Functional Training -
Targeted training to build strength and coordination in the muscles of the feet, calves, and hips. When your muscles have adequate control, your joints become naturally stable, rather than relying solely on an insole to "passively" hold them up.
Posture and Gait Correction -
Many foot problems are closely linked to overall posture and movement patterns. Through a professional gait analysis, bad movement habits can be identified and corrected, addressing the root cause to prevent the issue from recurring.
How Should I Choose the Right Insoles?
If you are considering getting orthotic insoles, keep these key points in mind:
✅ Get a foot and gait assessment first ── Understand your unique foot shape, pressure distribution, and movement needs.
✅ Opt for a targeted design ── Custom-made orthotics are far more effective at addressing individual issues than generic, over-the-counter insoles.
✅ Combine them with a holistic treatment plan ── Remember that insoles are a supportive tool, not a cure-all.
❌ Do not just choose the thickest cushion ── While comfort is important, functional support and biomechanical improvement are what matter most.
❌ Do not neglect muscle strengthening ── Insoles can never replace the active control and support provided by your own muscles.
Finding the Right Solution for Your Feet
No two feet are the same, and everyone has different lifestyle demands and exercise habits.
The height and stiffness of an insole should never be the sole measure of its quality. The true measure of a good orthotic is whether it helps you walk more comfortably, move more efficiently, and keeps you free from recurring pain.
If you have concerns about your foot health, or if you have tried various off-the-shelf insoles without relief, feel free to book a professional foot and gait assessment. Let us help you find a solution that truly works for you.

