Precision in Every Step, Excellence in Every Partnership.

At Aybroad, precision is more than a technical metric—it is our solemn commitment to our global partners. From initial consultations and precision mold development to scientific material selection and digitized production monitoring, we meticulously refine every stage of our collaborative process. We believe that only through absolute rigor in our operations can we deliver the exceptional product quality that earns the long-term trust of our clients.

Aybroad Precision Process and Partnership

Process

Demands Evaluation

Project Development

Order Confirmation

Production Quality

Global Delivery

After-Sales Service

Pronation & Supination

Pronation vs. Supination: Is Your Gait Secretly Damaging Your Joints?

Walking is a fundamental human movement, but how your feet strike the ground makes all the difference. Have you noticed uneven wear on your shoe soles? This is often a sign of Overpronation or Supination. If left uncorrected, this mechanical misalignment can lead to a chain reaction of pain in the knees, hips, and spine.

 

I. Side-by-Side Comparison: Understanding the Mechanics

Feature Overpronation Supination (Underpronation)
Visual Sign Arch collapses; ankles roll inward. High arch; ankles tilt outward.
Outsole Wear Excessive wear on the inner edge. Excessive wear on the outer edge.
Associated Foot Type Flat Feet (Pes Planus). High Arches (Pes Cavus).
Bodily Impact Knock-knees (Valgus), Plantar Fasciitis. Chronic Ankle Sprains, Shin Splints.

 

II. Overpronation: The Inward Collapse

  • What Happens: The foot rolls too far inward, causing the arch to flatten excessively. This creates a "spiral" torsion that pulls on the lower leg and knee.

  • The Risks: Chronic overstretching of the plantar fascia and excessive pressure on the medial (inner) knee, often leading to IT Band Syndrome.

  • Engineering Solution: Control & Support.

    • Medial Reinforcement: High-density EVA or TPU shells provide a physical barrier to prevent arch collapse.

    • Deep Heel Cup: Stabilizes the calcaneus (heel bone) to stop the inward ankle tilt at the moment of impact.

 

III. Supination: The Rigid Strike

  • What Happens: Weight is concentrated on the outer edge of the foot. These feet are typically "rigid," lacking the natural ability to shock-absorb.

  • The Risks: High vulnerability to ankle sprains and stress fractures due to the lack of impact filtration.

  • Engineering Solution: Cushioning & Redistribution.

    • Full-Length Shock Absorption: Utilizing PORON® or GEL to compensate for the foot's lack of natural flexibility.

    • Lateral Pressure Offloading: Guiding the foot’s force back toward the center to reduce edge pressure.

 

IV. Aybroad’s Philosophy: Precision Alignment

As a specialized manufacturer, we don't just make "pads"—we engineer Gait Correctors:

  • Multi-Density Composites: We strategically place firm materials for support and soft materials for cushioning within the same insole.

  • Biomechanical Realignment: We help your ankles, knees, and hips return to their original vertical axis, eliminating compensatory pain.