Sole Science

Rebecca Rushton: Deconstructing Friction, Shear Dynamics and the Science of Blister Prevention

Sole Science

Show Notes

How does a practitioner transform a personal frustration with recurrent blisters into an internationally recognised hub for skin biomechanics and clinician education? For Rebecca Rushton, a podiatrist with over 30 years of clinical experience based in Esperance, Western Australia, the journey began after realising that standard university training and traditional taping methods were failing to keep athletes blister-free. In this episode of Sole Science, hosts Patrick Doan and John Charles sit down with Rebecca to dismantle the long-standing misconceptions surrounding blister causation, prevention and treatment. Together, they explore the critical distinction between rubbing and shear, the biomechanical drivers of skin distortion and why effective management must always be matched to specific anatomical locations rather than relying on a one-size-fits-all remedy. In this episode, we dive into: The Shear vs Rubbing Fallacy: Why confusing friction with rubbing has led the profession up the garden path and how reducing the coefficient of friction to allow targeted slip actually spares the stratum spinosum from destructive shear forces. Location-Specific Biomechanics: Unpacking the mechanical drivers behind different blister sites, from digital clawing in apical toe blisters to structural arch flattening and overstriding in posterior heel presentation. Targeted Interventions & Material Science: The clinical application of PTFE (Engo) patches, insoles and the underlying evidence behind sock thickness and material density. Refining Prescribing & Orthotic Design: How to troubleshoot orthotic-induced irritation, optimise rearfoot support and utilise footwear heel-to-toe differentials to manage forefoot load. Real-World Testing Grounds: Insights gained from working multi-day ultra-marathons, where rapid feedback loops reveal what truly works under extreme repetitions and high forces. Bridging the Educational Gap: The motivation behind creating Blister Prevention University and Blister Prevention Pro to equip podiatrists, pharmacists and the public with evidence-based management strategies. Whether you are a sports podiatrist looking to refine your biomechanical reasoning, a clinician treating endurance runners or a practitioner wanting to master skin fatigue management, this episode provides a masterclass in turning a neglected sub-niche into a clinical superpower.

Connect with our guest: Rebecca Rushton: Connect with Rebecca on Intagram via @blisterpod1. Explore articles, resources and educational content via Rebecca's website Blister Prevention. Join the SEPA Community Enjoyed this conversation and want to elevate your career in sports and exercise podiatry? Join SEPA and become a member today. Whether you're a student, a recent graduate or an established clinician, SEPA offers a world of opportunity—from exclusive access to the latest research and CPD to mentorship and networking with some of the most respected names in the field. www.sepa.org.au

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