The SHIFT Project 11 - It's Time to Reclassify Running Shoes
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This podcast proposes a fundamental paradigm shift in classifying running shoes, moving from the outdated kinematic view, which focused on controlling foot motion, to a modern kinetic perspective, which emphasizes the modulation of forces. Historically, shoes were categorized as neutral, stability, or motion control based on the now debunked assumption that motion, e.g., "excessive pronation" caused injury, but modern research shows that excessive tissue stress causes pathology. Podiatrist, Ray Anthony introduces a new scientifically grounded taxonomy— Isotropic, Anisotropic, and Adaptive— to categorize footwear based on how it redistributes GRFs and influences external joint moments through regional stiffness and geometry. This kinetic approach reframes the shoe as a force and moment control system that changes tissue stress, often without affecting the runner's preferred movement pathway, offering the corresponding consumer terms of Force Balanced, Force Guided, and Force Dynamic to bridge clinical and retail understanding.