Footwear and footstrike change loading patterns in running
Andrew D Nordin1, Janet S Dufek2
1J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida , Gainesville, FL, USA.
Journal of Sports Sciences
|May 8, 2020
Summary
Loading rates impact running injuries. Different footwear and footstrike patterns alter these loading patterns. Matching shoes to your footstrike can help reduce injury risk.
Area of Science:
- Biomechanics
- Sports Medicine
- Running Science
Background:
- Loading rates are associated with running-related injuries.
- Peak load extraction may miss crucial time-varying loading patterns.
- Understanding 3D loading dynamics is key to injury prevention.
Purpose of the Study:
- To analyze 3D loading rate-time features during running.
- To investigate the influence of footwear and footstrike on loading patterns.
- To identify how these factors interact to affect impact loads.
Main Methods:
- Principal Component Analysis (PCA) applied to 3D ground reaction forces.
- Twenty participants ran in cushioned and minimalist footwear.
- Three footstrike conditions (forefoot, midfoot, rearfoot) were tested.
Main Results:
- Two principal components (PCs) explained over 65% of loading rate variance.
- Significant interactions found between axes, footwear, and footstrike (PC1, PC2).
- Rearfoot strike in cushioned shoes reduced vertical impact; forefoot strike in minimalist shoes reduced A-P and M-L impact.
Conclusions:
- Running loading patterns are significantly influenced by footwear-footstrike interactions.
- Optimizing footwear choice based on individual footstrike patterns is recommended.
- This research provides insights into mitigating running injury risk through biomechanical adjustments.
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