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Differences in plantar loading between training shoes and racing flats at a self-selected running speed
Johannes I Wiegerinck1, Jennifer Boyd, Jordan C Yoder
1Michael W. Krzyzewski Human Performance Lab, Durham, NC, USA.
Gait & Posture
|January 17, 2009
Summary
Running in racing flats, compared to training shoes, results in higher peak pressure, maximum force, and contact area on the foot. These differences in plantar loading may influence stress fracture risk in runners.
Area of Science:
- Biomechanics
- Sports Medicine
- Running Science
Background:
- Plantar loading characteristics vary between different running shoe types.
- Understanding these differences is crucial for injury prevention, particularly stress fractures.
Purpose of the Study:
- To compare plantar loading parameters between a racing flat and a training shoe.
- To investigate differences in peak pressure, maximum force, and contact area during running.
Main Methods:
- 37 healthy, active runners (17 male, 20 female) participated.
- Plantar pressure data were collected using a Pedar-X in-shoe system.
- Subjects ran in two shoe types: Nike Air Pegasus (training) and Nike Air Zoom Katana IV (racing flat).
Main Results:
- Significant differences in peak pressure, maximum force, and contact area were observed between the two shoe types.
- Racing flats exhibited higher values for these parameters compared to training shoes.
- Differences were analyzed across eight anatomical regions and the total foot.
Conclusions:
- Running shoe type significantly impacts plantar loading metrics.
- The distinct loading patterns associated with racing flats may be relevant to the incidence of running-related stress fractures.
