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Comparative Analysis of Lower Limb Kinematics between the Initial and Terminal Phase of 5km Treadmill Running
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Tibial acceleration and shock attenuation while running over different surfaces in a trail environment
Micah C Garcia1, Gianna Gust2, David M Bazett-Jones3
1College of Health and Human Services, University of Toledo, USA.
Journal of Science and Medicine in Sport
|March 26, 2021
Summary
Trail running surfaces like dirt and gravel do not significantly reduce tibial acceleration or improve shock attenuation compared to paved surfaces. Therefore, trail running may not offer mechanical loading benefits for preventing running injuries.
Area of Science:
- Biomechanics
- Sports Medicine
- Running Science
Background:
- Increased tibial acceleration and reduced shock attenuation are linked to running injuries.
- Trail running's popularity is rising, with assumptions of softer surfaces, but its effect on biomechanical loading is unclear.
Purpose of the Study:
- To investigate peak triaxial tibial acceleration and shock attenuation across dirt, gravel, and paved surfaces.
- To determine if trail surfaces offer reduced mechanical loading compared to paved surfaces.
Main Methods:
- Fifteen recreational runners were instrumented with triaxial tibial and head accelerometers.
- Runners traversed dirt, gravel, and paved surfaces within a trail environment.
- One-way ANOVAs with Bonferroni post-hoc tests analyzed differences in tibial accelerations and shock attenuations.
Main Results:
- No statistically significant differences were observed in peak triaxial tibial accelerations among the tested surfaces.
- Similarly, no significant differences were found in axial and resultant shock attenuations between dirt, gravel, and paved surfaces.
Conclusions:
- Dirt and gravel trail surfaces do not provide lower tibial accelerations or greater shock attenuation than paved surfaces.
- Trail running's psychological benefits are noted, but mechanical loading benefits for injury prevention are not supported by this study.
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