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Analysis of running stability during 5000 m running
Tim Hoenig1, Daniel Hamacher2, Klaus-Michael Braumann1
1a Department of Sports and Exercise Medicine, Institute of Human Movement Science , University of Hamburg , Hamburg , Germany.
European Journal of Sport Science
|September 27, 2018
Summary
Competitive runners exhibit enhanced local dynamic stability (LDS) during exhaustive running compared to recreational runners. LDS improves with fatigue in both groups, suggesting better running technique adaptation.
Area of Science:
- Biomechanics
- Human Movement Analysis
- Sports Science
Background:
- Local dynamic stability (LDS) is crucial for gait analysis.
- Extending LDS to running biomechanics requires further investigation.
- Understanding stability differences between runner types is important.
Purpose of the Study:
- Compare LDS during exhaustive running between competitive and recreational runners.
- Investigate changes in LDS throughout a 5000m run.
- Examine the relationship between LDS and other running performance metrics.
Main Methods:
- Recruited 15 competitive and 15 recreational runners for a 5000m exhaustive run.
- Utilized inertial measurement units (IMUs) on the foot, pelvis, and thorax to quantify LDS via the largest Lyapunov exponent.
- Measured running velocity, lactate levels, perceived exertion, and foot strike patterns.
Main Results:
- Local dynamic stability (LDS) increased in both groups at the thorax and pelvis during the run (P<0.01).
- Competitive runners demonstrated significantly higher foot LDS throughout the run compared to recreational runners (P=0.029).
- LDS at the foot differed significantly between groups across all measurement points.
Conclusions:
- Exhaustive running can improve local dynamic stability, indicating enhanced running technique with fatigue.
- Significant differences in foot LDS exist between competitive and recreational runners.
- Assessing LDS provides valuable insights into running biomechanics and athlete performance.
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