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Comparative Analysis of Lower Limb Kinematics between the Initial and Terminal Phase of 5km Treadmill Running
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Published on: July 17, 2020

Peak impact accelerations during track and treadmill running.

Erin M R Bigelow1, Niell G Elvin, Alex A Elvin

  • 1Department of Orthopaedic Surgery, University of Michigan, Ann Arbor, MI.

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Running on a track produced higher horizontal impact accelerations compared to a treadmill. Vertical impact accelerations were similar between the two surfaces, suggesting different running biomechanics.

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Area of Science:

  • Biomechanics
  • Sports Science
  • Wearable Technology

Background:

  • Understanding running impact forces is crucial for injury prevention.
  • Previous research has compared track and treadmill running, but with varying methodologies.
  • Novel wireless accelerometers offer potential for long-term, real-world impact monitoring.

Purpose of the Study:

  • To compare peak vertical and horizontal impact accelerations between running on a synthetic track and a treadmill.
  • To assess the feasibility of using a novel wireless accelerometer for long-term impact monitoring during running.

Main Methods:

  • 12 healthy subjects ran 4 miles on a synthetic track and, one week later, 4 miles on a treadmill at a matched pace.
  • A novel wireless accelerometer, recording triaxial acceleration, was secured at the L5 vertebra.
  • Peak vertical and horizontal impact accelerations were compared between the two running conditions.

Main Results:

  • No significant difference was found in peak vertical impact accelerations between the track and treadmill (P = .52).
  • Peak horizontal impact accelerations were significantly greater on the track compared to the treadmill (P = .0012).
  • The study demonstrated the feasibility of long-term impact acceleration monitoring with the wireless device.

Conclusions:

  • Running on a track may impose greater horizontal impact forces than running on a treadmill.
  • Vertical impact forces are comparable between track and treadmill running.
  • Wireless accelerometer technology is a viable tool for monitoring running impact accelerations over extended periods.