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Updated: May 14, 2026

A Simple and Low-cost Assay for Measuring Ambulation in Mouse Models of Muscular Dystrophy
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Measuring Chuckwagon Racehorse Movement Asymmetry Before and After Racing Using Wearable GNSS-IMUs: A Preliminary

Camille M Eamon1, Matthijs van den Broek1,2, Karelhia Garcia-Alamo3

  • 1Faculty of Kinesiology, University of Calgary, 2500 University Drive NW, Calgary, AB T2N 1N4, Canada.

Animals : an Open Access Journal From MDPI
|May 13, 2026
PubMed
Summary

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Differences in Stride Characteristics Between Lead and Wheel Horses in Competitive Chuckwagon Racing.

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Association Between Stride Parameters and Racetrack Curvature for Thoroughbred Chuckwagon Horses.

Sensors (Basel, Switzerland)·2025

Chuckwagon racing horses showed increased push-off asymmetry after races. While one injured horse had high asymmetry, further research is needed to define normal ranges and identify injury predictors.

Area of Science:

  • Equine locomotion analysis
  • Biomechanical assessment in racing animals

Background:

  • Movement symmetry is crucial for performance and soundness in Chuckwagon racing horses.
  • Assessing locomotion symmetry can help identify potential lameness and injury risks.

Purpose of the Study:

  • To evaluate changes in weight-bearing and push-off asymmetry in Thoroughbred racehorses during warmups and cooldowns.
  • To investigate the relationship between asymmetry and musculoskeletal injuries in Chuckwagon racing.

Main Methods:

  • Sixty horses were fitted with Global Navigation Satellite System combined with Inertial Measurement Unit (GNSS-IMU) sensors over 10 days.
  • Weight-bearing asymmetry (MnD) and push-off asymmetry (UpD) were quantified in millimeters and as a percentage of range of motion.
  • Linear mixed models were used to compare asymmetry metrics between warmups and cooldowns.
Keywords:
IMUsMSK injurychuckwagon racinglocomotionmovement symmetrypre- and post-racingracehorsewearable sensors

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Main Results:

  • Mean weight-bearing asymmetry (MnD) remained similar between warmups and cooldowns.
  • Mean push-off asymmetry (UpD) significantly increased from warmup to cooldown (p=0.046).
  • One horse with a catastrophic musculoskeletal injury exhibited high push-off asymmetry values.

Conclusions:

  • Push-off asymmetry may increase following Chuckwagon racing.
  • High asymmetry values were observed in both injured and uninjured horses.
  • Further research is required to establish normative asymmetry ranges and identify injury-predictive patterns in this equine sport.