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Evaluating Gait Abnormalities in Asian Elephants Using Inertial Measurement Unit-Based Vertical Movement Symmetry

Siripat Khammesri1, Kittichai Wantanajittikul2, Kittikul Namwongprom3

  • 1Department of Physical Therapy, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai 50200, Thailand.

Veterinary Sciences
|February 26, 2025
PubMed
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Early detection of elephant lameness is crucial for welfare. This study used inertial measurement units (IMUs) to objectively assess vertical movement symmetry, showing potential for identifying gait abnormalities in elephants.

Area of Science:

  • Veterinary Science
  • Animal Biomechanics
  • Wildlife Health

Background:

  • Early detection of lameness in elephants is vital for timely treatment and improved welfare.
  • Visual identification of subtle gait abnormalities in elephants can be challenging.

Purpose of the Study:

  • To evaluate vertical movement symmetry in Asian elephants using cross-correlation analysis.
  • To assess the potential of inertial measurement units (IMUs) for objective lameness detection in elephants.

Main Methods:

  • Six Asian elephants, including one with an abnormal gait, were fitted with IMU sensors on forelimbs and hindlimbs.
  • Vertical limb movements during straight-line walking were recorded.
  • Cross-correlation analysis quantified symmetry between left and right limbs.
Keywords:
elephantgait analysissignal processingvertical asymmetry

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Last Updated: May 25, 2025

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Main Results:

  • The cross-correlation analysis provided an objective measure of gait patterns.
  • The method demonstrated potential in detecting lameness by identifying asymmetries.

Conclusions:

  • Vertical movement symmetry analysis using IMUs offers a promising objective approach for early lameness detection in elephants.
  • This technique could lead to timely interventions, enhancing elephant welfare in captive populations.
  • Further validation with larger sample sizes and confirmed abnormalities is recommended.