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In Vivo Canine Muscle Function Assay
09:34

In Vivo Canine Muscle Function Assay

Published on: April 5, 2011

In vivo canine muscle function assay.

Martin K Childers1, Robert W Grange, Joe N Kornegay

  • 1Department of Neurology and Wake Forest Institute for Regenerative Medicine, Wake Forest University, NC, USA. mchilder@wfubmc.edu

Journal of Visualized Experiments : Jove
|April 16, 2011
PubMed
Summary

This study presents a novel, minimally-invasive method for measuring canine pelvic limb muscle strength and response to eccentric contractions. The technique utilizes stereotactic immobilization and nerve stimulation for reproducible torque measurements in dogs.

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Area of Science:

  • Veterinary Medicine
  • Biomechanics
  • Neurophysiology

Background:

  • Assessing canine limb muscle function is crucial for diagnosing and treating neuromuscular disorders.
  • Existing methods for measuring muscle strength and response to contractions in dogs can be invasive or lack reproducibility.
  • Understanding muscle mechanics during eccentric contractions is vital for rehabilitation and performance analysis.

Purpose of the Study:

  • To develop and validate a minimally-invasive, reproducible method for measuring isometric and eccentric muscle contractions in the canine pelvic limb.
  • To assess the response of canine pelvic limb muscles to repeated eccentric contractions using a novel protocol.

Main Methods:

  • A stereotactic frame immobilized the anesthetized dog's pelvic limb with the tibia at a right angle to the femur.

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Last Updated: Jun 2, 2026

In Vivo Canine Muscle Function Assay
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Published on: April 5, 2011

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  • Adhesive wrap secured the paw to a servomotor-mounted pedal for isometric torque measurement.
  • Percutaneous nerve stimulation (tibial and peroneal) activated specific muscle groups (extensors and flexors).
  • An eccentric contraction protocol involved an initial isometric contraction followed by a servomotor-imposed stretch, repeated every 5 seconds.

    • Main Results:

    • The described method allows for precise measurement of isometric and eccentric torque generated by canine pelvic limb muscles.
    • The protocol demonstrated reproducibility in measuring muscle response to repeated eccentric contractions.
    • The system successfully induced and measured eccentric contractions in tibiotarsal flexor muscles via peroneal nerve stimulation.

    Conclusions:

    • This minimally-invasive technique provides a reproducible and accurate means to evaluate canine pelvic limb muscle strength and contractile properties.
    • The method is suitable for studying muscle fatigue and response to eccentric exercise in research and clinical settings.
    • This approach can advance the understanding of canine neuromuscular function and inform treatment strategies.