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Translational animal science2019; 3(4); 1389-1398; doi: 10.1093/tas/txz089

Sensor analysis and initial assessment of detectable first hoof contacts and last break-overs as unique signal fluctuations for equine gait analysis.

Abstract: The objective of the control study was to assess 2 prominent fluctuations in a single optical signal as being either a true first hoof contact or a last break-over based on descriptive measures. The study builds on initial findings from a preliminary investigation of the embedded-optical-base system's (EOBS) capabilities in signal capturing and feasibility as potential alternative to existing gait technologies, such as piezoelectric (e.g., load cell) systems. Hoof contacts and break-overs were measured (0 to 1 au; arbitrary units) using a 2.4-m (length) × 0.9-m (width) platform containing 1 EOBS. Three mixed-breed horses ( = 3) were injected with saline or either 100 IU or 200 IU Botox (i.e., onabotulinumtoxinA) with a 2.5-mL final volume. Injections were made into the deep digital flexor muscle at the motor end plates, with electromyography and ultrasound guidance. Horses were observed for 3 time points (pre-, post-, and recovery test days) over the span of a 4-mo period. Signal fluctuations [i.e., amplitude of hoof impacts based on true first hoof contacts (Δ ) and true last break-overs (Δ )] and kinematics [i.e., complete gait pass (CGP) time duration ()] were recorded from each horse. Visual observations and video analysis were used for determining gait pattern categories. Individual horse measurements were analyzed for each trial, compared with video data and classified. Comparison of primary signal fluctuations (i.e., Δ vs. Δ ; forelimb vs. hindlimb) exhibited significant differences between hoof contacts and break-overs ( < 0.05). Right and left forelimb hoof contacts and hindlimb break-overs were not significantly different ( = 0.966; 0.063 ± 0.135; Estimate ± SE; = 0.606; 0.176 ± 0.142; Estimate ± SE, respectively). Additionally, treatment vs. saline forelimbs did not exhibit significant difference ( = 0.7407; -0.098 ± 0.279; Estimate ± SE). Overall, data showed that the EOBS can collect repeatable and unique primary signal fluctuations as prominent and different gait measurements providing evidence to further development and research of the sensing system.
Publication Date: 2019-06-04 PubMed ID: 32704902PubMed Central: PMC7200566DOI: 10.1093/tas/txz089Google Scholar: Lookup
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  • Journal Article

Summary

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This research article focuses on investigating two unique signal fluctuations for equine gait analysis by using sensor-based technologies. The aim was to differentiate between the horse’s first hoof contact and the last break-over using an embedded optical-based system (EOBS). The underlying idea was to find better and repeatable alternative methods for equine gait analysis and measurement.

Research Methodology and Execution

  • The study involved three mixed breed horses which were subjected to two variations of the condition: a saline injection or Botox injection at varying concentrations (100 IU or 200 IU) into the deep digital flexor muscle.
  • The injections were guided by electromyography and ultrasound for efficiency.
  • The horses were observed over three different time points: pre-injection, post-injection, and during recovery, all spread over a four-month period.
  • A specially-crafted platform equipped with an EOBS was used to capture the first hoof contacts and the last break-overs of the horses. The signals were measured using arbitrary units (au).

Data Collection and Analysis

  • The data collected included the amplitude of hoof impacts based on first hoof contacts (Δ) and last break-overs (Δ) along with the complete gait pass (CGP) time duration from every horse.
  • Visual observations and video analysis were simultaneously employed for categorizing the gait patterns in each instance.
  • The data gathered from the EOBS was then compared against the video data to assess the accuracy and reliability of the system.

Research Findings

  • The study revealed significant differences between the first hoof contacts and last break-overs when comparing the primary signal fluctuations (forelimb vs. hindlimb). However, the results between right and left forelimb hoof contacts and hindlimb break-overs did not vary significantly.
  • No significant difference was found between the saline injections and treatment forelimbs.
  • The optical signal fluctuations captured by the EOBS were unique and repeatable, suggesting the system could serve as a new method for gait measurement and analysis.

Conclusion and Further Research

  • The study concluded that the EOBS can consistently capture unique signal fluctuations as different and prominent gait measurements, hence, providing substantial evidence to justify further research and development of the sensing system.

Cite This Article

APA
Atkins CA, Pond KR, Madsen CK, Moorman VJ, Roman-Muniz IN, Archibeque SL, Grandin T. (2019). Sensor analysis and initial assessment of detectable first hoof contacts and last break-overs as unique signal fluctuations for equine gait analysis. Transl Anim Sci, 3(4), 1389-1398. https://doi.org/10.1093/tas/txz089

Publication

ISSN: 2573-2102
NlmUniqueID: 101738705
Country: England
Language: English
Volume: 3
Issue: 4
Pages: 1389-1398

Researcher Affiliations

Atkins, Colton A
  • Department of Animal Sciences, College of Agriculture Sciences, Colorado State University, Fort Collins, CO.
Pond, Kevin R
  • Paul Engler College of Agriculture and Natural Sciences, West Texas A&M, Canyon, TX.
Madsen, Christi K
  • Department of Electrical and Computer Engineering, College of Engineering, Texas A&M University, College Station, TX.
Moorman, Valerie J
  • Equine Orthopaedic Research Center, Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Fort Collins, CO.
Roman-Muniz, Ivette N
  • Department of Animal Sciences, College of Agriculture Sciences, Colorado State University, Fort Collins, CO.
Archibeque, Shawn L
  • Department of Animal Sciences, College of Agriculture Sciences, Colorado State University, Fort Collins, CO.
Grandin, Temple
  • Department of Animal Sciences, College of Agriculture Sciences, Colorado State University, Fort Collins, CO.

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Citations

This article has been cited 1 times.
  1. Crecan CM, Morar IA, Lupsan AF, Repciuc CC, Rus MA, Pestean CP. Development of a Novel Approach for Detection of Equine Lameness Based on Inertial Sensors: A Preliminary Study.. Sensors (Basel) 2022 Sep 19;22(18).
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