Assessment of repeatability of a wireless, inertial sensor–based lameness evaluation system for horses

Keegan, Kevin G.; Kramer, Joanne; Yonezawa, Yoshiyuki; Maki, Hiromitchi; Pai, P. Frank; Dent, Eric V.; Kellerman, Thomas E.; Wilson, David A.; Reed, Shannon K.

doi:10.2460/ajvr.72.9.1156

Cited by 188 publications

(219 citation statements)

References 15 publications

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“…The inertial sensor system analysis method, which incorporates a frequency-based signal convolution and decomposition into harmonic components, is better for lameness analysis when data on larger numbers of contiguous strides are available. In another study, 23 test-retest repeatability of the inertial sensor system for detecting vertical HMA was higher (ICC range, 0.88 to 0.94) than that achieved for similar measurements in the present study (ICC range, 0.72 to 0.84). However, in the previous study, 23 data on trials with a mean of 48 contiguous strides were collected and the trials with the least number of contiguous strides involved a mean of 21.6 strides.…”

Section: Discussioncontrasting

confidence: 80%

“…Inertial sensors in microelectromechanical systems are miniaturized combinations of electrical and mechanical sensing components in 1 device. Several studies [17][18][19][20][21][22][23] have been reported in which systems that make use of inertial sensors were used as the basis for motion analysis to detect and evaluate lameness in horses. A basic premise is that vertical movement of the torso, which can be measured with body-mounted inertial sensors, will mirror vertical ground reaction forces and that asymmetry in vertical torso movement between right and left halves of the stride can be quantified and associated with severity of lameness.…”

mentioning

confidence: 99%

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Comparison of an inertial sensor system with a stationary force plate for evaluation of horses with bilateral forelimb lameness

Keegan¹,

MacAllister²,

Wilson³

et al. 2012

ajvr

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105

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Section: Discussioncontrasting

confidence: 80%

mentioning

confidence: 99%

Comparison of an inertial sensor system with a stationary force plate for evaluation of horses with bilateral forelimb lameness

Keegan¹,

MacAllister²,

Wilson³

et al. 2012

ajvr

Self Cite

105

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show abstract

“…Results of previous studies suggest that the inertial sensor system for lameness detection and evaluation of trotting horses, in a straight line, has enough repeatability to validate its routine clinical use [14] and is capable of identifying a more subtle lameness than any subjective evaluation performed by experienced veterinary practitioners [3].…”

Section: Discussionmentioning

confidence: 99%

The Use of Xylazine or Acepromazine Does Not Interfere in the Lameness Evaluation by Inertial Sensors

Azevedo

Côrte

Brass

et al. 2015

Journal of Equine Veterinary Science

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“…In humans, it has been well established that precise accelerometer-based descriptions of full-body movement require at least five acceleration sensors, one mounted on the trunk of the body and one on each extremity [26]. Studies of free-ranging wild animal are typically limited to one telemetry tag per individual; however, multiple accelerometer instruments have been used on domesticated animals [149][150][151][152] and in a handful of wild marine species [53,54,[153][154][155][156][157], improving the precision of behavior measurements.…”

Section: Potential Application Of Accelerometry: Position and Locationmentioning

confidence: 99%

Observing the unwatchable through acceleration logging of animal behavior

Brown

Kays

Wikelski

et al. 2013

Animal Biotelemetry

405

460

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Behavior is an important mechanism of evolution and it is paid for through energy expenditure. Nevertheless, field biologists can rarely observe animals for more than a fraction of their daily activities and attempts to quantify behavior for modeling ecological processes often exclude cryptic yet important behavioral events. Over the past few years, an explosion of research on remote monitoring of animal behavior using acceleration sensors has smashed the decades-old limits of observational studies. Animal-attached accelerometers measure the change in velocity of the body over time and can quantify fine-scale movements and body postures unlimited by visibility, observer bias, or the scale of space use. Pioneered more than a decade ago, application of accelerometers as a remote monitoring tool has recently surged thanks to the development of more accessible hardware and software. It has been applied to more than 120 species of animals to date. Accelerometer measurements are typically collected in three dimensions of movement at very high resolution (>10 Hz), and have so far been applied towards two main objectives. First, the patterns of accelerometer waveforms can be used to deduce specific behaviors through animal movement and body posture. Second, the variation in accelerometer waveform measurements has been shown to correlate with energy expenditure, opening up a suite of scientific questions in species notoriously difficult to observe in the wild. To date, studies of wild aquatic species outnumber wild terrestrial species and analyses of social behaviors are particularly few in number. Researchers of domestic and captive species also tend to report methodology more thoroughly than those studying species in the wild. There are substantial challenges to getting the most out of accelerometers, including validation, calibration, and the management and analysis of large quantities of data. In this review, we illustrate how accelerometers work, provide an overview of the ecological questions that have employed accelerometry, and highlight the emerging best practices for data acquisition and analysis. This tool offers a level of detail in behavioral studies of free-ranging wild animals that has previously been impossible to achieve and, across scientific disciplines, it improves understanding of the role of behavioral mechanisms in ecological and evolutionary processes. AbstractResumen: El comportamiento es un mecanismo importante de la evolución y que se paga a través del gasto de energía. Sin embargo, los biólogos de campo raramente observan los animales durante más de una fracción de sus actividades y los intentos de cuantificar el comportamiento para el modelado de los procesos ecológicos a menudo excluyen eventos crípticos pero importantes. En los últimos años se produjeron avances importantes en el monitoreo remoto del comportamiento de los animales, utilizando sensores de telemétro de aceleración (acelerómetros) que empujan los límites tradicionales de los estudios observacionales. Acelerómetros uni...

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Assessment of repeatability of a wireless, inertial sensor–based lameness evaluation system for horses

Abstract: The inertial sensor system used to measure asymmetry of head and pelvic movement as an aid in the detection and evaluation of lameness in horses trotting in a straight line was sufficiently repeatable to investigate for clinical use.

Cited by 188 publications

References 15 publications

Comparison of an inertial sensor system with a stationary force plate for evaluation of horses with bilateral forelimb lameness

Comparison of an inertial sensor system with a stationary force plate for evaluation of horses with bilateral forelimb lameness

The Use of Xylazine or Acepromazine Does Not Interfere in the Lameness Evaluation by Inertial Sensors

Observing the unwatchable through acceleration logging of animal behavior

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