Technical note: Validation of a semi-automated software tool to determine gait-cycle variables in dairy cows

Alsaaod, Maher; Kredel, Ralf; Hofer, Balthasar; Steiner, Adrian (2017). Technical note: Validation of a semi-automated software tool to determine gait-cycle variables in dairy cows. Journal of dairy science, 100(6), pp. 4897-4902. American Dairy Science Association 10.3168/jds.2016-12235

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This paper presents the validation of a software tool called Cow-Gait-Analyzer (University of Bern, Switzerland) to determine gait-cycle variables in lame and non-lame dairy cows using features derived from low-cost, stand-alone 3-dimensional accelerometers (400 Hz). The Cow-Gait-Analyzer automatically extracts the relevant gait events of foot load and toe off, which characterize gait-cycle duration, stance phase, and swing phase during walking. A nonautomatic step is visual inspection of the pedograms. If the software does not automatically choose the right peaks according to pedogram definitions, peaks can be manually chosen. We validated the algorithms by comparing the accelerometer data (pedogram) with the synchronized video data, which we used as a gold standard. We carried out the measurements at the metatarsal level of paired hind limbs during walking. We included 12 non-lame cows and 5 lame cows and expressed overall differences between the Cow-Gait-Analyzer and the gold standard as relative measurement error (RME). We analyzed 34 hind limbs with a mean of 9 gait cycles. The median RME for gait-cycle duration and stance phases were 0 and 1.69%, respectively. The peaks of gait-cycle variables showed RME of 0.67 and 0.24% for foot load and toe off, respectively. The semi-automated Cow-Gait-Analyzer can accurately determine gait-cycle variables in both lame and non-lame cows, and could be used to assess gait patterns in routine clinical and research practice focusing on individual cows.

Item Type:

Journal Article (Original Article)

Division/Institute:

05 Veterinary Medicine > Research Foci > Veterinary Public Health / Herd Health Management
07 Faculty of Human Sciences > Institute of Sport Science (ISPW)
05 Veterinary Medicine > Department of Clinical Veterinary Medicine (DKV)
05 Veterinary Medicine > Department of Clinical Veterinary Medicine (DKV) > Clinic for Ruminants

Graduate School:

Graduate School for Cellular and Biomedical Sciences (GCB)

UniBE Contributor:

Alsaaod, Maher; Kredel, Ralf; Hofer, Balthasar and Steiner, Adrian

Subjects:

600 Technology > 630 Agriculture
700 Arts > 790 Sports, games & entertainment
500 Science > 590 Animals (Zoology)
600 Technology > 610 Medicine & health

ISSN:

0022-0302

Publisher:

American Dairy Science Association

Language:

English

Submitter:

Maher Alsaaod

Date Deposited:

05 Apr 2017 10:59

Last Modified:

09 Nov 2018 08:36

Publisher DOI:

10.3168/jds.2016-12235

PubMed ID:

28365123

BORIS DOI:

10.7892/boris.99020

URI:

https://boris.unibe.ch/id/eprint/99020

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