orthogonal acceleration
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2018 ◽  
Vol 38 (3) ◽  
pp. 536-543 ◽  
Author(s):  
Lázaro Morales-Acosta ◽  
Armando Ortiz-Prado ◽  
Víctor H. Jacobo-Armendáriz ◽  
Raide A. González-Carbonell

ABSTRACT: Horses with lameness modify gait behavior, but when it is subtle, it may not be possible to identify it clinically. The objective of this research is to characterize the normal gait phases of walking Warmblood horses by combining photogrammetry and accelerometry to monitor lameness to indicate a structural or functional disorder in the extremities. The study was conducted in 23 adult male Warmblood horses. Photogrammetry was used to identify the kinematic variables of the limbs and the markers path over time; triaxial accelerometers were used to capture the orthogonal acceleration components. It was determined that only 10 horses showed a normal gait pattern, there was a 43% correspondence between the expert´s judgment and the diagnostic techniques. According to the Stashak classification of the gait phases, cycle phases to forelimb were 34/4/8/13/41, while for hind limb were 54/11/8/8/19 (% of the stride). The range of motion (ROM) of the neck, knee and fetlock joints was 45.52±5.63°, 196.04±19.7° and 209±11.52° respectively. A combination of experimental methods was used to identify the phases of gait cycle of healthy horses. There was a correspondence in the location of the points of maximum displacement of the limbs with both techniques. More detailed information on the limbs movement was obtained using the accelerometer technology. These methods are applicable to other conditions either outdoors or in the lab.


2016 ◽  
Vol 88 (24) ◽  
pp. 12427-12436 ◽  
Author(s):  
Iain D. G. Campuzano ◽  
Huilin Li ◽  
Dhanashri Bagal ◽  
Jennifer L. Lippens ◽  
Juraj Svitel ◽  
...  

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