BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Compensatory lameness in dogs: kinematic description and inertial 
 sensors detection - Dr Constanza B. Gómez Álvarez\, Lecturer in Musculos
 keletal Biomechhanics\, Head of Veterinary Biomechanics Laboratory\, Schoo
 l of Veterinary Medicine\, University of Surrey
DTSTART:20170531T150000Z
DTEND:20170531T160000Z
UID:TALK71014@talks.cam.ac.uk
CONTACT:Fiona Roby
DESCRIPTION:Lameness can be defined as an alteration in the normal gait of
  an animal. Houlton (2006)\, classified lameness as supporting or swinging
  limb lameness in dogs and defined them as: “reluctance or inability to 
 place full weight on the limb” and “lameness seen when the affected li
 mb is in flight”\, respectively. During lameness\, the full body attempt
 s to adapt to it by applying diverse compensatory mechanisms depending on 
 the location of the disturbance. Compensatory changes in the limb loadings
  have been studied\, however how these compensations relate to the movemen
 t of the upper body in the dog\, particularly head and pelvis\, have not b
 een quantified. Understanding the amount of movement to be expected would 
 allow for wearable devices to detect these lameness and thus objectively q
 uantify lameness. In a recent study of the author (Gómez Álvarez et al 2
 017)\, ten sound dogs of varied breeds were trotted on a treadmill before 
 and after induced transient lameness with the aim of describing the vertic
 al movement of the head and pelvis. Lameness was achieved by securing a co
 tton wad under the paw to produce a supporting limb lameness and by placin
 g a weight around the elbow/tarsus to produce a swinging limb lameness\, b
 oth in the fore- or hind limb. 3D data from reflective markers was obtaine
 d from a motion capture system while an inertial sensor system capture the
  acceleration of the head and pelvis in order to investigate if the system
  could detect lameness. The authors concluded that dropping the head or pe
 lvis is an excellent indicator of distal limb lameness\; lifting head or p
 elvis is an excellent indicator of lameness originated higher up in the li
 mbs during induced lameness in the dog\; smaller head/pelvic motion change
 s also occur in both fore and hind limb lameness. Both types of lameness w
 ere readily detected by the inertial sensor system and identified as diffe
 rent\, showing that a wireless and light device can quantify lameness in e
 xperimentally lame dogs in a parallel study of the author (Rhodin et al 20
 17). Further studies are needed to evaluate the method for clinically lame
  dogs trotting over ground.\n\nReferences\nGómez Álvarez C.B\, Gustås P
 .\, Bergh. A and Rhodin M. Head and pelvic movement symmetry in trotting d
 ogs with induced supporting lameness. The Veterinary Journal\, 2017. IN PR
 ESS\nHoulton\, J. An approach to the lame dog or cat. In: Houlton J.E.F.\,
  Cook J.L.\, Innes J.F.\, Langley-Hobbs S.J. (Eds) BSAVA Manual of Canine 
 and Feline Musculoskeletal Disorders. British Small Animal Veterinary Asso
 ciation\, Gloucester\, p. 6\, 2006.\nRhodin M.\, Bergh. A.\, Gustås P. an
 d Gómez Álvarez C.B. Inertial sensors based system for lameness detectio
 n in trotting dogs with induced lameness. The Veterinary Journal\, 2017. A
 pr\; 222:54-59.\n
LOCATION:Lecture Theatre 2\, Department of Veterinary Medicine
END:VEVENT
END:VCALENDAR