In:
PLOS ONE, Public Library of Science (PLoS), Vol. 17, No. 7 ( 2022-7-8), p. e0268390-
Abstract:
Aging is associated with impairment in postural control in humans. While dogs are a powerful model for the study of aging, the associations between age and postural control in this species have not yet been elucidated. The aims of this work were to establish a reliable protocol to measure center of pressure excursions in standing dogs and to determine age-related changes in postural sway. Data were obtained from 40 healthy adult dogs (Group A) and 28 senior dogs (Group B) during seven trials (within one session of data collection) of quiet standing on a pressure sensitive walkway system. Velocity, acceleration, root mean square, 95% ellipse area, range and frequency revolve were recorded as measures of postural sway. In Group A, reliability was assessed with intraclass correlation, and the effect of morphometric variables was evaluated using linear regression. By means of stepwise linear regression we determined that root mean square overall and acceleration in the craniocaudal direction were the best variables able to discriminate between Group A and Group B. The relationship between these two center-of-pressure (COP) measures and the dogs’ fractional lifespan was examined in both groups and the role of pain and proprioceptive deficits was evaluated in Group B. All measures except for frequency revolve showed good to excellent reliability. Weight, height and length were correlated with most of the measures. Fractional lifespan impacted postural control in Group B but not Group A. Joint pain and its interaction with proprioceptive deficits influence postural sway especially in the acceleration in the craniocaudal direction, while fractional lifespan was most important in the overall COP displacement. In conclusion, our study found that pressure sensitive walkway systems are a reliable tool to evaluate postural sway in dogs; and that postural sway is affected by morphometric parameters and increases with age and joint pain.
Type of Medium:
Online Resource
ISSN:
1932-6203
DOI:
10.1371/journal.pone.0268390
DOI:
10.1371/journal.pone.0268390.g001
DOI:
10.1371/journal.pone.0268390.g002
DOI:
10.1371/journal.pone.0268390.g003
DOI:
10.1371/journal.pone.0268390.g004
DOI:
10.1371/journal.pone.0268390.t001
DOI:
10.1371/journal.pone.0268390.t002
DOI:
10.1371/journal.pone.0268390.t003
DOI:
10.1371/journal.pone.0268390.t004
DOI:
10.1371/journal.pone.0268390.t005
DOI:
10.1371/journal.pone.0268390.t006
DOI:
10.1371/journal.pone.0268390.s001
DOI:
10.1371/journal.pone.0268390.s002
DOI:
10.1371/journal.pone.0268390.s003
DOI:
10.1371/journal.pone.0268390.r001
DOI:
10.1371/journal.pone.0268390.r002
DOI:
10.1371/journal.pone.0268390.r003
DOI:
10.1371/journal.pone.0268390.r004
Language:
English
Publisher:
Public Library of Science (PLoS)
Publication Date:
2022
detail.hit.zdb_id:
2267670-3
Bookmarklink