Use of a protective cover affects ground reaction force measurements obtained from dogs walking on a validated pressure-sensitive walkway

Abstract

OBJECTIVE To determine whether use of a protective cover would affect temporospatial gait or ground reaction force (GRF) measurements obtained from dogs walking on a validated pressure-sensitive walkway (PSW). ANIMALS 5 healthy dogs. PROCEDURES In a crossover study design, all dogs were walked across a calibrated PSW with and without a protective cover in place in random order. Temporospatial gait data and GRFs obtained with and without the cover in place were compared. RESULTS No significant differences were identified in temporospatial gait measurements obtained with versus without the cover in place. The bias was low for all variables, and the 95% limits of agreement included 0. In contrast, significant differences were found between measurements obtained with versus without the cover in place for most GRFs, with measurements obtained with the cover in place significantly lower than those obtained without a cover. CLINICAL RELEVANCE Results suggested that for dogs walking over a PSW, GRFs, but not temporospatial gait variables, would be significantly lower if a protective cover was placed over the walkway, compared with values obtained without a cover in place.

Postural stability measures in healthy miniature Dachshunds obtained using a pressure mat and a force platform: a validity and reliability study

“…Firstly, the CoP measures reported here are based on standing on the pressure mat directly with no cover. Previous canine studies have demonstrated that ground reaction force data is affected by the surface [ 22 , 23 ] and human studies have also suggested that a different balancing mechanism is employed on different surfaces [ 24 ]. Therefore, this should be taken into account when using the normative data from this study.…”