Variações de parâmetros cinéticos e têmporo-espaciais em grupos heterogêneos de cães

• Autor(a) principal: Kano, Washington Takashi [UNESP]
• Data de Publicação: 2014
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://hdl.handle.net/11449/110626
• topic: Cão; Distúrbios da locomoção; Locomoção animal; Cinética; Mecanica animal; Espaço e tempo - Pesquisa; Gait disorders

The aim of this study was to identify kinetic and temporospatial parameters of low variability in a heterogeneous group of dogs, and to evaluate a linear correlation between stride frequency and the variables. Twenty-nine clinically healthy dogs organized into two groups were used. Group 1 had 15 dogs walking, 8 males and 7 females, weighing from 11.50 kg to 50 kg (mean 22.31 kg ± 10.04 SD). Group 2 had 14 dogs trotting, 6 males and 8 females, weighing from 1.95 to 21.35 (mean 6.49 kg ± 4.74 SD). The kinetic data and temporospatial parameters were obtained using a pressure-sensitive walkway. The velocity was maintained between 0.9 and 1.1 m/s. The peak vertical force, vertical impulse, gait cycle time, stance time, swing time, stride length, percentage of body distribution among the four limbs were determined. For each variable the asymmetry indices between right and left sides, for both forelimbs and hind limbs, were calculated. Pearson's correlation coefficient was used to evaluate the linear correlation between stride frequency and other variables. Except for the percentage of body weight distribution, all other kinetic and temporospatial parameters differed between groups. The mean of percentage of body distribution was 29.85 and 20.15 for forelimbs and hind limbs, respectively. There was no statistically significant difference of the asymmetry indices between Groups 1 and 2. Strong negative correlation was observed for most of the temporospatial parameters and strong positive correlation to percentage of swing. There was no significant correlation between stride frequency and percentage of body weight distribution. In conclusion, in a heterogeneous group of dogs in controlled velocity, the percentage of body weight distribution and asymmetry index had low variability. Based on results obtained from correlations, the standardization of stride frequency may be an alternative to minimize the variability of temporospatial parameters