Parâmetros cinéticos e têmporo-espacial de ovinos hígidos da raça Santa Inês
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Data
2012-07-10
Autores
Agostinho, Felipe Stefan [UNESP]
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Editor
Universidade Estadual Paulista (Unesp)
Resumo
O objetivo do estudo foi avaliar padrões cinéticos e têmporo-espaciais em ovinos hígidos de três diferentes grupos etários, com o emprego de uma plataforma de pressão. Foram utilizados 21 ovinos hígidos, não castrados, fêmeas, da raça Santa Inês, divididos em três grupos de sete animais assim constituídos: Grupo 1 – jovens (idade entre 8 e 12 meses) com peso de 19,5 até 33 kg; Grupo 2 – adultos jovens (2 a 4 anos de idade) com peso de 26,5 a 42,0 kg; Grupo 3 - adultos (acima de 5 anos) com peso de 37,3 até 45,0 kg. Antes da coleta dos dados, os ovinos foram treinados por aproximadamente três semanas. Os parâmetros cinéticos e têmporo-espacias foram aferidos com emprego de uma plataforma de pressão de 1.951mm x 447mm. Os animais foram conduzidos primeiro à esquerda e depois à direita do condutor. Para cada animal foram selecionadas cinco trilhas válidas para cada uma das direções, que foram analisadas em software específico. A trilha foi considerada válida se o ovino caminhou na velocidade (1.1-1.3 m/s) e aceleração (-0.15 a 0.15 m/s2) padronizadas. Foram determinados o Pico de Força Vertical (PFV), Impulso Vertical (IV), duração do ciclo da passada, tempo de apoio, tempo de balanço, comprimento da passada e distribuição do peso corpóreo [(PFV do membro/ΣPFV dos 4 membros) x 100]. Não foram observadas diferenças estatisticamente significantes com relação ao sentido da condução ou entre os lados, tanto nos membros pélvicos como torácicos. Entre os grupos não houve diferença estatística nos valores têmporo-espacias. Nos membros torácicos foram detectadas diferenças estatísticas no pico de força vertical (G1>G3) e impulso vertical (G1>G3) e nos membros pélvicos no pico de força vertical (G1>G3). Foi possível concluir que ovelhas jovens apresentam diferenças...
The aim of this study was to evaluate kinetic and temporospatial parameters in clinically healthy sheep at three different age groups by using a pressure sensing walkway. Twenty-one clinically healthy entire female Santa Ines sheep were divided into three groups: Group 1 – seven animals aged from 8 to 12 months and weighing 19.5-33kg, Group 2 - seven animals aged from 2 to 4 years and weighing 26.5-42kg, and Group 3 - seven animals aged up to 5 years and weighing 37.3-45kg. Before data collection, sheep were trained to be led by halter for a period mean of three weeks. The kinetic and temporospatial parameters of gait were measured by use of a 1.951mm x 447mm pressure-sensitive walkway. The animals were conduced into two different directions, first on left side of the handler, and after on the right side of the handler. The data from the first 5 valid trials in each direction were taken for each sheep and analyzed using designated software. A trial was considered valid if the sheep walked within the correct velocity (1.1-1.3 m/s) and acceleration (from -0.15 to 0.15 m/s2) parameters. Peak vertical force (PVF), vertical impulse (VI), gait cycle time, stance time, swing time, stride length, and the percentage of body distribution among the four limbs [(PVF of the limb/total PVF of the 4 limbs) X100] were determined. No significant differences were observed in all variables between left and right sides or between animal direction, in both forelimbs and hind limbs. There were no significant differences of the temporospatial values among groups. Differences occurred in PVF (%BW) (G1>G3) and VI (G1>G3) in the forelimbs, and PVF (G1>G3) in the hind limbs. In conclusion, younger healthy sheep have differences in some kinetic... (Complete abstract click electronic access below)
The aim of this study was to evaluate kinetic and temporospatial parameters in clinically healthy sheep at three different age groups by using a pressure sensing walkway. Twenty-one clinically healthy entire female Santa Ines sheep were divided into three groups: Group 1 – seven animals aged from 8 to 12 months and weighing 19.5-33kg, Group 2 - seven animals aged from 2 to 4 years and weighing 26.5-42kg, and Group 3 - seven animals aged up to 5 years and weighing 37.3-45kg. Before data collection, sheep were trained to be led by halter for a period mean of three weeks. The kinetic and temporospatial parameters of gait were measured by use of a 1.951mm x 447mm pressure-sensitive walkway. The animals were conduced into two different directions, first on left side of the handler, and after on the right side of the handler. The data from the first 5 valid trials in each direction were taken for each sheep and analyzed using designated software. A trial was considered valid if the sheep walked within the correct velocity (1.1-1.3 m/s) and acceleration (from -0.15 to 0.15 m/s2) parameters. Peak vertical force (PVF), vertical impulse (VI), gait cycle time, stance time, swing time, stride length, and the percentage of body distribution among the four limbs [(PVF of the limb/total PVF of the 4 limbs) X100] were determined. No significant differences were observed in all variables between left and right sides or between animal direction, in both forelimbs and hind limbs. There were no significant differences of the temporospatial values among groups. Differences occurred in PVF (%BW) (G1>G3) and VI (G1>G3) in the forelimbs, and PVF (G1>G3) in the hind limbs. In conclusion, younger healthy sheep have differences in some kinetic... (Complete abstract click electronic access below)
Descrição
Palavras-chave
Santa Inês (Raça de ovino), Locomoção animal - Pesquisa, Distúrbios de locomoção
Como citar
AGOSTINHO, Felipe Stefan. Parâmetros cinéticos e têmporo-espacial de ovinos hígidos da raça Santa Inês. 2012. 48 f. Dissertação (mestrado) - Universidade Estadual Paulista, Faculdade de Medicina Veterinária e Zootecnia, 2012.