Influência de movimentos oculares sacádicos no equilíbrio postural de idosos praticantes de vôlei adaptado e idosos sedentários

• Autor(a) principal: Sousa, Luiz Fernando de [UNESP]
• Data de Publicação: 2015
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://hdl.handle.net/11449/134067; http://www.athena.biblioteca.unesp.br/exlibris/bd/cathedra/13-01-2016/000856657.pdf
• topic: Motor ability; Capacidade motora; Idoso; Olhos - Movimentos; Postura humana; Equilibrio (Fisiologia); Voleibol

Human aging is characterized by several changes, both morphological as functional, which may result in a physical, functional, cognitive and daily life decline. Elderly people with significant sensory loss of vision and proprioception seem have difficulty to maintain a stable position. Many central nervous system structures share the involvement of eye and postural control, but the visual mechanism in charge of postural control are still unclear. There are conflicting evidence about the possibility of saccadic movements improve or deteriorate the postural stabilization and that physical exercise affects in postural control. The aim of this study was to determine the influence of horizontal saccadic eye movements of low and high frequency balance of elderly practitioners of adapted volleyball and sedentary elderly. Fifteen elderly practitioners of adapted volleyball and fifteen sedentary elderly were evaluated. The groups performed three trials in each sensory condition with a duration of 30 seconds each trial, in a standing position, barefoot, with bipedal base and feet shoulder-width apart on a force platform AMTI ®, which measured the corporal oscillations in 6 sensory conditions set according to the surface (stable base and unstable base) and the visual stimulus (fixation, slow saccadic movements and fast saccadic movements). The eye movement was recorded by an eye movement system ASL®. The results showed no significant differences between the groups, however, showed that in the stable base the corporal sway was significantly lower than in the unstable base. Regarding the influence of the visual conditions on postural control, that saccadic movements of low and high frequency reduced corporal sway when compared with the visual condition of fixing. We concluded that there were no significant differences in postural balance between elderly adapted volleyball practitioners and sedentary elderly, that when the support base is stable, ...