Persistence in postural dynamics is dependent on constraints of vision, postural orientation, and the temporal structure of support surface translations

摘要: Activities of daily living require maintaining upright posture within a variety environmental constraints. A healthy postural control system can adapt to different Afferent sensory information is used determine where the body in relation gravitational vertical and efferent motor commands make corrections with goal keeping center mass base support. The purpose this research was understand how vision, direction translation, temporal correlation support surface stimuli affected persistence characteristics dynamics on short long time scales. Ten young adults performed standing task either eyes open or closed, oriented anteriorly mediolaterally while underwent structured translations based levels correlation-white noise (no correlation), pink (moderate red sinusoidal movements (strong correlations). Center pressure velocity analyzed using fractal analysis control. On scale, shown be stronger mediolateral direction, when structure translation contained correlation. anti-persistence for all structures movement except noise. This study provides deeper insight into flexibility existing human responses through variability.