A Model of Gait Cycle Variability During Human Walking

Other than average gait interval, stride-to-stride variability is believed to convey important information about neural control mechanism. Long-range correlation is found in stride interval variability and scaling index is used to describe the fractal-like behavior. However, the physiological origin and specific mechanism are still unknown. According to our simulation finding, it is found that phase resetting could produce long-range correlation time series data. Consider that phase resetting is also related to the supraspinal neural control system, this paper proposes that it may function as an original mechanism for the gait variability.