Limb dominance changes in walking evolution explored by asymmetric correlations in gait dynamics

作者：Echeverria Juan C; Rodriguez Eduardo; Velasco Alejandra; Alvarez Ramirez Jose^*

来源：Physica A: Statistical Mechanics and Its Applications , 2010, 389(8): 1625-1634.

DOI：10.1016/j.physa.2009.12.025

• Locomotion
• Stability
• Asymmetry
• Detrended Fluctuation Analysis (DFA)
• Gait transition

Fluctuations In the stride interval time series of unconstrained walking are not random but seem to exhibit long-range correlations that decay as a power law (Hausdorff et al (1995) [35]) Here, we examine whether asymmetries are present in the long-range correlations of different gait parameters (stride, swing and stance intervals) for the left and right limbs. Gait dynamics corresponding to 16 healthy subjects were obtained from the Physionet database. which contains stride, stance and swing intervals for both left and right limbs Detrended Fluctuation Analysis (DFA) revealed the presence of asymmetric long-range correlations in all gait cycle variables investigated A rich variety of scaling exponent dynamics was found, with the presence of synchronicity. decreased correlations and dominant corre

• 出版日期2010-4-15