Effect of simulated sensorimotor noise on kinematic variability and stability of a biped walking model.

Effect of simulated sensorimotor noise on kinematic variability and stability of a biped walking model. Comput Methods Biomech Biomed Engin. 2021 Jan 11;:1-7 Authors: Mehdizadeh S, Glazier PS Abstract Whether higher variability in older adults' walking is an indication of increased instability has been challenged recently. We performed a computer simulation to investigate the effect of sensorimotor noise on the kinematic variability and stability in a biped walking model. Stochastic differential equations of the system with additive Gaussian white noise was constructed and solved. Sensorimotor noise mainly resulted in higher kinematic variability but its influence on gait stability is minimal. This implies that kinematic variability evident in walking gaits of older adults could be the result of internal sensorimotor noise and not an indication of instability. PMID: 33426927 [PubMed - as supplied by publisher]
Source: Computer Methods in Biomechanics and Biomedical Engineering - Category: Biomedical Engineering Authors: Tags: Comput Methods Biomech Biomed Engin Source Type: research