期刊
SENSORS
卷 22, 期 2, 页码 -出版社
MDPI
DOI: 10.3390/s22020672
关键词
perturbed locomotion; fall risk; inertial sensors; gait analysis; coordination
This study investigates the effects of anterior-posterior and medio-lateral perturbations on walking. The findings suggest that anterior-posterior perturbations are more challenging and result in differences in joint angles, range of motion, and inter-joint coordination. Medio-lateral perturbations only affect the ankle joint. These findings can be applied in rehabilitative protocols to reduce the risk of falling.
Daily life activities often require humans to perform locomotion in challenging scenarios. In this context, this study aimed at investigating the effects induced by anterior-posterior (AP) and medio-lateral (ML) perturbations on walking. Through this aim, the experimental protocol involved 12 participants who performed three tasks on a treadmill consisting of one unperturbed and two perturbed walking tests. Inertial measurement units were used to gather lower limb kinematics. Parameters related to joint angles, as the range of motion (ROM) and its variability (CoV), as well as the inter-joint coordination in terms of continuous relative phase (CRP) were computed. The AP perturbation seemed to be more challenging causing differences with respect to normal walking in both the variability of the ROM and the CRP amplitude and variability. As ML, only the ankle showed different behavior in terms of joint angle and CRP variability. In both tasks, a shortening of the stance was found. The findings should be considered when implementing perturbed rehabilitative protocols for falling reduction.
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