文章基本信息

标题：Lower limb muscle coactivation levels in healthy younger and older adults during functional dual-task gait
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作者：Camilla Zamfolini Hallal ; Nise Ribeiro Marques ; Edgar Ramos Vieira 等
期刊名称：Motriz. Journal of Physical Education. UNESP
印刷版ISSN：1980-6574
出版年度：2013
卷号：19
期号：3
页码：620-626
DOI：10.5016/7084
语种：English
出版社：UNESP - São Paulo State University
摘要：The purpose of this study was to investigate the influence of daily cognitive task on stiffness of old and young female adults during the gait. The study included 17 physically active younger and 18 older women, with low risk of falls. The volunteers were asked to walk on the treadmill at two different gait conditions: normal gait and functional dual-task gait. The electromyographic signals were collected of the lower limb muscles. The percentage of coactivation for the tibialis anterior/gastrocnemius lateralis and tibialis anterior/soleus were significantly higher in elderly than in younger in the normal gait and dual-task gait. Our results suggest that the elderly have a greater stiffness in the ankle joint during gait normal and daily dual task gait. Thus, we conclude that challenging cognitively situations during the gait may increase the risk of falls in this population.
其他摘要：The purpose of this study was to investigate the influence of daily cognitive task on stiffness of old and young female adults during the gait. The study included 17 physically active younger and 18 older women, with low risk of falls. The volunteers were asked to walk on the treadmill at two different gait conditions: normal gait and functional dual-task gait. The electromyographic signals were collected of the lower limb muscles. The percentage of coactivation for the tibialis anterior/gastrocnemius lateralis and tibialis anterior/soleus were significantly higher in elderly than in younger in the normal gait and dual-task gait. Our results suggest that the elderly have a greater stiffness in the ankle joint during gait normal and daily dual task gait. Thus, we conclude that challenging cognitively situations during the gait may increase the risk of falls in this population.
关键词：elderly, gait, coactivation, falls;idosos, marcha, coativação, quedas.
其他关键词：elderly, gait, coactivation, falls