Lower limb muscle coactivation levels in healthy younger and older adults during functional dual-task gait

被引：11
|
作者：
Hallal, Camilla Zamfolini [1 ,2 ]
Marques, Nise Ribeiro [1 ,2 ]
Vieira, Edgar Ramos [4 ]
Brunt, Denis [4 ]
Spinoso, Deborah Hebling [1 ,3 ]
Castro, Alex [1 ,2 ]
Cardozo, Adalgiso Coscrato [1 ,2 ]
Goncalves, Mauro [1 ,2 ,3 ]
机构：
[1] Sao Paulo State Univ, UNESP, Biosci Inst IB, Biomech Lab, BR-13506900 Rio Claro, SP, Brazil
[2] Sao Paulo State Univ, UNESP, Biosci Inst IB, Dept Phys Educ, BR-13506900 Rio Claro, SP, Brazil
[3] Sao Paulo State Univ, UNESP, Dept Physiotherapy, Sao Paulo, Brazil
[4] Florida Int Univ, Dept Phys Therapy, Miami, FL 33199 USA
来源：
MOTRIZ-REVISTA DE EDUCACAO FISICA | 2013年 / 19卷 / 03期
关键词：
elderly; gait; coactivation; falls; FALLS; WALKING; VARIABILITY; STABILITY;
D O I：
10.1590/S1980-65742013000300013
中图分类号：
G8 [体育];
学科分类号：
04 ; 0403 ;
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.
引用
收藏
页码：620 / 626
页数：7
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