Concurrent phone texting alters crossing behavior and induces gait imbalance during obstacle crossing
Concurrent phone texting alters crossing behavior and induces gait imbalance during obstacle crossing
复制标题
DOI：
10.1016/j.gaitpost.2018.04.004
复制
发表时间：
2018-05-01
期刊：
影响因子：
2.4
通讯作者：
Chou, Li-Shan
中科院分区：
文献类型：
--
作者：
Chen, Szu-Hua;Lo, On-Yee;Chou, Li-Shan
走路时发短信已经成为非常普遍的日常活动，可能会改变步态表现，尤其是在需要额外视觉注意力的运动中，比如过障。本研究的目的是研究手机短信活动时阻碍步态特征的生物力学变化。研究人员对10名年轻的健康成年人进行了步态分析，要求他们完成以下两项任务：1)在受试者身高的10%处行走并穿越障碍；2)在回复短信的同时行走并穿越障碍。全身运动数据由一个10个摄像头的运动捕捉系统收集。我们的数据表明，在接近和跨越障碍物时，在执行短信时采用保守的步态模式，这表明走路速度较慢，脚趾与障碍物的间隙较大。然而，这种步态模式在穿越时伴随着更大的身体在额平面的摆动，这可能是步态平衡控制受到干扰的迹象。同时发短信增加的视觉注意力需求可能会对年轻行人过障时的安全产生负面影响。
Texting during walking has become a very common daily activity and could alter gait performance, especially during locomotion when additional visual attention is demanded, such as obstacle crossing. The purpose of this study was to examine biomechanical changes in obstructed gait characteristics while engaging in a phone texting activity. Gait analyses were performed on ten young healthy adults under the following two tasks: 1) walking and crossing an obstacle set at a 10% of the subject's height and 2) walking and crossing an obstacle while responding to a text message. Whole body motion data were collected with a 10-camera motion capture system. Our data demonstrated that a conservative gait pattern was adopted while performing texting when approaching and crossing over the obstacle, which was indicated by slower walking speeds and greater toe-obstacle clearances. This gait pattern was, however, accompanied by a greater body sway in the frontal plane during crossing, which could be an indication of perturbed gait balance control. Increased visual-attentional demand from a concurrent phone texting could negatively impact young pedestrians' safety during obstacle crossing.