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Asian J Kinesiol > Volume 18(2); 2016 > Article
The Official Journal of the Korean Academy of Kinesiology 2016;18(2):33-41.
DOI: https://doi.org/10.15758/jkak.2016.18.2.33    Published online May 31, 2016.
Effects of Smart Phone Use on Pedestrian Crossing
Yeon-Joo Yu, Suk-Bum Kim, Se-Jin Kong
Sangmyung University
Konyang University
LS Networks
Correspondence:  Se-Jin Kong,
Email: sejin.kong@gmail.com
Received: 22 April 2016   • Accepted: 20 May 2016
Abstract
PURPOSE
The purpose of this study was to investigate gait characteristics during walking with performing tasks on a smart phone.
METHODS
Eleven healthy young men(Age: 22.09±2.02yrs, Height: 174.72±4.6cm, Weight: 72.45±12.46kg) performed either texting with internet browser or talking on a smart phone while walking. In order to get the kinematic data, ten cameras, markers and visual 3D program were used. Variables in the three tasks (nornal walking, texting and talking while walking) were analyzed with One-way ANOVA with repeated measures.
RESULTS
Participants who were texting while walking presented significant reductions in gait velocity, horizontal distance between the edge of walkway and heel, stride length, step length, and the velocity of center of mass in anterior·posterior direction. Participants who were texting with a smart phone while walking presented flexion of their head, extension of their trunk, and decrease of range of motion in hip.
CONCLUSIONS
These results show that using a smart phone while walking affects gait function and working memory and influences gait to some degree that it may compromise safety.
Keywords: smart phone, pedestrian walk, dual task, gait


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