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KMID : 1012020140030010043
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Physical Therapy Rehabilitation Science
2014 Volume.3 No. 1 p.43 ~ p.48
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Influence of mobile phone texting on gait parameters during ramp ascent and descent
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Kim Hyun-jin
Park Jae-myoung
Cha Jae-yun
Song Chang-Ho
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Abstract
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Objective: The purpose of this study was to examine the influences on gait features during mobile phone use while ramp walking.
Design: Cross-sectional study.
Methods: Thirty-three healthy adult subjects performed four walking conditions on an outside ramp with a 5 m length, 1.5 m width, and a 5° angle. All participants were touch screen mobile phone users. Four walking conditions were used: 1) ramp ascent, 2) ramp descent, 3) texting during ramp ascent, and 4) texting during ramp descent. In conditions 3) and 4), subjects texted the words of “Aegukga”?the song of patriotism?while walking. Upon the signal of start, the subjects walked the ramp during texting. Gait parameters were measured at the length of 3 m excluding 1 m of the start and end of the total length. Each situation was repeated three times for each subject, and mean values were calculated. For gait examination, a gait analyzer was used (OptoGait).
Results: Subjects ranged in age from 23 to 38 years (mean age, 27.73). Eighty-three percent of subjects in our study had experienced an accident during mobile phone use. Texting on a mobile phone while walking significantly decreased ramp gait, speed, cadence, stride length, step length, and single support (p<0.05) and significantly increased stride time, step time, gait cycle, and double support (p<0.05). There was a significant difference in cadence, step length, stride time, step time, and single support during ramp ascent and descent (p<0.05).
Conclusions: Texting on a mobile phone while walking significantly decreased gait quality.
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KEYWORD
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Cellular phone, Gait, Text messaging
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FullTexts / Linksout information
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Listed journal information
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