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KMID : 1012020150040010032
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Physical Therapy Rehabilitation Science
2015 Volume.4 No. 1 p.32 ~ p.37
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Effects of mobile texting and gaming on gait with obstructions under different illumination levels
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Cha Jae-yun
Kim Hyun-jin
Park Jae-myoung
Song Chang-Ho
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Abstract
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Objective: This study was conducted to test the effects of mobile texting and gaming on gait with obstructions under different illumination levels.
Design: Cross-sectional study.
Methods: Twelve healthy adults aged 20 to 36 years (mean 23.5 years) were tested under six different conditions. All participants used touchscreen smartphones. Testing conditions included: 1) Walking with an obstruction under a bright illumination level; 2) walking with an obstruction with a low level of illumination; 3) walking with an obstruction while texting under a bright illumination level; 4) walking with an obstruction while texting with a low level of illumination; 5) walking with an obstruction while gaming under a bright illumination level; and 6) walking with an obstruction while gaming with a low level of illumination. All participants were asked to text the Korean national anthem by their own phone and play Temple Run 2 using an iPhone 5. Gait variances were measured over a distance of 3 m, and the mean value after three trials was used. A gait analyzer was used to measure the data.
Results: Compared to normal gait with obstruction, gait speed, step length, stride length, step time, stride time, cadence while texting and gaming showed significant differences (p<0.05). Differences between the illumination levels included gait speed, step length, stride length, and step time (p<0.05) with no significant differences in stride time and cadence.
Conclusions: Dual-tasking using a smartphone under low levels of illumination lowers the quality of gait with obstructions.
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KEYWORD
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Cell phones, Gait, Task performance, Lighting
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FullTexts / Linksout information
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Listed journal information
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