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KMID : 0357220000120010041
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Journal of Korean Society Physical Therapy
2000 Volume.12 No. 1 p.41 ~ p.48
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The Effect of Disturbed Vision on Gait Parameters of the Young Healthy Population
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1김경/1Kyoung Kim
2박영한/3배성수/2Young Han Park/3Jun Soo Bae
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Abstract
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BACKGROUND AND PURPOSE. The purpose of this study is to investigate the
effect of the disturbed vision on the gait distance parameters on the healthy young
population.
SUBJECTS. Twenty four healthy college aged individuals are randomly assigned to
both a condition with a strobe light and the other condition without a strobe light.
METHODS. The instrumentation used for gait analysis is the GaitRite electronic
walkway system with a personal IBM computer. The examiner asked all the subject to
walk 6 times on the gait mat without the strobe light and 6 times on the mat with the
strobe light. The first 4 trials were practice and the last two trials were recorded in
both conditions. The gait parameters analyzed were as follows: velocity, cadence, step
length, and heel to heel base of support.
RESULTS. Paired samples t-test used for this study did not found any significant
differences between the two conditions because the p-values that were analyzed on the
experiment were greater than 0.05. The gait parameters that were analyzed included :
cadence, velocity, left and right heel to heel base of support, and left and right step
length.
DISCUSSION AND CONCLUSION. Based on this population, the condition of
disturbed vision via the effect of the strobe light was not significantly challenging to
compromise the body's sensory systems. However, in the elderly population, these
systems can undergo age related changes. Visual changes rapidly decline in people 60 to
80 years of age and changes in the vestibular system include 20-40% reduction in hair
cells.
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KEYWORD
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