Effects of visual fatigue caused by smartphones on balance function in healthy adults

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  • Park Young-Hyun
    Department of Physical Therapy, College of Medical Sciences, Hanseo University: Hanseo 1-ro, Haemi-Myun, Seosan-Si, Chungcheongnam-do 31962, Republic of Korea Department of Physical Therapy, Chonbuk National University Hospital, Republic of Korea
  • An Chang-Man
    Department of Physical Therapy, College of Medical Sciences, Hanseo University: Hanseo 1-ro, Haemi-Myun, Seosan-Si, Chungcheongnam-do 31962, Republic of Korea Department of Physical Therapy, Chonbuk National University Hospital, Republic of Korea
  • Moon Sung-Jun
    Department of Rehabilitation Science, Graduate School, Daegu University, Republic of Korea Department of Physical Therapy, Chonbuk National University Hospital, Republic of Korea

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<p>[Purpose] The purpose of this study was to determine the effects of visual fatigue caused by smartphone use on balance function. [Subjects and Methods] The participants consisted of 22 healthy male and female adults. Their postural stability, limit of stability, and limit of stability running time were evaluated using a computerized posturography apparatus before and after inducing visual fatigue. Postural stability and the limit of stability were divided into static and dynamic conditions. [Results] There were significant differences between the dynamic postural stability, the static and dynamic limit of stability, and both the static and dynamic limit of stability running times after the induction of visual fatigue. [Conclusion] The results showed that visual fatigue caused by smartphone use has a negative effect on balance function. Therefore, reducing visual fatigue through proper rest is necessary.</p>

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