18
views
0
recommends
+1 Recommend
0 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      Change in Visual Perception and Balance Caused by Different Types of Hat

      research-article
      , PhD, PT 1
      Journal of Physical Therapy Science
      The Society of Physical Therapy Science
      Balance, Hat, Visual perception

      Read this article at

      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          [Purpose] This study aimed to determine the effect of the type of hat worn on balance, eye-hand coordination, and visual perception of normal adults. [Subjects and Methods] Eight healthy male (20.87±1.95 years, 171.38±4.03 cm, 60.75±7.94 kg) and seven female (20.14±0.89 years, 160.57±5.25 cm, 57.14±7.92 kg) university students participated in this study. Balance ability, eye-hand coordination, and visual perception were measured when subjects were bare-headed, and when they wore a hat, cap or hood. [Results] There were significant differences in balance and visual perception according to the type of hat worn, but eye-hand coordination did not change. Therefore, field of vision and visual perception changed according to the type of hat worn. [Conclusion] These results show that field of vision can be blocked, depending on the size of the hat visor, resulting in poor visual perception and consequently balance. Therefore, there are potential risks associated with wearing certain types of hat.

          Related collections

          Most cited references4

          • Record: found
          • Abstract: found
          • Article: not found

          Comparison of balance in older people with and without visual impairment.

          a cross-sectional study was used to compare the balance ability of older people with and without visual impairment.
            Bookmark
            • Record: found
            • Abstract: found
            • Article: not found

            Visual input: its importance in the control of postural sway.

            A new and measurable parameter in the study of static equilibrium is described. Using a minicomputer, the locus of postural sway was measured during 1 minute periods in 144 volunteer subjects, including 105 control subjects and 39 persons with above-knee amputations. It was hypothesized that the above-knee amputee group had lost a relatively predictable degree of proprioception and kinesthetic sense. Vestibular mechanisms were normal and, therefore, constant in both groups. Using a simple arithmetic formula, the effect of such loss of proprioception was estimated by comparing the amputee group with the nonamputee group, while the contribution of visual input was estimated by comparing both groups with their eyes open and closed. Using this parameter, no clear age dependency was demonstrated. The mean locus of sway for the amputee group was the same as the nonamputee group with the eyes open. However, a comparison of the eyes open/eyes closed ratio in both groups demonstrated a significantly greater increase for the amputee group than for control subjects (p less than 0.001). In the future, mean locus of sway might provide a useful clinical method of measurement and the eyes open/eyes closed ratio might provide a simple and useful method to communicate the dependency upon vision in individual patients.
              Bookmark
              • Record: found
              • Abstract: found
              • Article: not found

              Fixation behavior while walking: persons with central visual field loss.

              The aim of this study was to determine the effect of central visual field loss (CFL) on fixation patterns of a person walking towards a target. Subjects were four visually normal persons and 10 persons with CFL. Eye position on scene was recorded and classified into 20 scene categories. The distributions of fixations among scene categories were compared across the two subject groups. For all but two CFL subjects, who fixated primarily at the floor, the distributions of fixations for the CFL subjects ranged from being moderately to strongly correlated with that of the visually normal mean. An analysis of the similarity in the sequence of fixations (or gaze pattern) of the CFL subjects to the visually normal subjects showed a range of 7-66%. Excluding the one CFL subject who had a functioning fovea, sequence similarity was strongly correlated with the logarithm of the minimum angle of resolution (logMAR). The better a person's logMAR, the more closely his or her gaze pattern matched that of the visually normal subjects. Finally, the CFL data were tested against two current models of oculomotor strategy, visual salience and guided search. Similar to what was found with visually normal subjects, CFL subjects appear to use the expected features and general location of the target to guide their fixations, the guided-search strategy.
                Bookmark

                Author and article information

                Journal
                J Phys Ther Sci
                J Phys Ther Sci
                JPTS
                Journal of Physical Therapy Science
                The Society of Physical Therapy Science
                0915-5287
                2187-5626
                28 February 2014
                February 2014
                : 26
                : 2
                : 199-201
                Affiliations
                [1) ] Department of Occupational Therapy, Kangwon National University, Republic of Korea
                Author notes
                [* ]Corresponding author. Hyolyun Roh, Department of Occupational Therapy, Kangwon National University: Hwangio-ri, Samcheok-si, Gangwon-do 240-907, Republic of Korea. (E-mail: withtry@ 123456kangwon.ac.kr )
                Article
                jpts-2013-321
                10.1589/jpts.26.199
                3944288
                24648631
                e1d5070e-7da3-45df-b3d8-4d3c38c33ac8
                2014©by the Society of Physical Therapy Science

                This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial No Derivatives (by-nc-nd) License.

                History
                : 05 July 2013
                : 28 August 2013
                Categories
                Original

                balance,hat,visual perception
                balance, hat, visual perception

                Comments

                Comment on this article