運動が視覚機能に与える影響に関する研究 : 運動が動体視力に与える影響について

概要

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In order to find out the effects of kinetic visual acuity of physical exercise, the kinetic visual acuity was measured with kinetic visiontester (AS-4A, Kowa) in resting state (before exercise), during 15 minutes exercise and recovery period of 21 minutes. The subjects were 15 health normal male students, ranged in age 20-22 years. The exercise was given by the bicycle ergometer that is provided with head fixed equipment. The index of load intensity was expressed as heart rate ; approximately 110 beats / minute (light load), 140-150 (middle load) and 170-180 (heavy load) at 7 minutes after the start on pedalling, and that level was continued with steady state over the work. The results were as follows. 1) In resting state, the average values of static visual acuity (SVA) and kinetic visual acuity (KVA) were 1.45 and 1.20. Therefore, the difference between SVA and KVA were 0.25. 2) At the start on pedalling (during exercise), the KVA tended to deteriorate from resting state, and after the exercise (recovery period) gradually recovered to resting state. 3) According to the increase of load intensity, the tendency of deterioration was more remarkable, and the time of recovery was later. 4) The correlation was observed between rate of variation of KVA (%), (X) and rate of increase of heart rate (%), (Y) ; Y=-0.181X + 1.755, r=-0.886(p<0.001). With the increase in heart rate, the KVA deteriorate.
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