Decrease of Depth Perception Error Due to Change the Color of the Shuttle in Fatigue Conditions

Depth Perception (DP) plays an important role in many of the motor skills such as badminton and hitting that deal to estimation and moving objects. Furthermore، a variety of different colors according to the features of the human visual system، create difference DP. Based on، the goal of present research was investigating the effect of ball’s color on female student''s DP in fatigue conditions. Population of present research consist of all girls of physical education college who select badminton unit in second semester in 89-90 (75 student) from whom 39 (Meanage=21) was participated voluntarily. First DP test was taken then divided into 3 homogenous groups selectively. All groups play badminton. After making sure of being tired or fatigue (by measuring heart beat and rate of acid lactic) their DP was measured and after this stage athletes were divided to one control group (with white ball) and two experimental group (with phosphoric and blue ball) and play badminton again. Finally، their DP was measured for third time after playing and reaching to fatigue. Repeated Measure ANOVA (RMA) and One-way ANOVA used for investigating and analysis of data، (P<0/05). Findings of present research showed that although there was no significant difference in error of DP between groups but phosphoric color makes significant reduction in errors of athletes’ DP. So، by knowing that fatigue limits DP، we suggest that coaches of badminton can use balls with warm color in final part of their class for reducing error in DP and appropriate performance of athletes.