ACUTE EFFECT OF VARIOUS EXERCISE INTENSITIES ON COGNITIVE PERFORMANCE

Abstract

The aim of this study was to examine the acute effect of various exercise intensities on coincidence anticipation timing at different stimulus speeds. Fifteen male students who attend to Faculty of Sport Sciences at Mugla Sitki Kocman University, have been dealing with individual or team sports and having licenses for 5 or more years with no health problem or disability, participated in this study voluntarily. Athletes were subject to incremental running protocol on treadmill at 70 percent and 90 percent exercise intensity. Coincidence anticipation timing performances of athletes at each stimulus speeds (6 mph, 9mph and 12 mph) were measured in rest and steady state at each exercise intensity (70 percent and 90 percent). Bassin Anticipation Timer device was used for determining coinciding anticipation timing performance. The data were recorded in SPSS program. Repeated Measures ANOVA, Bonferroni Correction were used. According to, a Repeated Measures ANOVA statistically significant difference was found in mean absolute error scores measured at rest, 70 percent and 90 percent intensity exercises (F(2, 28)=9.446), p=.001, multivariate partial eta squared=.40). Post hoc tests using the Bonferroni correction revealed that coincidence anticipation timing mean absolute error scores (6 mph) were statistically significantly higher at 70 percent and 90 percent intensity exercises than mean absolute scores measured at rest. For 9 mph, statistically significant difference was found in mean absolute error scores measured at rest, 70 percent and 90 percent intensity exercises (F(2, 28)=6.124), p=.006, multivariate partial eta squared=.30). Bonferroni correction explained that mean absolute error scores (9 mph) measured at 70 percent and 90 percent intensity exercises were statistically significantly higher than mean absolute scores measured at rest. For 12mph, no statistically significant difference was found in mean absolute error scores measured at rest, 70 percent and 90 percent intensity exercises (F(2, 28)=1.873), p=.172, multivariate partial eta squared=.11). Mean absolute error scores (12 mph) measured at 90 percent intensity exercises were higher than mean absolute scores measured at rest and 70 percent intensity. In conclusion, it has been seen that high and moderate intensity exercises influence coincidence anticipation timing negatively at low, moderate stimulus speeds. Thus, in the planning of the training programs, it is important to enhance sensory-motor function stamina of athletes for high intensity activities and it is suggested that the athletes could be involved in exercises that improve their response to different stimuli.

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