Evaluation of inhibitory control of frontal lobe in elderly with different level of physical activity

Physical activity and exercise can reduce cognitive deterioration of aging. The purpose of this study is evaluation of the differences of inhibitory functions of frontal lobe in older adult with different level of physical activity. This cross sectional perform in older adult with mean age 70 ± 5.97 years and mean height 167.7 ± 7.92 cm. Yale physical activity questioner is used for evaluation of level of physical activity and the Stroop color- word test is used for evaluation of inhibition. One way ANOVA is used for comparing groups with different level of physical activity. Findings show that number of error in the first and the third step of Stroop test were significantly different in different level of physical activity. (P Value in both of them was 0.002) The reaction time in the first and the third step of Stroop test were significantly different in different groups. (P Value in orderly was 0.041, 0.006). Comparing mean shows that the group with higher physical activity has higher performance in Stroop test. This study shows that there are correlation between physical activity level and executive function. As mentioned above reaction time, inhibition and selective attention have higher performance in older adults with higher level of physical activity.