Effects of age, gender, and anthropometric measurements on simple visual and auditory reaction time in healthy Indian adults

ABSTRACT

Background: Reaction time (RT) is the time interval between the application of a stimulus and voluntary motor response. Both visual and auditory RT reflect the cognitive function of an individual specially in spatial skills. Aims and Objective: This study aims to find the correlation between age, gender, and anthropometric measurements on simple visual and auditory RT. Material and Methods: One hundred healthy volunteers of both the genders (males 52 and females 48) aged between 18 and 50 years were recruited. RT is the elapsed time between the presentation of a stimulus and the subsequent behavioral response to occur. Subjects were presented with red light and 1000 Hz tone sound stimuli for both the genders. In RT there is coordination between the sensory and motor system occurs. The height, weight, waist circumference, and waist–hip ratio (WHR) were measured to observe the effects of these measurements on visual reaction time (VRT) and auditory reaction time (ART). Results: Statistical analysis of the data by one-way ANOVA with post hoc by Turkey HSD test was found significant with age, gender, and other anthropometric measurements WHR, BSA, and waist circumference) with P-value of 0.027, 0.067; 0.001, 0.125 and BMI 0.135 and 0.200; WHR 0.086 and 0.043; 0.050 and 0.064, respectively. Conclusion: As hypothesis suggests when BMI is increased, there is a significant increase in RT. The VRT and ART both are increased in female than male. RT increases as the age increases especially after 40 years. Objective: The objective of the study was to find the correlation between age, gender, and anthropometric measurements on simple visual and auditory RT.