Cross-Sectional Study on Physical Activity and Auditory Reaction Time in Elementary School Students

Abstract Background: The rapid advancement of information and communication technologies has significantly influenced children's lifestyle behaviors, particularly reducing their levels of physical activity. Physical activity plays a vital role in enhancing cognitive and motor functions, including reaction time. Auditory reaction time refers to the time interval between the perception of an auditory stimulus and the execution of a motor response, which is critical for learning processes and classroom responsiveness in school-aged children. This study aimed to investigate the relationship between physical activity levels and auditory reaction time among students at SD Negeri 5 Peguyangan Denpasar. Methods: This analytical observational study employed a cross-sectional design and purposive sampling technique. A total of 38 students who met the inclusion and exclusion criteria were enrolled. Physical activity levels were measured using the Physical Activity Questionnaire for Children (PAQ-C), while auditory reaction time was assessed using Millisecond Software. Data were analyzed using the non-parametric Spearman’s rho test to determine the correlation between variables. Results: The analysis revealed a statistically significant negative correlation between physical activity levels and auditory reaction time (p = 0.017, p < 0.05), with a correlation coefficient of r = –0.384. This finding indicates that higher physical activity levels are associated with faster auditory reaction times. Conclusion: The study concludes that there is a weak but significant inverse relationship between physical activity and auditory reaction time in elementary school students. Promoting physical activity may contribute to improved cognitive-motor responsiveness in children, which is essential for their academic performance and daily activities. Keywords: physical activity, auditory reaction time, children, elementary school, cross-sectional study