Nikam Lalita H, Gadkari Jayshree V
Department of Physiology, Seth G.S. Medical College & K.E.M. Hospital, Mumbai - 400 012.
Indian J Physiol Pharmacol. 2012 Jan-Mar;56(1):94-9.
The effect of Age. Gender and Body Mass Index (BMI) on the Visual (VRT) and Auditory reaction time (ART) was studied in 30 males and 30 females in the age group of 18-20 years along with 30 males and 30 females in the age group of 65-75 years. Statistical analysis of the data by one-way ANOVA and post-hoc by Tukey-HSD test showed that BMI, VRT and ART were significantly higher in old than young individuals. Females had higher BMI and longer reaction times than males. There was significant positive correlation between BMI and reaction times (VRT and ART) in both males and females by Pearson correlation analysis. Older individuals should be more careful and vigilant about the injuries and falls due to increased reaction time. Longer reaction times and higher BMI in females could be attributed to fluid and salt retention due to female sex hormones affecting sensorimotor co-ordination.
研究了年龄、性别和体重指数（BMI）对18至20岁年龄组的30名男性和30名女性以及65至75岁年龄组的30名男性和30名女性的视觉反应时间（VRT）和听觉反应时间（ART）的影响。通过单因素方差分析对数据进行统计分析，并通过Tukey-HSD检验进行事后分析，结果显示老年人的BMI、VRT和ART显著高于年轻人。女性的BMI高于男性，反应时间也比男性长。通过Pearson相关分析，男性和女性的BMI与反应时间（VRT和ART）之间均存在显著正相关。由于反应时间增加，老年人应更加小心并警惕受伤和跌倒。女性反应时间较长和BMI较高可能归因于女性性激素影响感觉运动协调而导致的液体和盐分潴留。
