Influence of digit ratio (2D:4D) on reaction time and athletic sprint performance: A short term pilot study
Journal Title: Medpulse International Journal of Physiology - Year 2018, Vol 5, Issue 2
Abstract
Digit Ratio is the ratio between the lengths of index finger to that of Ring finger. Recent evidence suggests that the relative length of the 2nd to 4th finger (2D: 4D ratio) is a biomarker for prenatal exposure to testosterone. In our study, we investigated the influence of digit ratio on reaction time and performance of athletes in short duration aggressive sport events like 100 meters sprint. This observational study was conducted on 38 healthy athletes, 20 female and 18 male. Athletes practicing since one month are only allowed to participate in our study. The digit length was measured by using Digital Vernier calliper. The reaction time of the participants was calculated by using android mobile app named “Reaction Time”. The results showed that the digit ratio of left hand done with Ventral method or by Dorsal method was significantly better than the right hand measurements (p<0.05). The outcome parameter of performance was analysed by Logistic regression and it showed that there is no significant correlation or influence of the factors like gender, digit ratio, and reaction time difference on the performance. The same results were obtained when the male and female performers were analysed separately by Logistic regression on the same parameters like digit ratio and reaction time difference. The “pearsons” correlation between sprint time and digit ratio of left hand, measured by “Dorsal” method showed statistically significant (p < 0.05).correlation coefficient (R = 0.32). The correlation coefficient (R = 0.32) is showing moderate level of correlation between these two factors. The linear regression between digit ratio and sprint shows that there is a positive correlation between these two factors. The overall study shows that there is a moderate correlation between performance (sprint time) and digit ratio.
Authors and Affiliations
M K Tambe, A V Turankar, S Lingawar, N B Dhokane, N P Pophali, P M Kherde, Vinay Bajaj
Keywords
Related Articles
- EP ID EP288561
- DOI -
- Views 174
- Downloads 0
Cognitive status in hypothyroid patients before and after attainment of euthyroidstate: A prospective study at tertiary care centre
Background: Thyroid hormones have profound effects on the central nervous system and the consequences of overt hypothyroidism are well known. In contrast, there is less evidence regarding cognitive effects of subclinical...
A study of FEV1 in relation to body mass index among smokers
Background: FEV1 is the most specific and dependable measure of airway obstruction. Because of the reliability and simplicity of equipment needed to measure FEVI this parameter is used most frequently to measure bronchia...
Effect of educational strategies on improvement of academic performance of low achievers in first MBBS physiology students
Background: In spite of having high quality in conventional didactic lectures, practical sessions and extra theory classes, low academic performance of some of the students in medical colleges is of great concern. We are...
Study of effect of cement dust on lung function in cement factory workers
Background: Normal function of lungs is an important aspect of healthy life which is neglected by many peoples. Chronic exposure to cement dust has long been associated with the prevalence of respiratory problems and air...
Association between television viewing and risk of metabolic syndrome, a community based study
Background: Metabolic syndrome, a constellation of interconnected physiological, biochemical, clinical, and metabolic factors that directly increase the risk of cardiovascular disease and type 2 diabetes mellitus is beco...