An Examination of the Relationship between 2d:4d Finger Length Proportions and Anaerobic Power in Athletes

Abstract

The objective of this study is to examine the relationship between 2d:4d finger length proportion and anaerobic power in athletes. The study covered 36 voluntary basketball, football and volleyball players of various sports clubs with an average age of 22.66±3.48 years and training age of five years or more. Participating athletes were briefed about the study and measurements to be made and signed an Informed Voluntary Consent Form. ID Information was taken as basis to determine the ages of the participating athletes. Body height and weight as well as the length of index finger (2d) and ring finger (4d) of the dominant hand of the participating athletes were measured by means of a digital compass with 0.01 mm sensitivity. Anaerobic power was calculated in the Lewis formula by taking the vertical jumping test measurements.Data obtained were evaluated in the SPSS statistical software package. Measurement results were presented in arithmetic mean and standard deviation.The power and direction of the relationship between anaerobic power values and finger length of the players was determined by means of the Pearson correlation analysis. The value of p<0.05 was accepted as significant. The studyrevealed a strong relationship between the anaerobic power averages of athletes and the 4d finger length (r=0.573). As a conclusion, the fact that there is a correlation between the length of finger 4d and dominance of testosterone hormones in human beings based on the knowledge in the literature can be interpreted as that athletes with longer 4dfingers have higher anaerobic power values. Such studies should be conducted on multiple subjects and multiple repetitions to establish a general norm.