Further work found that men with a low 2D:4D ratio tended to run faster than men with a high 2D:4D ratio, and that the digit ratio explained up to 25% of variance in endurance running ( Manning et al., 2007).
#2d 4d ratio motor skill jamaica professional#
Manning and Taylor (2001) indicated that feature in professional soccer players (league player in the first team or reserve player, international or non-international player). Scientific evidence shows the importance of a low 2D:4D ratio in athletic performance. However, there is a limited number of studies exploring the value of 2D:4D in determining the potential performance of an individual in power-based sports. In men, there is a significant negative association between 2D:4D and performance in sports and activities which require speed and endurance, such as rugby ( Bennett et al., 2010), running ( Manning et al., 2007), skiing ( Manning, 2002), soccer ( Manning and Taylor, 2001) and gym-based exercises ( Hönekopp et al., 2006). High fetal androgen levels promote the development of efficient cardiovascular systems, good visuo-spatial abilities, physical endurance, speed and a propensity for aggressive behaviors that may be helpful in sports ( Manning and Taylor, 2001). Extensive studies in humans have found correlations between digit ratios and a variety of physiological and psychological conditions, including fertility, athletic ability, sex-biased diseases, social behaviors, and sexual orientation ( Manning et al., 2000 Manning, 2011 Zheng and Cohn, 2011). However, there is evidence that in females 2D:4D fluctuates due to changes of soft tissues across the menstrual cycle ( Mayhew et al., 2007). Moreover, longitudinal studies have shown that values of 2D:4D are relatively stable with growth ( McIntyre et al., 2005 Trivers et al., 2006). For example, males have a lower 2D:4D ratio than females, and this reflects high utero testosterone exposure in their prenatal period ( Fink et al., 2006 Manning and Bundred, 2000). In fact, the 2D:4D ratio has been studied in different research related to human’s physical or even psychological characteristics. The lengths of the index (2D) and ring (4D) fingers would represent a lot of information in humans. As such, 2D:4D may provide additional information, which is valuable in determining the potential athleticism of an individual, when it is used in conjunction with other measures. We also suggest that a low 2D:4D ratio could be linked to performance potential in wrestlers. We concluded that 2D:4D may discriminate between non-elite and world-class wrestlers. No significant differences were noted among the groups for right - left 2D:4D. The 2D:4D ratios of elite wrestlers were lower compared to non-elite athletes (p < 0.01, right hand d = 1.70, left hand d = 1.67) and the control group (p < 0.0001, right hand d = 3.16, left hand d = 2.00). Therefore, the purpose of the present study was to compare the 2D:4D ratio of world-class elite Greco-Roman wrestlers (n = 10) taking part in Olympic fitness camps in 2013 with the 2D:4D ratio of non-elite collegiate wrestlers (n = 20), and age-matched sedentary males (n = 40). Comparing extreme groups on a continuum of sports performance requiring high power (physical strength) output would be helpful to resolve this issue. It has been suggested that 2D:4D is a relatively weak predictor of strength and a stronger predictor of efficiency in aerobic exercise. A low second-to-fourth digit ratio (2D:4D) has been reported to correlate with high performance and athletic potential of an individual in sport.
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