##Shahbazi-Moghaddam M, Mehdizadeh R, Aminian T. 2000. Biomechanical analysis of the relationship between anthropometric sizes with speed and force in elite adolescent backstroke swimmers of Tehran Province. J of the Olympic. 1&2(15): 63-78. [Persian].## Wallen K. 2009. Does finger fat produce sex differences in second to fourth digit ratios? Endocrinology. 150 (11): 4819-4822.## Beaton AA, Rudling N, Kissling C, Taurines R, Thome J. 2011. Digit ratio (2D:4D), salivary testosterone, and handedness. Laterality. 16(2):136-55.## Manning JT, Scutt D, Wilson J, Lewis-Jones DI. 1998. The ratio of the 2nd and 4th digit length: A predictor of sperm numbers and concentrations of testosterone, luteinizing hormone, and oestrogen. Hum Reprod. 13 (11): 3000–3004.## Kondo T, Zakany J, Innis Jw, Duboule D. 1997. Of fingers, toes, and penises. Nature. 6;390(6655):29.## Manning JT, Bundred PE, Taylor R. 2003. The ratio of 2nd and 4th digit length: a prenatal correlate of ability in sport. In: Reilly T, Marfell-Jones M (eds), Kinanthropometry VIII. Routledge. (Vol VIII)165–174.## Voracek M, Loibl LM. 2009. Scientometric analysis and bibliography of digit ratio (2D:4D) research, 1998– 2008. Psychol Rep. 104(3): 922–956.## Manning JT, Morris L, Caswell N. 2007. Endurance running and digit ratio (2D:4D): Implications for fetal testosterone effects on running speed and vascular health. Am J Hum Biol. 19(3): 416–421. ## Hönekopp J, T Manning J, Müller C. 2006. Digit ratio (2D:4D) and physical fitness in males and females: Evidence for effects of prenatal androgens on sexually selected traits. Horm Behavior. 49(4): 545–549.## Lutchmaya S, Baron-Cohen S, Raggatt P, Knickmeyer R, Manning JT. 2004. 2nd to 4th digit ratios, fetal testosterone and estradiol. Early Hum Dev. 77(1-2): 23–28.## Jürimäe T, Voracek M, Jürimäe J, Lätt E, et al. 2008. Relationships between finger-length ratios, ghrelin, leptin, IGF axis, and sex steroids in young male and female swimmers. Eur J Appl Physiol. 104(3):523–529. ## Grandys M, Majerczak J, Duda K, Zapart-Bukowska J, Sztefko K, Zoladz JA. 2008. The effectt of endurance training on muscle strength in young, healthy men in relation to hormonal status. J Physiol Pharmacol. 59 (7):89-103.## Volek JS, Kraemer WJ, Bush JA, Incledon T, Boetes M. 1997. Testosterone and cortisol in relationship to dietary nutrients and resistance exercise. J Appl Physiol. 82(1):49-54.## Duclos M, Guinot M, Le Bouc Y. 2007. Cortisol and GH: Odd and controversial ideas. Appl Physiol Nuter Metab. 32(5):895-903.## Nemet D, Oh Y, Kim HS, Hill MA, Cooper DM. 2002. Effect of intense exercise on inflammatory cytokines and growth mediators in adolescent boys. Pediatrics. 110(4): 681-689.## Lynch, G. S., Schertzer, J. D. and Ryall, J. G. 2008. Anabolic Agents for Improving Muscle Regeneration and Function after Injury. Clinical and Experimental Pharmacology and Physiology. 35: 852–858.## Hager-ross C, and rosbland B. 2002. Norms for grip strength in children aged 4-16 years. Acta Paediatr. 91(6):617-25.## Visnapuu M, Jürimäe T. 2007. Handgrip strength and hand dimensions in young handball and basketball players. J Strength Conditioning Research. 21(3):923-929.## Quaine F, Vigouroux L, Martin L. 2003. Effect of simulated rock climbing finger postures on force sharing among the fingers. Clin Biomech. 18(5): 385-388.## Blackwell JR, Kornatz KW, Heath EM. 1999. Effect of grip span on maximal grip force and fatigue of flexor digitorum superficialis. Appl Ergon. 30(5):401-5.## Roemmich JN, Frappier JP. 1993. Physiological Determinants of Wrestling Success in High School Athletes. Pediatric Exercise Science. 5(2): 134-144.## Horswill CA. Applied physiology of amateur wrestling. 1992. Sports Med. 14(2):114-43## Nicolay CW, Walker Al. 2005. Grip strength and endurance: Influence of anthropometric variation, hand dominance and gender. Int J Ind Ergon. 35(7):605-618.## Voracek M, Reimer B, Ertl C, Dressler SG. 2006. Digit ratio (2D:4D), lateral preferences, and performance in fencing. Percept Mot Skills. 103(2):427–446.## Manning JT. 2002. The ratio of 2nd to 4th digit length and performance in skiing. J Sports Med Phys Fitness. 42(4):446–450.## Hubner – Wozniak E, Kosmol A, Lutoslawska G, Beam EZ. 2004. Anaerobic performance of arms and legs in male and female free style wrestlers. J Sci Med Sport. 7(4): 473-80## Yoon J. 2002. Physiological profiles of elite senior wrestlers. Sports Med: 32(4):225-33.## Manning JT, Taylor. RP. 2001. Second to fourth digit ratio and male ability in sport implications for sexual selection in humans. Evol Hum Behav. 22(1):61–69.## Ching-Lin W , Wei H , Shin-Yuan W ,Chen-Kang Ch. 2008. Hormonal responses in heavy training and recovery periods in elite male Weight lifter. J Sports Sci Med. 7(4): 560–561.## Häkkinen K, Pakarinen A, Kraemer WJ, Häkkinen A, Valkeinen H, Alen M. 2001. Selective muscle hypertrophy, changes in EMG and force, and serum hormones during strength training in older women. J Appl Physiol. 91(2): 569–580.## Hillman TE, Nunes QM, Hornby ST, Stanga Z, Neal KR, Rowlands BJ, et al. 2005. A practical posture for hand grip dynamometry in the clinical setting. Clin Nutr . 24(2): 224-8.##
)