Yıl: 2012 Cilt: 42 Sayı: 3 Sayfa Aralığı: 545 - 552 Metin Dili: Türkçe

Comparison of all hand digit length ratios in left - and righthanded individuals

Öz:
Amaç: Beyin hemisferlerinden bir tanesi daha baskındır ve hangi hemisferin daha baskın olduğunun bilinmesi bireysel aktivitelerin yönlendirilmesinde önemlidir. Bu çalışma sağlak ve solak kız ve erkek öğrencilerde parmak uzunluğu ve parmak uzunluklarının birbirlerine oranları arasındaki olası farklılıkları saptamak için yapıldı. Yöntem ve gereç: 1-5. parmak uzunlukları ölçüldü (D). Ardından tüm parmakların diğer parmaklara olan oranı hesaplandı (1D:2D, 1D:3D, 1D:4D, 1D:5D, 2D:3D, 2D:4D, 2D:5D, 3D:4D, 3D:5D ve 4D:5D). Bulgular: Erkeklerde parmak uzunlukları ve birbirlerine olan oranları arasında anlamlı fark bulunamadı. Solak kızlarda 5. parmak uzunluğu ve 2D:5D, 3D:5D, 4D: 5D oranları arasında istatistiksel olarak anlamlı fark vardı. Solak kızlarda bu oranlar sol ellerinde sağ ellerine göre daha küçüktü ve 5. parmağın solak kızlarda daha uzun olduğunu gösteriyordu. Sonuç: Bu sonuçlar solak kızların topu yakalamayı gerektiren sporlarda daha başarılı olabileceklerini göstermektedir ve sporcu seçiminde solak kızlarda bu kriterin göz önünde bulundurulması faydalı olacaktır.
Anahtar Kelime:

Solak ve sağlak bireylerde el parmak oranlarının karşılaştırılması

Öz:
Aim: To compare and detect possible differences between the digit length and digit length ratios in left - and righthanded female and male students. One of the cerebral hemispheres is dominant over the other. Knowing a person s dominant hemisphere can be a useful guide in some personal activities. Materials and methods: Digit lengths (D) of the students were measured, followed by calculating the ratio of each digit to the others (1D:2D, 1D:3D, 1D:4D, 1D:5D, 2D:3D, 2D:4D, 2D:5D, 3D:4D, 3D:5D, and 4D:5D). Results: In males, no significant difference was found between digit lengths and digit length ratios. Among left -handed females, the fifth digit length was significantly longer. The 2D:5D, 3D:5D, and 4D:5D ratios were significantly smaller in their left hands, which indicated that the fifth digit was longer in left -handed females. Conclusion: The results of this study suggest that left -handed women could be especially successful in sports that require grasping a ball. This criterion should be considered for left -handed women while selecting athletes.
Anahtar Kelime:

Belge Türü: Makale Makale Türü: Araştırma Makalesi Erişim Türü: Erişime Açık
  • 1. Geschwind N, Levitsky W. Human brain: left -right asymmetries in temporal speech region. Science 1968; 161: 186-87.
  • 2. Cykowski MD, Kochunov PV, Ingham RJ, Ingham JC, Mangin JF, Rivière D et al. Perisylvian sulcal morphology and cerebral asymmetry patterns in adults who stutter. Cereb Cortex 2008; 18: 571-83.
  • 3. Barrick TR, Mackay CE, Prima S, Maes F, Vandermeulen D, Crow TJ et al. Automatic analysis of cerebral asymmetry: an exploratory study of the relationship between brain torque and planum temporale asymmetry. Neuroimage 2005; 24: 678-91.
  • 4. Good CD, Johnsrude I, Ashburner J, Henson RN, Friston KJ, Frackowiak RS. Cerebral asymmetry and the eff ects of sex and handedness on brain structure: a voxel-based morphometric analysis of 465 normal adult human brains. Neuroimage 2001; 14: 685-700.
  • 5. Tan Ü, Kutlu N. Right and left hand skill in relation to cerebral lateralization in right-handed male and female subjects: the prominent role of the right brain in right-handedness. Int J Neurosci 1992; 64: 125-38.
  • 6. Messinger HB, Messinger MI, Graham JR. Migraine and left - handedness: is there a connection? Cephalalgia 1988; 8: 237- 44.
  • 7. Kraemer B, Noll T, Delsignore A, Milos G, Schnyder U, Hepp U. Finger length ratio (2D:4D) and dimensions of sexual orientation. Neuropsychobiology 2006; 53: 210-14.
  • 8. Jürimäe T, Voracek M, Jürimäe J, Lätt E, Haljaste K, Saar M et al. Relationships between fi nger-length ratios, ghrelin, leptin, IGF axis, and sex steroids in young male and female swimmers. Eur J Appl Physiol 2008; 104: 523-29.
  • 9. Brown WM, Hines M, Fane BA, Breedlove SM. Masculinized fi nger length patterns in human males and females with congenital adrenal hyperplasia. Horm Behav 2002; 42: 380-86.
  • 10. Brons JTJ, van Geijn HP, Bezemer PD, Nauta JPJ, Arts NF. The fetal skeleton; ultrasonographic evaluation of the normal growth. Eur J Obstet Gynecol Reprod Biol 1990; 34: 21-36.
  • 11. Budorick NE, Pretorius DH, Johnson DD, Tartar MK, Lou KU, Nelson TR. Three-dimensional ultrasound examination of the fetal hands: normal and abnormal. Ultrasound Obstet Gynecol 1998; 12: 227-34.
  • 12. Lewis S. Morphological aspects of male and female hands. Ann Hum Biol 1996; 23: 491-94.
  • 13. Sharifi -Mollayousefi A, Yazdchi-Marandi M, Ayramlou H, Heidari P, Salavati A, Zarrintan S. Assessment of body mass index and hand anthropometric measurements as independent risk factors for carpal tunnel syndrome. Folia Morphol (Warsz) 2008; 67: 36-42.
  • 14. Yin CS, Park HJ, Seo JC, Lim S, Koh HG. Evaluation of the cun measurements system of acupuncture point location. Am J Chin Med 2005; 33: 729-35.
  • 15. Manning JT, Scutt D, Wilson J, Lewis-Jones DI. Th e ratio of 2nd to 4th digit length: a predictor of sperm numbers and concentrations of testosterone, luteinizing hormone and oestrogen. Hum Reprod 1998; 13: 3000-04.
  • 16. Manning JT, Baron-Cohen S, Wheelwright S, Sanders G. The 2nd to 4th digit ratio and autism. Dev Med Child Neurol 2001; 43: 160-64.
  • 17. Martin JT, Puts DA, Breedlove SM. Hand asymmetry in heterosexual and homosexual men and women: relationship to 2D:4D digit ratios and other sexually dimorphic anatomical traits. Arc Sex Behav 2008; 37: 119-32.
  • 18. Robinson SJ, Manning JT. Ratio of 2nd to 4th digit length and male homosexuality. Evolution and Human Behavior 2000; 21: 333-45.
  • 19. Manning JT, Henzi P, Bundred PE. Th e ratio of 2nd to 4th digit length: a proxy for testosterone and susceptibility to HIV and AIDS? Medical Hypotheses 2001; 57: 761-63.
  • 20. Firman RC, Simmons LW, Cummins JM, Matson PL. Are body fluctuating asymmetry and the ratio of 2nd to 4th digit length reliable predictors of semen quality? Hum Reprod 2003; 18: 808-12.
  • 21. Paul SN, Kato BS, Hunkin JL, Vivekanandan S, Spector TD. The big finger: the second to fourth digit ratio (2D:4D) is a predictor of sporting ability in women. Br J Sports Med 2006; 40: 981-83.
  • 22. Voracek M, Off enmüller D, Dressler SG. Sex differences in directional asymmetry of digit length and its effects on sex differences in digit ratio (2D:4D). Percept Mot Skills 2008; 107: 576-86.
  • 23. Purves D, White LE, Andrews TJ. Manual asymmetry and handedness. Proc Natl Acad Sci USA 1994; 91: 5030-32.
  • 24. Means LW, Walters RE. Sex, handedness and asymmetry of hand and foot length. Neuropsychologia 1982; 20: 715-19.
  • 25. Visnapuu M, Jürimäe T. Handgrip strength and hand dimensions in young handball and basketball players. J Strength Cond Res 2007; 21: 923-29.
  • 26. Manning JT. Digit ratio: a pointer to fertility, behavior and health. New Brunswick (NJ): Rutgers University Press; 2002.
APA KOSİF R, DIRAMALI M (2012). Comparison of all hand digit length ratios in left - and righthanded individuals. Turkish Journal of Medical Sciences, 42(3), 545 - 552.
Chicago KOSİF RENGİN,DIRAMALI MURAT Comparison of all hand digit length ratios in left - and righthanded individuals. Turkish Journal of Medical Sciences 42, no.3 (2012): 545 - 552.
MLA KOSİF RENGİN,DIRAMALI MURAT Comparison of all hand digit length ratios in left - and righthanded individuals. Turkish Journal of Medical Sciences, vol.42, no.3, 2012, ss.545 - 552.
AMA KOSİF R,DIRAMALI M Comparison of all hand digit length ratios in left - and righthanded individuals. Turkish Journal of Medical Sciences. 2012; 42(3): 545 - 552.
Vancouver KOSİF R,DIRAMALI M Comparison of all hand digit length ratios in left - and righthanded individuals. Turkish Journal of Medical Sciences. 2012; 42(3): 545 - 552.
IEEE KOSİF R,DIRAMALI M "Comparison of all hand digit length ratios in left - and righthanded individuals." Turkish Journal of Medical Sciences, 42, ss.545 - 552, 2012.
ISNAD KOSİF, RENGİN - DIRAMALI, MURAT. "Comparison of all hand digit length ratios in left - and righthanded individuals". Turkish Journal of Medical Sciences 42/3 (2012), 545-552.