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

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.

Solak ve sağlak bireylerde el parmak oranlarının karşılaştırılması

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.

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