El tercihi, el becerisi ve el kavrama kuvveti ile testosteron ve estradiol arasındaki ilişkiler
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Tarih
1998
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info:eu-repo/semantics/openAccess
Özet
Amaç: Bu çalışma cinsiyet hormonlarının el tercihi, el becerisi ve el kavrama kuvveti üzerine etkili olup olmadığını saptamak amacıyla yapıldı. Yöntem: 40'ı kız, 12'si erkek, 52 gönüllü üniversite öğrencisinde el tercihi Edinburgh el tercihi anketi ile araştırıldı ve Geschwind skoru şeklinde ifade edildi. El becerisi çivi takma testi ile sağ ve sol el için ayrı ayrı değerlendirildi ve sol ve sağ el çivi takma zamanları arasındaki fark hesaplandı. El kavrama kuvveti bir el dinamometresi ile ölçüldü. Serum total testosteron ve estradiol düzeyleri RIA metodu ile ticari kitler kullanılarak tayin edildi. Bulgular: Kızlarda testosteron ile GS (r-0.48), sağ el (r0.72) ve sol el (r0.58) kavrama kuvvetleri, estradiol ile sağ el (r-0.42) ve sol el (r-0.46) kavrama kuvvetleri ilişkili bulundu. Sadece kuvvetli sağlak erkeklerde estradiol ile sağ el (r-0.99) ve sol el (r-0.85) çivi takma zamanları ilişkili idi. Kuvvetli sağlak kızlarda testosteron ile sağ el kavrama kuvveti arasında ilişki saptandı (r-0.40). Sonuç: Bu bulguların kızlarda testosteron seviyesi arttıkça sağlaklığın azaldığını, sağ ve sol el kavrama kuvvetlerinin arttığını, estradiol arttıkça sağ ve sol el kavrama kuvvetlerinin azaldığını; erkeklerde ise sadece kuvvetli sağlaklarda estradiol arttıkça her iki el becerisinin arttığını gösterdiği sonucuna varıldı.
Objective: It was aimed to evaluate whether sex hormones had an effect on hand preference, hand skill and hand grip. Methods: On 52 volunteered university students (40 females, 12 males) hand preference was assessed by Edinburgh Handedness Questionnaire and reported as Geschwind scores (GS). Hand skill was evaluated by peg moving test for both hands separately and difference between them was calculated. Hand grip was determined by a hand dynamometer. Results: In the females testosterone was related to GS (r-0.48), right (r0.72) and left (r0.58) hand grip, estradiol was related to right (r-0.42) and .left (r-0.46) hand grip. Only in strong right handed males, estradiol was related to right hand (r-0.99) and left hand (r-0.85) peg moving time. There was a relation (r-0.40) between testosterone and right hand grip in strong right handed females. Conclusion: This findings show that in females as testosterone increase right handedness decrease, right and left hand grip increase; as estradiol increase right and left hand grip decrease; in strong right handed males as estradiol increase both hand skills increase.
Objective: It was aimed to evaluate whether sex hormones had an effect on hand preference, hand skill and hand grip. Methods: On 52 volunteered university students (40 females, 12 males) hand preference was assessed by Edinburgh Handedness Questionnaire and reported as Geschwind scores (GS). Hand skill was evaluated by peg moving test for both hands separately and difference between them was calculated. Hand grip was determined by a hand dynamometer. Results: In the females testosterone was related to GS (r-0.48), right (r0.72) and left (r0.58) hand grip, estradiol was related to right (r-0.42) and .left (r-0.46) hand grip. Only in strong right handed males, estradiol was related to right hand (r-0.99) and left hand (r-0.85) peg moving time. There was a relation (r-0.40) between testosterone and right hand grip in strong right handed females. Conclusion: This findings show that in females as testosterone increase right handedness decrease, right and left hand grip increase; as estradiol increase right and left hand grip decrease; in strong right handed males as estradiol increase both hand skills increase.
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Genel ve Dahili Tıp
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8
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1
