Besin Takviyesi: Amino Asit Kullanımı Gereksiz Mi?

bcaa site
Araştırma İncelemeleri Fitness

Besin Takviyesi: Amino Asit Kullanımı Gereksiz Mi?

BCAA ve türevi besin takviyelerinin popülerlikleri arttıkça haklarında yapılan araştırmalar da aynı oranda artış göstermektedir. Son yapılan bir araştırma, yeterli protein alımının sağlandığı koşullarda BCAA’nın içeriğinde yer alan bir amino asit olan lösin alınımının kas gelişimine herhangi bir etkisinin olmadığını tespit etmiştir.⠀

BCAA GEREKLİ MİDİR?⠀

BCAA’nın bu kadar popülerliğinin altında içerisinde bulunan üç amino asitten biri olan lösin yatmaktadır. Geçmiş yıllarda birçok araştırma tek başına lösinin kas protein sentezini olumlu miktarda uyarabildiğini belirtse de, lösinin bu etkisi yeterli somut kanıttan uzaktır.⠀

LOSİN TAKVİYESİ KAS GELİŞİMİ SAĞLAR MI?

Günlük yeterli protein alan kişilerin standart beslenmelerine ek amino asit alımlarının kas kütlesi ve kuvvetine bir faydasının olup olmadığını inceleyen bir araştırma, kuvvet antrenmanı tecrübesi olan 25 erkeğe, 12 hafta boyunca, haftada 2 kez alt vücuda yönelik antrenman uyguladı (1).⠀

Araştırma boyunca katılımcılar sabah ve akşam 5’er gram olmak üzere lösin takviyesi aldı.⠀

Araştırmanın sonucunda, yeterli miktarda protein tüketen kişilerin lösin takviyesi almasının kas kütlesi ve kuvvetine herhangi fayda sağlamadığı tespit edildi.⠀

AMİNO ASİT TAKVİYELERİ GEREKSİZ Mİ?

Lösin her ne kadar kas gelişiminde akut olarak bazı faydalar sunabilse de, kronik araştırmalar bu takviyenin yararlı bir etkisini belirtmemiştir (1,2). Bir baska çalışmada da, kuvvet antrenmanı sonrasında takviye alan ve almayan gruplarda kas gelişimi açısından bir fark tespit edilmemiştir (3).⠀

Bu sonuçlar, düzenli bir beslenmenin varlığında lösin takviyesinin kas gelişimine ekstra fayda sunmadığını belirtmektedir.⠀

SONUÇ

12 haftalık bir dönemde haftada iki kez yapılan kuvvet antrenmanı sırasında lösin takviyesinin kuvvet ve kas gelişiminde etkisiz olduğu belirtilmiştir.⠀

Yeterli beslenmenin varlığında BCAA türü amino asit takviyesinin antrenmanlı kişilerde ekstra bir fayda sağlamamaktadır.⠀

Araştırma, lösin takviyesi olmadan da aynı miktarda kas gelişiminin sağlanabileceğini belirtmektedir.

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