VERİLİ ANTRENMAN ŞİDDETLERİNDE YAPILAN EGZERSİZLERE VERİLEN METABOLİK YANITLAR

Bu çalışmanın amacı, verili antrenman şiddetlerinde yapılan egzersizlerde, kalp atım hızı (KAH), kan laktat konsantrasyonu ([La]) ve oksijen tüketimi (VO ) 2 parametrelerinde ortaya çıkan farklılıkları saptamaktır. Çalışmaya, düzenli olarak antrenman yapan yedi yol, dört dağ bisikletçisi katıldı (yaş: 25,2±6,2 yıl, boy: 175,1±5,1 cm, vücut ağırlığı: 70,4±7,3 kg). Denekler, test-tekrar test VO ve laktat testi (LT), birer 2maks kez 2,0 (SŞE-2), 3,0 (SŞE-3) ve 4,0 (SŞE-4) mM kan [La] karşılık gelen sabit şiddetli egzersizlerde (SŞE), [La] ±1 mM değişene kadar veya 30 dk egzersiz yaptılar. Testler sırasında portatif O analizörü (Cosmed K4b2, Italy) ile VO ve KAH, her üç dakikada bir 2 2 kulak memesinden alınan kapiller kandan YSI 1500 laktik asit analizörü ile [La] ölçüldü. Test, tekrar-test güvenirlik katsayısı tüm değişkenlerde 0,92'den büyüktür. Deneklerin tümü SŞE-2 testini tamamladı, SŞE-3 testini dört denek, SŞE-4 testini iki denek tamamlayabildi. SŞE-3'te yanıt (Y) KAH ile kestirim (K) KAH ve SŞE-4'te incelenen tüm parametrelerde, egzersize verilen yanıt ve kestirilen değerler arasındaki fark anlamlı bulundu (p < 0,05). Sonuç olarak, heterojen yapılı bir denek grubunda 3,0 ve 4,0 mM [La]'na denk gelen antrenman şiddetlerinde yapılan uzun süreli egzersizlerdeki çalışma süresi, KAH, VO ve VO'ın kullanılan yüzdesi bireysel olarak değişmekte ve bireyler 2 2maks arasında farklı metabolik zorlanmalar yaratabilmektedir. Buradan hareketle, bireysel cevaplar üzerinden iş yükü belirlenmesinde verili bir antrenman şiddetine verilen cevap ve çalışma süresinin belirlenmesi önemlidir.

VERİLİ ANTRENMAN ŞİDDETLERİNDE YAPILAN EGZERSİZLERE VERİLEN METABOLİK YANITLAR.

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