Derya ÇETİN SARIŞIK, Hülya ANDRE, Erkan TORTU, Gökhan DELİCEOĞLU

Akut Yüksek Doz Taurin Takviyesinin Tükenme Zamanına Kadar Yapılan Koşu Performansına Etkisi

Bu çalışmanın amacı tükenme zamanına kadar yapılan artan şiddetli koşu performansından 90 dakika önce akut olarak tüketilen yüksek doz izole taurin takviyesinin (6 g), maksimal oksijen alımı (VO2max), maksimal kalp atım hızı (HRmax), tükenme zamanı (TTE) ve algılanan zorluk derecesi (AZD) üzerindeki etkisini araştırmaktı. Çalışmaya 10 antrenmanlı, yarışmacı, dayanıklılık (biatlon) sporcusu katılmıştır. Çalışmada çift-kör randomize çapraz geçişli çalışma dizaynı kullanılmıştır. Katılımcılara egzersiz protokollerinden 90 dk önce ~500 ml şekersiz limonata ile karıştırılmış 6 g taurin (Hardline Nutrition; 100% pure) ya da hiçbir şey eklenmeden şekersiz limonata (plasebo) takviyesi verilmiştir. Artan şiddetli koşu protokolü 6km·h-1 hızla başlamıştır ve katılımcılar bu sabit hızda 6 dakika ısındıktan sonra, koşu bandının hızı saniyede 0.016 km/h, eğimi ise dakikada %0,5 artmıştır. Katılımcıların VO2 ve HR değerleri koşu bandı protokolleri süresince kaydedilmiştir. AZD her denemeden sonra Borg skalası (6-20 puan) ile ölçülmüştür. Bu çalışmanın sonucunda, tükenme zamanına kadar yapılan artan şiddetli koşu performansından 90 dakika önce akut olarak tüketilen 6 gr izole taurin takviyesinin HRmax, TTE ve RPE değerlerinde plasebo müdahalesine kıyasla istatiksel olarak anlamlı fark oluşturmadığı saptanmıştır. VO2max değerinde ise istatiksel olarak anlamsız ancak %2 gelişim sağlandığı görülmüştür.

Anahtar Kelimeler:

Ergojenik yardım, Kalp atım hızı, Maksimum oksijen alımı, Taurin, Tükenme zamanı, Ergogenic aid, Maximal heart rate, Maximal oxygen uptake, Taurine, Time to exhaustion

The Effect of High-Doses of Taurine Ingestion on Time to Exhaustion Running Performance

The study aimed to investigate the effect of acutely consuming high-dose isolated 6 g of taurine 90 min before incremental treadmill-running time to exhaustion (TTE) performance on maximal oxygen uptake (VO2max), maximal heart rate (HRmax), TTE, and ratings of perceived exertion (RPE). A total of ten well-trained, competitive male endurance (biathlon) athletes participated in this study. A double-blind, randomized crossover design was used in the study and consisted of three separate testing sessions. During the second and third sessions, 90 min before the exercise protocols, participants consumed ~500 ml of a sugar-free lemonade drink with either 6 g of taurine or nothing added (placebo). The incremental treadmill-running TTE performance started at 6km·h-1, and the participants warmed up for 6 minutes at this constant speed. After a warm-up, the treadmill's speed was increased by 0.016km/h per second, and the slope of the treadmill was increased by 0.5% for each 60 seconds. Oxygen uptake (VO2) and HR were measured while the participant was running on the treadmill. RPE was measured immediately after each trial using the Borg Scale (6-20 points). As a result, the acute ingestion of 6 g of taurine 90 min before incremental treadmill-running TTE performance did not enhance TTE, HRmax, and RPE but did result in a non-significant slight change in VO2max (2%).

Keywords:

Ergogenic aid, Maximal heart rate, Maximal oxygen uptake, Taurine, Time to exhaustion,

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