Effects of Carbohydrate and Sodium Chloride Mouth Rinses on Repeated Sprint Performance

Abstract

Aim: The purpose of this research is to examine the effects of oral rinsing of CHO and NaCl on repeated sprint performance in trained athletes.

Methods: Fifteen trained athletes (5 women; 10 men) voluntarily participated in the repeated, single-blind, placebo-controlled and crossover design study. Athletes came to the laboratory with a night fasting four times with an interval of at least 48 hours and participated in the repeated sprint test (10 sec × 6, 40 sec intervals) after 30 minutes of endurance exercise (70% maxVO2). At the 0th, 10th, 20th and 30th minutes of the endurance exercise, it was requested to MR with CHO (6.4% maltodextrin), sodium chloride (6.4%) solution and water (placebo) or no rinsing (control).

Results: As a result of the analyzes performed with 3 × 4 ANOVA, the power output variables obtained by repeated sprint performance [peak power, average power, minimum power (W, W/kg) and fatigue index (%)] and fatigue variables (heart rate, blood lactate level and rate of perceived exertion) between sessions were not found to be significantly different.

Conclusion: From the obtained results, it may be concluded that the method and stimuli used in this study seem insufficient to affect the outcome variables of physical performance.

Keywords

• Ergogenic effect
• Fatigue index
• Heart rate
• Lactate level

Karbonhidrat ve Sodyum Kloridi Ağızda Çalkalamanın Tekrarlı Sprint Performansına Etkisi

Abstract

Amaç: Bu çalışmanın amacı, antrenmanlı sporcularda oral CHO ve NaCl ile durulamanın tekrarlanan sprint performansı üzerindeki etkilerini araştırmaktır.

Materyal ve Metot: On beş antrenmanlı sporcu (5 kadın; 10 erkek) gönüllü olarak tekrarlanan, tek kör, plasebo kontrollü ve çapraz tasarım çalışmasına katılmışlardır. Sporcular laboratuvara en az 48 saat arayla dört kez gece açlığı ile gelmişler ve 30 dakikalık dayanıklılık egzersizi (%70 maxVO2) sonrasında tekrarlı sprint testine (10 sn x 6, 40 sn aralıklarla) katılmışlardır. Dayanıklılık egzersizinin 0, 10, 20 ve 30. dakikalarında CHO (%6.4 maltodekstrin), sodyum klorür (%6.4) solüsyonu ve su (plasebo) veya durulamasız (kontrol) ile MR istenmiştir.

Bulgular: 3×4 ANOVA ile yapılan analizler sonucunda, tekrarlı sprint performansı ile elde edilen güç çıkış değişkenleri [tepe güç, ortalama güç, minimum güç (W, W/kg) ve yorulma indeksi (%)] ve yorulma değişkenleri (kalp) oranı, kan laktat düzeyi ve algılanan efor oranı) seanslar arasında istatiksel olarak anlamlı farklılıklar bulunmamıştır.

Sonuç: Elde edilen sonuçlardan, bu çalışmada kullanılan yöntem ve uyaranların fiziksel performansın sonuç değişkenlerini etkilemek için düşük düzeyde etki gösterdiği sonucuna varılabilir.

Keywords

• Ergojenik yardım
• Yorgunluk indeksi
• Kalp atımı
• Laktat seviyesi

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