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Gliserol Hiperhidrasyonunun 30 °C Sıcaklıkta Dayanıklılık Koşusu Süresince Vücut Sıvı ve Elektrolit Dengesine Etkisi

Effect of Glycerol-Induced Hyperhydration on Body Fluid and Electrolyte Balance in Endurance Athletes during The Course of Treadmill Exercise Performed at 30 °C for 90 minute

Journal Name:

  • Selçuk Üniversitesi Beden Eğitimi ve Spor Bilim Dergisi

Publication Year:

  • 2010

Key Words:

Keywords (Original Language):

Author NameUniversity of AuthorFaculty of Author
Abstract (2. Language): 
The purpose of this study was to determine the effects of glycerol-induced hyperhydration on body fluid and electrolyte balance in endurance athletes during the course of treadmill exercise performed at 30C for 90min. 9 elit level male long-distance runner were participated to this study (age: x = 18,7 ±1,3 years, height: x = 170,7±5,2 cm, body weight: x = 58,8±6,6 kg, VO2max: 63,94±3,04 ml.kg-1). First, VO2max of the subjects were determined with an incremental treadmill running protocol. In a randomized, double-blind cross over experimental design subjects were tested three times with 3 days intervals (wash out) following ingestion of 20 ml.kg-1BW of three different mixture of solutions: 1) diluted sports drink with 1.2 gr.kg-1BW glycerol (GS) 2) diluted sports drink (SP) and 3) aspartame flavored distilled water (WS). Exercise trials were conducted at an exercise intensity of 65% maximal oxygen consumption (VO2max) for 90 min at 30±1.8C and 25-35% relative humidity. Blood and urin samples were collected pre and post fluid ingestion, at the 30th, 60th and 90th min of exercise trials to determine body fluid and electrolyte balance. Data were analyzed using two-way (treatmentxtime) analyses of variance (ANOVA). Significance level was defined as p<0.05. No significant difference was found among the three solutions ingested with respect to their effects on fluid and electrolyte parameters (p>0.05). In conclusion, glycerol-induced hyperhydration has no advantage compared to the other solutions ingested on body fluid and electrolyte balance in endurance athletes during 90 min of treadmill run.
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Abstract (Original Language): 
Bu çalışmanın amacı, egzersiz öncesi gliserol, spor içeceği ve su yüklemelerinin sıcak ortamda gerçekleştirilen 90 dakikalık koşu sırasında vücut sıvı-elektrolit dengesi üzerine etkilerinin incelenmesidir. Çalışmaya elit düzeyde 9 uzun mesafe koşucusu erkek denek katılmıştır (yaş: 18,7±1,3 yıl, vücut ağırlığı: 58,8±6,6 kg, boy: 170,7±5,2 cm, VO2maks: 63,94±3,04 ml/kg). Rastgele sıra ve çift kör deneme düzenine göre, 3 gün arayla yapılan 3 farklı sıvı yüklemesini takiben deneklere, maksimal oksijen tüketimlerinin %65’i şiddetinde 90 dk’lık egzersiz testi, 30±1,8 0C oda sıcaklığı ve % 25-35 nem koşullarında uygulanmıştır. Yükleme yapılan solüsyonlar şunlardır: 1) 20 ml.kg-1 safsu ile karıştırılmış 1.2 gr.kg-1 gliserol (GS), 2) 20 ml.kg-1 sulandırılmış hipotonik bir spor içeceği (%2 karbonhidrat) (SP), 3) Aspartam ile tatlandırılmış 20 ml.kg-1 saf su (P). Vücut sıvı-elektrolit dengesindeki değişiklikler; sıvı yüklemesi öncesi ve sonrası, koşu testinin 30., 60. ve 90. dakikalarında alınan kan ve idrar parametreleriyle değerlendirilmiştir. Tekrarlı Ölçümlerde İki Yönlü Varyans Analizi sonuçlarına göre, sıvı yüklemeleri arasında vücut sıvı-elektrolit dengesi üzerine etkileri açısından anlamlı bir farklılık bulunmamıştır (p>.05). Sonuç olarak, elit dayanıklılık sporcularında gliserol, spor içeceği ve su solüsyonlarının vücut sıvı-elektrolit dengesi üzerine etkileri benzerdir.
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  • Turkish

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