Comparison of the effects of creatine monohydrate, sodium bicarbonate and their combined administration on anerobic performance and blood lactate level in wrestlers
Background And Objective
Creatine and sodium bicarbonate are energizer supplements used by sportsmen to reduce fatigue and increase power output in sprints − short, strenous excecises − such as rapid running and explosive movements.The purpose of this study was to compare the effects of creatine monohydrate, sodium bicarbonate and their combined administration on anerobic performance and blood lactate level in wrestlers.
Materials And Methods
A group of 24 national Iranian junior male wrestlers with a mean age, height, weight and body mass index (BMI) of 17.7±4.76 years, 179.6±7.39cm, 1±9.94 kg and 23.17+1.92 kg/m2, respectively, participated in this this tudy. They all took a placebo for 2 days (20 g maltodextrin/day) and then completed six 10-second Wingate sprints, with a 60-second active rest between each 2. After a lapse of 10 days, the subjects were randomly assigned, on the basis of base power and body weight, to a creatine (Cr; 20g creatine/day), sodium bicarbonate (Sb; 0.065 g/kg sodium bicarbonate/day) or creatine-plus-sodium bicarbonate (Cr + Sb; 5g Cr + 0.065 g/kg sodium bicarbonate/day) supplement, using a double-blind design. They took the supplements and the placebo 4 times daily at 9 AM, noon (12’oclock), 6 PM and 10 PM and drank large amounts of water. In the next phase of the study, 2 days after taking the supplements/placebo, the Wingate tests (six 10-second tests) were repeated and relative peak powers (PP), relative mean power (MP) and fatigue index (FI) were assessed. Blood lactate was measured in a hand-finger blood sample before, immediately and 3 minutes after the last Wingate sprint. The data were analyzed, the statistical tests being repeated measures, t-test and ANOVA. An alpha of p≤0.05 was used to determine statistical significance.
The data show statistically significant increases in PP, MP, and blood lactate level in the Cr+Sb, Cr and Sb supplement groups as compared to the placebo group (p0≥.05). Also blood lactate level and fatigue index immediately and 3 minutes after the last Wingate sprint increased; however, no significant differences were found among Cr+Sb, Cr and Sb groups.
It can be concluded that short-term consumption of Cr-Sb, Cr or Sb brings about a statistically significant increase to the same extent in both anaerobic power in Wingate 10 s-repeated performances and blood lactate level of wrestlers.
Iranian Journal of Nutrition Sciences & Food Technology, Volume:7 Issue: 2, 2012
برخی از خدمات از جمله دانلود متن مقالات تنها به مشترکان مگیران ارایه می‌گردد. شما می‌توانید به یکی از روش‌های زیر مشترک شوید:
اشتراک شخصی
در سایت عضو شوید و هزینه اشتراک یک‌ساله سایت به مبلغ 300,000ريال را پرداخت کنید. همزمان با برقراری دوره اشتراک بسته دانلود 100 مطلب نیز برای شما فعال خواهد شد!
اشتراک سازمانی
به کتابخانه دانشگاه یا محل کار خود پیشنهاد کنید تا اشتراک سازمانی این پایگاه را برای دسترسی همه کاربران به متن مطالب خریداری نمایند!
  • دسترسی به متن مقالات این پایگاه در قالب ارایه خدمات کتابخانه دیجیتال و با دریافت حق عضویت صورت می‌گیرد و مگیران بهایی برای هر مقاله تعیین نکرده و وجهی بابت آن دریافت نمی‌کند.
  • حق عضویت دریافتی صرف حمایت از نشریات عضو و نگهداری، تکمیل و توسعه مگیران می‌شود.
  • پرداخت حق اشتراک و دانلود مقالات اجازه بازنشر آن در سایر رسانه‌های چاپی و دیجیتال را به کاربر نمی‌دهد.