The Effect of One Session of the Exhaustive Exercise & Caffeine Consumption on Muscle Fatigue Levels & Anaerobic Power of the Professional Female Karatekas

Background: The results of some research studies have revealed the positive effect of the caffeine consumption on the muscle fatigue and anaerobic power of the athletes. According to these findings, the purpose of the present research study is investigating the effect of one session of exhaustive exercise and caffeine consumption on muscle fatigue levels and anaerobic power of the professional female karatekas. Materials and Methods: In this experimental study, ۳۰ professional female karatekas who had at least been present in the Karate national team selected camp once, were chosen based on the entrance criteria and the purposive sampling. The samples were randomly divided into three homogeneous groups consisting of ۱۰ individuals (two groups receiving the ۶ and ۹ milligrams of caffeine supplement for each kilogram of body weight) and the placebo (۶ milligrams of dextrose for each kilogram of body weight). The blood samples were taken prior to and after the anaerobic exhaustive test of Cunningham and Faulkner. The data were analyzed using analysis of covariance (ANCOVA). Results: The results of the study revealed that there was a significant difference between the control and ۹-miligram caffeine groups in all variables (P۰.۰۰۵). Finally, the results of the study demonstrated that there was a significant difference resulting from the effect of ۶ and ۹-milligrams caffeine amounts on the levels of lactate, lactate dehydrogenase, creatine kinase, peak, average, anaerobic power and fatigue of the professional female karatekas (P۰.۰۰۵), though, there was no significant difference among the lactic acid, PH and the anaerobic power drop (P×۰.۰۰۵). Conclusion: According to the results of the study, it is recommended that female karatekas use the ۹-miligram dosage caffeine supplement for reducing the levels of muscle fatigue and increasing the anaerobic power and blood PH.

کلیدواژه ها:

Exhaustive Exercise ، Caffeine ، Muscle Fatigue ، Anaerobic Power ، Professional Female Karatekas