Acute Co-Ingestion of Caffeine and Sodium Bicarbonate on Performance the and biochemical indices of fatigue in male cross-fitters
محورهای موضوعی : تغذیه ورزشی
مهدی رضاقلی زاده
1
,
Reza Behdari
2
1 - گروه تربیت بدنی و علوم ورزشی دانشگاه آزاد اسلامی واحد زنجان
2 - Department of Physical Education and Sport Sciences, W T.C., Islamic Azad University, Tehran, Iran.
کلید واژه: sodium bicarbonate, caffeine, CrossFit, fatigue, anaerobic power,
چکیده مقاله :
Introduction: This study is designed to investigate the effects of acute sodium bicarbonate and caffeine administration on anaerobic power levels and biochemical markers of fatigue present in elite male CrossFit athletes' blood before a training session.
Methodology: The research included 20 male athletes skilled in CrossFit who volunteered to participate. They were randomly categorized into four groups: the sodium bicarbonate group (5 participants), the caffeine group (5 participants), the sodium bicarbonate and caffeine combination group (5 participants), and the placebo group (5 participants). The first group ingested 3mg of sodium bicarbonate per kg/BW, whereas the second group ingested 6mg of caffeine per kg/BW. The third group followed the same protocol, ingesting sodium bicarbonate and caffeine, which were provided in gelatin capsules one hour before their rigorous CrossFit workout. The placebo group consumed pills containing cellulose. The Burpee and Thruster movements were among the most arduous workouts. Following the conclusion of these exercise sessions, all participants undertook the RAST assessment. Blood samples were collected from fasting patients before and after these events to document and assess glucose, ammonia, and lactic acid variations. The hypotheses of this study were evaluated using the MANCOVA test with a significance threshold of P≥0.05.
Results: The group that received caffeine and sodium bicarbonate demonstrated significantly higher maximal and average anaerobic power than the placebo group. Nonetheless, the observed difference was minimal when evaluated against the outcomes of the caffeine or sodium bicarbonate groups administered individually. Conversely, the tiredness index variable in the same combination group was significantly lower than that of the caffeine or sodium bicarbonate groups. Nevertheless, this disparity was negligible in comparison to the placebo group. Compared to the placebo group, the simultaneous consumption of caffeine and sodium bicarbonate resulted in a significant decrease in lactic acid and ammonia levels in blood samples collected post-training. No statistically significant changes in glucose levels were seen across the groups (P<0.05).
Conclusion: The findings indicate that the combined ergogenic effects of caffeine and sodium bicarbonate can enhance anaerobic performance while mitigating fatigue and its associated biochemical markers through simultaneous consumption.
Keywords: caffeine, sodium bicarbonate, anaerobic power , fatigue, CrossFit
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