Abstract
Muscle fatigue often occurs when a person performs a maximal activity. However, some substances are believed to be able to improve exercise performance and control energy due to muscle fatigue called ergogenic substances. Ergogenic substances that are not included in the doping category are theobromine and caffeine. Unfortunately, there are very few exercise studies examining theobromine and caffeine, so further testing to prove their benefits is still needed. Therefore, this study aims to determine the effect of the administration of ergogenic theobromine and caffeine after the maximum activity so that a decrease in lactic acid levels can be found. This research is an experimental study with laboratory testing and is carried out based on a random control posttest approach. Sampling was done by using the total sampling technique. The research sample was 18 male Wistar rats aged 2-3 months with a weight of 150-250 grams. Samples were divided into 3 groups consisting of the control group, theobromine group, and the caffeine group. The instrument for taking blood samples is accutrend plus. The data obtained were analyzed using descriptive analysis. The hypothesis was tested using One Way Anova with the help of SPSS 16. The tests carried out found that the average values of the control group, theobromine, and caffeine were 5.2, 4.9, and 4.2, respectively. The results of the hypothesis test showed that the significance value obtained was 0.35 > 0.05 which indicated that the hypothesis was rejected. In conclusion, the administration of ergogenic theobromine and caffeine did not give a significant difference in reducing lactic acid levels. This invention can thus be used as a reference for athletes not to use these substances to reduce fatigue and increase energy.
Highlights
Physical activity is described as the movement of the body so that energy is produced
The values in the theobromine and caffeine groups were 4.9 mmol and 4.2 mmol, respectively. Based on these average values, it was concluded that the caffeine group had lower levels of lactic acid than the theobromine and control groups
In the hypothesis test related to the comparison of lactic acid levels after maximal physical activity for 7 days in the control group, the theobromine group and the caffeine group produced a significance value of 0.034 or greater than 0.05
Summary
Physical activity is described as the movement of the body so that energy is produced. Effects of Theobromine and Caffeine on Muscle Fatigue Levels after Maximum Physical Activity (Experiment on Male Wistar Rats) glycogen and blood glucose. This system produces 2-3 ATP from carbohydrates with a byproduct of lactic acid [5][6]. Fatigue is the inability of muscles to maintain and maintain strength to produce energy expenditure. Fatigue in this case is associated with decreased glycogen reserves caused by the intensity and duration of physical activity [8][9][10][6]. Consume ergogenic substances or substances to increase productivity and control energy [9] One of the ergogenic substances that can be used is caffeine and theobromine [12]
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