This study aims to analyze the acute effect of omega 3 supplementation on serum TNF-α levels, pain intensity, and muscle strength after high-intensity weight training. A total of 20 adult males with a BMI of 18.00-24.99 were enrolled in this study. Subjects were divided into 2 groups, namely (K1) with placebo and (K2) with omega 3 supplementation with a dose of 1000 mg (540 mg EPA and 360 mg DHA). The intervention was carried out 24 hours after high-intensity weight training. The data in this study were taken before and after the intervention. Measurement of serum TNF-α levels using a human ELISA kit, measurement of pain intensity using visual analog scale (VAS), measuring muscle strength using a leg dynamometer. The data analysis technique is used if the data is normally distributed, namely Paired t-test and Independent t-test, if the data has not normally distributed the analysis used is the Wilcoxon signed-rank test. Omega 3 supplementation significantly reduced serum TNF-α levels (p-0.035), significantly reduced pain levels (p-0.007), and did not significantly decrease the strength (p-0.100). Omega 3 supplementations can reduce serum TNF-α levels, pain intensity, and omega 3 supplementations can maintain muscle strength after high-intensity weight training as evidenced by the absence of a significant decrease in muscle strength after high-intensity weight training.

Football requires good physical condition in playing and competing. There are four phases in football training, namely physical, technical, tactical and mental. This study discusses the physical conditions required in the sport of football and was analyzed using the review method against references published online, related to physical conditions. In this research, it shows that the physical components in football are very influential in the game. Limited this study does not analyze matches. Research related to physical components has been widely used such as strength, flexibility, speed, endurance and anthopometric conditions, namely arm length, leg length.

Athletes certainly need better nutrition than ordinary people. These nutritional needs, especially for adolescent athletes, are very important as a supplement to produce performance, energy, growth, and in the recovery process. The purpose of this article is to explain the components or aspects that must be considered in meeting the nutritional needs of adolescent athletes. This study followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) and the Meta-analysis. There are scientific articles obtained from Elsevier, Pubmed, Science Direct, Web of Science, National Index, Google Scholar, Journal of Sport Nutrition. Some important aspects of meeting nutritional needs for adolescent athletes are as follows: calorie needs, macronutrients hydration, and timing. The analysis structure used in this study is in line with several bibliometric studies conducted on other topics. Research on nutrition in adolescent athletes, research on important aspects of nutrition to meet the needs of adolescent athletes, English and Indonesian articles, full text form, published from 2015 to 2021. Exclusion criteria, abstract only, unpublished articles in scientific journals. All aspects of fulfilling nutrition for adolescent athletes are very important to support performance and quality, especially for adolescent athletes.

Speed ​​and power are the most important physical components in badminton with the current rally point system. The purpose of this study was to determine the effect of badminton shadow training on power and speed. This research used experimental research with randomized group pre-test and post-test design. The subjects of this study were male students IKOR unesa 2018 class which were randomly divided into experimental group 1 (K1) and experimental group 2 (K2) consisting of 10 people per group. K1 group was given badminton shadow training with 1: 1 interval training method and K2 group with 1: ½ interval training method with 15 seconds training time. The power test is performed using jump MD and the speed test is carried out with a 30 Meter sprint test. Paired t test results were significant (p <0.05) on power (p = 0.035) and speed (p = 0.006) at K1, whereas at K2 were also significant at power (p = 0,000) and speed (p = 0.014). Independent sample t test results were not significant at the power (p = 0.190), while the speed was also not significant (p = 0.165). In conclusion, badminton shadow training can increase power and speed with both 1:1 or 1: ½ interval training ratios. Shadow badminton training with 1: ½ interval training is more to increase power and speed because on average the results are better than shadow badminton training with 1:1 interval training.

This study aims to analyze and prove the effect of curcumin on pain intensity and ROM during EIMD. This experimental study used a pre and post-control group design. Research subjects were selected using a purposive sampling technique and then the subjects were divided into 2 groups, namely the group given a placebo and the group was given curcumin at a dose of 400 mg. A total of 24 healthy men aged between 20-30 years participated in this study. On the first day, all subjects took data on the characteristics of research subjects, then warmed up. Then the subjects did the high-intensity physical exercise in the form of squad and leg press exercises with an intensity of 80-90% of maximum ability. The exercise was carried out in 4 sets for each form of exercise and rest between sets for about 1 minute. On the second day, after 24 hours the subject took pre-test data to measure pain intensity and ROM, then the intervention was given based on each group. On the third day, after 24 hours the subject took post-test data to measure pain intensity and ROM. Measurement of pain intensity using the Visual Analytical Scale (VAS) and measurement of ROM performed in the knee joint using a goniometer. After the data was obtained, the data were analyzed using the IBM SPSS version 26 application. The results of this study reported that the group given curcumin during EIMD was able to significantly reduce pain intensity (*p<0.05) compared to the group given a placebo. Furthermore, the group given curcumin during EIMD was able to increase ROM significantly (*p<0.05) compared to the placebo group. We believe that the main cause of muscle soreness is the uncontrolled increase in pro-inflammatory cytokines such as TNF-a and IL-6 during EIMD and then decreased ROM for several days after exercise. Since pain intensity and ROM are needed to support body functions, we highly recommend the use of curcumin, which has many positive benefits for sports enthusiasts to support physical performance. Keywords: Curcumin, Pain Intensity, Range of Motion, Exercise-Induced Muscle Damage, Inflammation