Background: Futsal and soccer are sports that require endurance and good physical fitness. However, the striking difference, especially in terms of the field used, causes various assumptions. Objectives: The purpose of this study is to compare the levels of physical fitness required for futsal and soccer as extracurricular activities. Methods: The Indonesian Physical Fitness Test (TKJI), In this study, a survey administered to extracurricular football and futsal players aged 13 to 15 was used as a quantitative method. Male students from two separate schools who were involved in extracurricular activities participated in this study, including soccer at State Junior High School 3 Sukadana, and futsal at Madrasah Tsanawiyah State 1 Pontianak. Applying a purposive sampling strategy to collect the sample, 20 futsal extracurricular students and 20 soccer extracurricular students were obtained. The SPSS version 26 program was used to aid in the data analysis for this investigation. Results: According to the study's findings, the average physical fitness score for soccer extracurricular was 15.1, while the average for futsal extracurricular was 11.75. Additionally, the significance value is 0.000 0.05, demonstrating a significant distinction between football and futsal as extracurricular activities. Conclusion: The study on the degree of physical fitness in extracurricular futsal and football found that there is a big gap. These preliminary results might improve understanding of student fitness developments among exercise professionals.

The support for recording achievements in sports achievements, two of which are the ability to enter oxygen (O2) into the lungs and further the ability to take up this oxygen so that it can be utilized in the process of providing energy. The second function of O2 is to transport carbon dioxide (CO2) through respiration. These two processes are carried out simultaneously at least between the respiratory cycle and its close relationship with hemoglobin. Hemoglobin is part of the blood which has a function to bind O2 and CO2 at the end in the process of respiration. The purpose of this study was to determine evidence of a relationship between HB and VO2max. This research is a descriptive correlational study. Samples are sports athletes who are preparing for Pre PAPUA. The number of samples was 83 athletes in the game group consisting of sand volleyball (6), badminton (17), Petanque (12), table tennis (13), and Futsal (35). Measurement of VO2max was done by using the Bleep test and HB with the Hb test. Based on Kendall's tau non-parametric analysis, it is found that HB and VO2max are sufficiently correlated, so it is not certain that the higher the HB the higher the VO2max, although in the process of supplying energy these two variables are mutually supportive and relate.

This study aims to determine the level of endurance of players in different positions in soccer games. The research method used in this study is a survey method with testing and measurement techniques. The population in this study is the SSB Macan Tutul players in 2021, as many as 22 players, using total sampling by making the population a sample. The results of the study are calculated based on the player's position and criteria in the SSB Macan Tutul group in 2021. The results of the study based on the position of the players showed that the goalkeeper position got an average score of 41, the defender 42.7, the midfielder 44, and the attacker 42.3, and none of them met the VO2max standard. Based on the criteria for the 2021 SSB Macan Tutul group, it shows that in the very good category (4.5%) or as many as 1 person, good (27.3%) or as many as 6 people, moderate (40.9%) or as many as 9 people, bad (27.3%) or as many as 6 people, and very bad (0%) or not at all. The player who has the highest VO2max is the midfield player, with a value of 48.8 ml/kg/min. The player with the lowest VO2max is the goalkeeper, with a value of 40.8 ml/kg/min, compared to an average player’s VO2max of 43 ml/kg/min. Keywords: Endurance Level, Player Position, VO2max

Background and Study Aim. Motor skills are a very important ability for every student to have because they can affect their full development. However, the growth and development of elementary school-age children is likely to be influenced by environmental factors such as family, social environment, school environment. This study aims to determine differences in gross motor skills in elementary school students in lower grades in hilly and coastal areas. Material and Methods. This research includes quantitative research with a cross sectional study approach. In this study were given tests and measurements to measure gross motor skills in elementary school students using the Gross Motor Development-2 Test (TGMD-2): running tests, gallops, hops, horizontal jumps, leaps, slides, striking a stationary ball, stationary dribble, catch, kick, overhand throw, and underhand roll. The subjects in this study were male students in the lower grades of SD Negeri 38 Nanga Tayap in the hilly area and SD Negeri 27 Sungai Kakap in the coastal area. The purposive sampling technique resulted in a sample of 45 samples consisting of 21 students from hilly areas and 24 students from coastal areas. Data analysis in this study was assisted by the SPSS Version 26 application. Results. Based on these results, it can be concluded that there are significant differences in gross motor skills between students  in hilly areas and coastal areas. The results also show that the gross motor skills of  students in hilly areas are classified as low. These results tend to be in the Poor category. Compared to the gross motor skills of students in coastal areas which show a Very Superior dominance. Conclusions. The results of the study proved that the gross motor skills of students in hilly and coastal areas had significant differences. These findings have provided additional references regarding gross motor skills of students. This can be used as material for evaluation by teachers and sports practitioners in designing suitable programs to stimulate gross motor skills in elementary school students.

Background: Childhood is the period of rapid growth and development. Various aspects can affect problems in growth and development such as genetics, natural environment, and social economic status of the family, nutrition status, social and cultural environment. Inappropriate food intake can cause malnutrition in children, both undernourishment and over nourishment (obesity). Obesity is not good for the process of child growth and development because it distorts the process of metabolism and bring risks for cardiovascular diseases.Objective: To identify gross motor ability of obese elementary school students at Yogyakarta Municipality and evaluate motor ability of elementary school students based on degree of obesity.Method: The study was observational with cross sectional design. Subject of the study were 158 obese elementary school students at Yogyakarta Municipality. Subjects were screened and tested using fat caliper and their height and weight were measured. If they belonged to obese their gross motor ability was tested comprising throwing with target, flexibility long jump standing, squatting, push up, balance and speed running. Data were analyzed using Spearman correlation at CI95% (p<0.05).Result: Gross motor ability of children has negative correlation with obesity (r = -0,465), so children with heavy obesity rho have the bad gross motor ability. However there was no relationship between ability of flexibility, standing long jump, balance, and speed running the mobility (sig > 0,05).Conclusion: Child which progressively obesity will have a lower gross motor ability.