Sleeping Late at Night: Does it Affect the Performance of Futsal Athletes?

Adequate sleep is crucial for optimal physiological and physical performance in athletes. This study aims to examine the effects of late-night sleep on cardiovascular responses and fitness levels among futsal athletes at the Muhammadiyah University of Jember. Using a pre-experimental design, ten athletes from the university’s futsal unit were purposively selected as participants. Measurements of systolic and diastolic blood pressure, heart rate, and cardiorespiratory endurance (VO₂Max) were conducted before and after a three-day period of restricted sleep. Data were analyzed using the Wilcoxon and paired t-tests. The findings revealed significant increases in systolic and diastolic blood pressure as well as heart rate after the sleep deprivation period, accompanied by a significant decrease in VO₂Max scores (p = 0.021). These results indicate that late-night sleep negatively affects athletes’ fitness by elevating cardiovascular strain and reducing aerobic capacity. The study emphasizes the importance of maintaining proper sleep hygiene as an essential recovery component in athletic training programs to sustain endurance, optimize performance, and prevent fatigue-related declines

Perceptions of Grade 12 Students Regarding Physical Literacy

This study aims to investigate the perceptions of 12th-grade students regarding physical literacy, a multidimensional construct that includes motivation, self-confidence, physical competence, and the knowledge required for lifelong engagement in physical activity. Physical literacy plays a crucial role in promoting active and healthy lifestyles, especially during adolescence—a critical period for developing lifelong health behaviors. Employing a quantitative descriptive design, this study involved 83 students from SMA Negeri Kalisat, Jember, who completed the Indonesian-adapted version of the Perceived Physical Literacy Instrument (PPLI). The instrument consists of 9 Likert-scale items assessing various components of physical literacy. Results revealed that 41.5% of students strongly agreed and 29.7% agreed with the physical literacy indicators, suggesting a generally positive perception. However, a significant number of students expressed uncertainty or disagreement on certain items, particularly related to social skills and self-management. These findings underline the importance of integrating physical literacy into school curricula and physical education programs. Strengthening students’ understanding and awareness of physical literacy can enhance their readiness to engage in lifelong physical activity, improve physical and mental health, and support national efforts toward youth health development

THE RELATIONSHIP BETWEEN SHOOTING PRACTICE AND GOALS IN FOOTBALL GAMES

Shooting is kicking the ball with one part of the foot which requires accuracy, speed and strength so that you can score a goal. This research aims to analyze the relationship between shooting practice and the occurrence of goals in football games. The research design used is correlational. The population is 15 teenagers aged 16-19 years in the Akrab Pakusari club. The instrument uses a goal measurement test with 0.745. Analysis using the help of the Microsoft Excel program and the SPSS 21 for Windows program. The results of the research show a significant relationship between shooting practice and the occurrence of goals in football games at the Akrab Pakusari club with a correlation value of 0.525

ANALYSIS OF THE INDONESIAN NATIONAL TEAM'S DEFENSIVE STYLE AT THE AFC ASIAN CUP QATAR 2023

The purpose of this research is to find out the defensive style of the Indonesian national team in the AFC Asian Cup Qatar 2023 and provide coaches for recommending a defense system that suits their team. This research method uses quantitative research with a descriptive approach. The population was taken by observing all videos of the Indonesian national team's matches at the 2023 AFC Asian Cup Qatar. Based on the research, it can be concluded that the defense of the Indonesian national team is divided into three categories as follows; Through high pressing, a success percentage of 79.7% and failure of 20.3% were obtained, through middle pressing, a success percentage of 78.7% and failure of 21.3% were  obtained, and low pressing  was obtained a success percentage of 69.7% and failure reached 30.3%. The Indonesian national team in the AFC Asian Cup Qatar 2023 showed that high pressing is the most effective strategy for the defense system

LITERACY AND NUMERATION INTEGRATED IN PHYSICAL EDUCATION LEARNING THROUGH THE PROGRAM EDU-FUN-HEALTH

Numeracy literacy is very important as a basic competency for students to prepare them to face challenges in real life. This study aims to improve students' numeracy literacy through the EDU-FUN-HEALTH program. This type of research is classroom action research with a two-cycle model. The subjects of the study were 16 fifth grade students at Padomasan 03 Elementary School, Padomasan District, Jember Regency. The research instruments included observation, skill tests, and knowledge tests. Data were analyzed using percentages, with the achievement level set at 75%. The results showed that the use of game modifications succeeded in improving student learning outcomes in manipulative motor skills. The percentage of learning completion increased from 62.5% in cycle 1 to 87.5% in cycle 2. In addition, there was also an increase in numeracy literacy, which changed from the Good category to Very Good between cycle 1 and cycle 2. Regency

APPLICATION OF THE ANALYTIC HIERARCHY PROCESS IN IDENTIFYING TALENT OF KARATE ATHLETES AGED 6-12 YEARS

Talent identification in young karate athletes is a crucial phase for optimizing targeted achievement development programs. This study aims to apply the Analytic Hierarchy Process (AHP) method to establish a priority hierarchy of criteria and sub-criteria in talent development for karate athletes aged 6–12 in West Java Province. This study involved 22 karate experts, consisting of coaches and accomplished athletes, to assess the weighting of three main criteria:antropometer,biomotor, andsomatotype, which were further broken down into 14 sub-criteria. Quantitative data analysis was performed using Expert Choice 11 software. The results of the analysis show that in the domainantropometer, height (0.173) is the indicator with the highest priority. In the biomotor domain, agility (0.225) shows the highest weight value compared to strength, endurance, speed, and flexibility. Meanwhile, in the domainsomatotype, body typologymesomorf(0.418) ranks as the top priority, followed by endomorph (0.379) and ectomorph (0.202). Comprehensively, the criteriasomatotype(34%) made the most significant contribution to the overall talent identification model, followed by biomotor andantropometer.These findings affirm the AHP's capability in developing a systematic and objective talent identification model, which can serve as a strategic guideline for coaches in the selection and development process of potential karate athletes from an early age

KNOWLEDGE LEVEL OF UNDERWEAR PASSING IN VOLLEYBALL OF GRADE VII STUDENTS OF SMP NEGERI 1 SIAK HULU KAMPAR DISTRICT

This study aims to determine the level of knowledge of volleyball underhand passing of class VII students of SMP Negeri 1 Siak Hulu, Kampar Regency. This type of research is quantitative description with survey planning method and data collection technique using multiple choice test instrument. The subjects in this study were 360 class VII students of SMP Negeri 1 Siak Hulu, Kampar Regency. The sample was taken using purposive sampling technique , so the number of samples in this study was 69 people. The instrument used was a multiple choice test instrument totaling 10 items. The data analysis technique used descriptive analysis which was stated in percentage . Based on the results of data analysis and discussion, it can be concluded that the level of knowledge of volleyball underhand passing of class VII students of SMPN 1 Siak Hulu, Siak Hulu District, Kampar Regency is in the "Very Low" category of 2.90% (2 students), "Low" 28.99% (20 students), "Medium" 49.28% (34 students), "High" 18.84 (13 students), "Very High" 0 (0). Based on the average, 33.92 levels of knowledge of volleyball underhand passing of class VII students of SMPN 1 Siak Hulu, Siak Hulu District, Kampar Regency are in the "Medium" category

ETHNOGRAPHIC STUDY OF ARM STRENGTH TRAINING PRACTICES IN THE PENCAK SILAT COMMUNITY CASE STUDY AT TAPAK SUCI MARTIAL ARTS SCHOOL

This study aims to explore arm strength training practices within the Pencak Silat community, focusing on Tapak Suci Martial Arts School at Universitas Muhammadiyah Jember. This research employs a qualitative descriptive method with an ethnographic approach, allowing an in-depth exploration of training techniques, routines, and practitioner experiences.  The findings reveal that Tapak Suci's traditional training methods—such as bodyweight exercises, striking hard objects, and lifting natural weights—are still widely practiced and play a crucial role in building endurance and mental resilience. However, these methods lack structured progression and explosive power development, which are essential for modern competitive fighting. The study also finds that modern training techniques, including resistance band exercises, weightlifting, and plyometric drills, offer scientifically-backed advantages in muscle strength enhancement. The integration of both traditional and modern methods can create a more effective and well-rounded training program, optimizing fighter performance while preserving Pencak Silat’s cultural identity. In conclusion, while traditional training methods remain fundamental, their integration with modern sports science techniques provides greater efficiency, strength gains, and injury prevention. Future research should explore long-term impacts of combined training approaches and assess how practitioners culturally adapt to modern techniques while maintaining the essence of traditional martial arts training

PERCEPTION OF PHYSICAL EDUCATION STUDENTS ON THE INFRASTRUCTURE OF BIG BALL SPORTS

The purpose of this study was to determine the perception of physical education students of the University of muhammadiyah jember class of 2021 on the feasibility of infrastructure for large ball sports, namely football, volleyball and basketball. The research method used is a quantitative descriptive method, the population in this study is all physical education students of the 2021 batch, the sample taken using a total sampling of 21 students. With data collection techniques using kuesioner closed through google form. The questions in kuesioner cover the facilities and infrastructure of big ball sports (football, volleyball, and basketball). The data obtained will be analyzed using descriptive statistical methods in which data analysis includes calculating the frequency, average, and percentage. Based on research that has been conducted 81,55% of respondents considered that the facilities and infrastructure in the Football course in the category of decent, 76,49% of respondents considered that the facilities and infrastructure in the volleyball course in the category of decent, and 77,08% of respondents considered that the facilities and infrastructure in the basketball course in the category decent

THE EFFECT OF CONCENTRATION TRAINING AND IMAGERY TRAINING ON SELF-CONFIDENCE IN DOLLY CHAGI KICKS IN TAEKWONDO ATHLETES

The dollyo chagi kick is one of the kicking techniques in taekwondo that is performed by lifting the leg and kicking forward, sideways, upward, downward, and backward to score points. The purpose of this study was to determine the effect of concentration training and imagery training on the self-confidence of Gema Cita Perkasa taekwondo athletes in performing the dollyo chagi kick. This study employs a quantitative descriptive research design using an experimental method with a two-group pre-test and post-test design. The sample selection in this study uses purposive sampling technique, with group division using ordinal pairing technique. The sample in this study consisted of 16 athletes. The instruments used in this study were questionnaires and interviews. The data analysis methods used were normality, homogeneity, reliability, and hypothesis testing with a significance level of α 0.05. Based on the results of the hypothesis test analysis, a significance value (sig. 2-tailed) of 0.650 was obtained, which is greater than 0.05, indicating that there is no effect of concentration training on self-confidence in dollyo chagi kicks among Gema Cita Perkasa taekwondo athletes. Furthermore, the hypothesis test yielded a significance value (sig. 2-tailed) of 0.652, which is greater than 0.05, indicating that there is no significant effect of imagery training on self-confidence in the dollyo chagi kick of Gema Cita Perkasa taekwondo athletes. Furthermore, the hypothesis test results yielded a significance value (sig.2-tailed) of 0.975, which is greater than 0.05, indicating that ‘there is no significant effect between concentration training and imagery training on self-confidence in the dollyo chagi kick of Gema Cita Perkasa taekwondo athletes