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This study aims to analyze the relationship between caffeine consumption and sleep duration on VO₂Max levels among soccer school (SSB) students in Surabaya. VO₂Max is a key indicator of cardiorespiratory fitness and athletic performance. This research employed a quantitative cross-sectional design with an analytical observational approach. A total of 162 SSB students were included as research participants from several soccer schools in Surabaya. Data were collected using the Food Frequency Questionnaire (FFQ) to assess caffeine intake and the Pittsburgh Sleep Quality Index (PSQI) to evaluate sleep duration, and were analyzed using the Chi-Square test. The results revealed a significant relationship between caffeine consumption and sleep duration with VO₂Max (p<0.001). Students with higher caffeine consumption (≥3.5) and adequate sleep duration (≥7 hours) tended to have better VO₂Max values compared to those with lower caffeine intake and insufficient sleep. These findings indicate that appropriate caffeine consumption and adequate sleep duration play an important role in improving cardiorespiratory fitness. Therefore, proper education on healthy lifestyle habits is essential to optimize the performance of young athletes.

Perimenopause is an important phase in a woman's life characterized by extensive hormonal changes as the ovaries gradually lose their function. During this period, the body experiences significant hormonal fluctuations, particularly a decrease in estrogen and progesterone production, which can cause various physical discomforts such as fatigue. One way to overcome fatigue is through low-impact exercise. This exercise is a light, safe activity that can improve physical fitness and enhance the body's endurance, thereby potentially reducing fatigue levels in perimenopausal women. This study used a descriptive method with a case study approach conducted on two perimenopausal women, Mrs. T and Mrs. N. The results of the nursing care showed that after six sessions of low-impact exercise over two weeks, the fatigue levels of both respondents decreased, as evidenced by their Fatigue Assessment Scale (FAS) scores. Mrs. S's FAS score decreased from 28 to 23, while Mrs. N's decreased from 30 to 27. The symptoms experienced by Mrs. T decreased on the third day and further decreased on the sixth day. For Mrs. N, symptoms decreased on the third day and further decreased on the fifth day. The results of this study indicate that low-impact exercise is effective as an intervention for fatigue issues in perimenopausal women.

This study examines the effects of word of mouth, peer influence, and promotion on exercise decisions at gymnasiums in Bandar Lampung City, with hedonic motivation as a mediating variable. Drawing on the Theory of Planned Behavior and consumer behavior perspectives, the research employed a quantitative causal-associative design. Data were collected through structured questionnaires from 100 active members of four gymnasiums and analyzed using Partial Least Squares - Structural Equation Modeling (PLS-SEM) with SmartPLS . The results indicate that word of mouth, peer influence, and promotion have positive and significant effects on hedonic motivation and on exercise decisions. Hedonic motivation also exerts a positive and significant effect on exercise decisions, suggesting that pleasurable and emotionally rewarding fitness experiences reinforce consumers' intention to engage in regular gym- based exercise. Mediation analysis further reveals that hedonic motivation significantly channels the effects of peer influence and promotion on exercise decisions, while the indirect effect of word of mouth is also significant, although its negative coefficient warrants careful interpretation. These findings demonstrate that exercise decisions are shaped not only by utilitarian health considerations but also by social influence, promotional exposure, and affective consumption experiences. The study provides practical insights for gym managers in designing service and marketing strategies that strengthen customer engagement and sustained participation.

Exercise is a planned physical activity that not only contributes to physical fitness but also plays a significant role in maintaining and improving mental health. This study aims to explore the relationship between physical exercise and mental well-being among adolescents and university students with diverse backgrounds of physical activity. The research employs a qualitative approach using in-depth interviews with five informants, consisting of university students who engage in recreational exercise, recreational runners, middle- and long-distance runners, and a sprinter. Data collection was conducted in several public sports spaces in the city of Bandung, focusing on participants’ subjective experiences related to their psychological conditions before and after engaging in exercise. The findings indicate that all participants perceive exercise as an effective means of emotional regulation. Physical activity is consistently associated with improved mood, reduced stress, enhanced sleep quality, stable energy levels, and increased academic concentration and focus. In addition, exercise contributes to the development of self-confidence, self-efficacy, and self-control through structured routines. The social aspects of exercise, such as support from peers, communities, and coaches, were shown to strengthen the sustainability of physical activity while also providing essential emotional support for mental health. However, among competitive athletes, performance-related pressure was identified as a factor that may negatively affect psychological well-being, although this effect can be moderated by adequate social support. Overall, the findings of this study emphasize that exercise functions as an adaptive coping mechanism operating through biological, psychological, and social pathways, and highlight the importance of consistency and balance in physical activity to achieve optimal mental health benefits.  

Pregnancy is a crucial period that requires intensive maternal health monitoring. Prenatal exercise is a non-medical intervention that is beneficial for improving physical fitness, reducing pregnancy complaints, and preparing mothers for childbirth. This study aims to determine whether there is a relationship between the knowledge and attitudes of pregnant women and the implementation of prenatal exercise at the Dolik Community Health Center. This study design was quantitative descriptive analytic with a cross-sectional approach. The sample consisted of 28 pregnant women selected using purposive sampling. Data were collected through a structured questionnaire regarding knowledge, attitudes, and implementation of prenatal exercise, then analyzed using the Chi-Square test. The results showed that the majority of pregnant women had good knowledge (60.7 %) and a positive attitude towards prenatal exercise (64.3%). Bivariate analysis showed a significant relationship between knowledge and implementation of prenatal exercise (p = 0.021) and between attitude and implementation of prenatal exercise (p = 0.034). Mothers with good knowledge and positive attitudes were more likely to regularly participate in prenatal exercise. This study shows a relationship between knowledge and attitudes and implementation of prenatal exercise, so increasing education and fostering positive attitudes are important strategies to encourage participation of pregnant women.

Elderly exercise is a sporting activity that can help improve heart health, maintain stable blood pressure and blood sugar levels, and prevent various degenerative diseases in the elderly. Abnormal blood sugar levels can cause metabolic disorders that lead to various serious health problems. This study aims to determine the impact of elderly exercise on improving the health and independence of older adults in carrying out daily activities. This study used an evaluative method with a cross-sectional approach at the Nibong Community Health Center, North Aceh, involving 38 elderly people (14 men and 24 women) as a sample. The results showed that after participating in regular exercise, the number of elderly people with high blood sugar levels decreased to 31.6%, while the number of elderly people with normal blood sugar levels increased to 86.6%. Statistical tests showed a significant difference between blood sugar levels before and after exercise (p < 0.05). From these results, it can be concluded that elderly exercise is effective in lowering blood sugar levels, increasing insulin sensitivity, improving fitness and balance, and motivating elderly people to maintain their health. It is recommended that the Nibong Community Health Center regularly hold structured elderly exercise programs and provide educational counseling on the importance of a healthy lifestyle and controlling sugar intake. The results of this study can serve as a reference for health institutions and further research

The fitness industry has shown rapid growth as public awareness of the importance of healthy lifestyles increases in today's world. Gyms no longer function solely as a place to exercise, but also offer value and a sustainable experience for their members. The ability to manage a gym and retain members in this increasingly competitive era encourages gym owners to be more sensitive to factors that could potentially affect member satisfaction and loyalty. To improve the quality of the gym, it is necessary to evaluate the price and quality offered in the form of well-maintained and complete facilities. The suitability of the price to the benefits felt by members will make them more loyal to training at the gym. Likewise, comfortable facilities can increase member loyalty, which in turn drives member satisfaction, especially at Velcro Gym.

Physical fitness is a fundamental determinant of athletic performance and is strongly influenced by dietary intake and lifestyle behaviors. Adequate protein consumption is essential for muscle development and energy metabolism, whereas smoking has detrimental effects on lung function and aerobic capacity. This study aimed to explore the relationship between protein intake and smoking habits with physical fitness, measured by maximal oxygen uptake, among athletes of Persela Football Academy under-eighteen. A quantitative approach with a cross-sectional design was applied, involving adolescent male athletes. Protein intake was assessed using a semi-quantitative food frequency questionnaire, smoking habits were obtained through structured interviews, and maximal oxygen uptake was measured using the multistage fitness test. Findings revealed that the average daily protein intake of athletes was relatively high, while the mean maximal oxygen uptake score fell within the good category. Correlation analysis demonstrated a significant association between protein intake and aerobic fitness, as well as between smoking habits and aerobic fitness. The results indicate that lower protein intake and higher smoking frequency are linked to reduced physical fitness capacity. This study highlights the importance of nutritional interventions and healthy lifestyle promotion as integral components in the development of youth athletes to optimize performance and prevent decline in fitness.

The selection of a thesis topic that aligns with students’ interests and competencies often poses a challenge in academic environments. Inappropriate topic selection can lead to decreased motivation and delays in completing the final project. This study aims to develop a thesis topic recommendation system based on a genetic algorithm that considers students’ interests and academic abilities. The data used include grades from core courses, results of research interest questionnaires, and a list of thesis topics provided by academic supervisors. Each topic is represented as a chromosome, while the fitness function is calculated based on the level of compatibility between student attributes and topics. The selection process employs the roulette wheel method, with single-point crossover and random mutation to generate an optimal solution population. The test results show that the recommendation system based on the genetic algorithm achieves an accuracy rate of 86.7%, higher than the keyword-matching method, which only reaches 71.2%. Therefore, this approach is proven effective in assisting students to determine thesis topics that are suitable, objective, and efficient.

Fitness center is a business or service center that provides sports services and sports facilities for its customers. The level of member satisfaction can be seen from the quality of service provided. With the professionalism provided by personal trainers, members will have their own interest in the services and ethics that personal trainers do. This study aims to determine the level of member satisfaction with the professionalism provided by personal trainers at ATLAS CLUB SPORT Surabaya. This type of research is presented using a descriptive quantitative research method with a survey approach, where the questionnaire instrument is used as support for data collection. This study uses the Servqual method to measure the level of professionalism provided by personal trainers to members. This method includes several aspects, namely tangibles, reliability, responsiveness, assurance, and empathy which are used to measure the professionalism of personal trainers. The study population was members who used personal trainer services totaling 100 people, and a sample of 25 people taken using the purposive sampling method. The results of this study indicate that the tangible aspect and the responsiveness aspect received the highest scores, namely 88% and 87%. Meanwhile, the aspects of reliability, assurance, and empathy each received a score of 86%. With the results obtained, it shows that the personal trainer of ATLAS SPORT CLUB Surabaya has provided professional quality, very satisfying service and also understands what members need.

In human life, sports play a very important role as they can influence both physical and psychological conditions. Through regular physical activity, individuals not only achieve physical fitness but also maintain mental and emotional balance. One type of exercise that is interesting to study is slow running, which involves running at a steady but gentle pace. This study focuses on examining the effectiveness of group slow running on levels of happiness. The subjects of this research were students from the Psychology Department at Universitas Negeri Padang, class of 2021, aged between 18 and 21 years old. The study employed a quantitative method with an experimental approach using a pretest-posttest control group design. Two groups were involved in this research—an experimental group and a control group—each receiving different treatments. Measurements were conducted before and after the intervention to observe changes in happiness levels. The results of the independent sample t-test analysis showed a significance value of 0.003, which is smaller than α = 0.05. This indicates a significant difference between the two groups. Therefore, it can be concluded that group slow running is effective in increasing happiness among adolescents, particularly university students, as it fosters feelings of relaxation, enthusiasm, and togetherness.

Prenatal exercise plays a vital role in maintaining the physical and mental well-being of pregnant women. This activity helps reduce common discomforts such as back pain, enhances stamina, and strengthens pelvic muscles in preparation for childbirth. However, knowledge among pregnant women regarding safe and effective exercises remains limited. The lack of structured information often leads to uncertainty and discourages participation in physical activities during pregnancy. This condition highlights the need for well-directed and comprehensive physiotherapy education. This community service program was conducted in Building B of the Kedungkandang Community Health Center and involved 15 participants. A holistic approach was employed, combining interactive counseling to convey the theoretical benefits and safety of exercise, group discussions to share experiences, and practical demonstrations. The exercises demonstrated were carefully selected to be simple, safe, and easy to perform independently at home, ensuring continuity beyond the educational sessions. The results indicated a significant improvement in participants’ knowledge, as evidenced by the comparison between pre-test and post-test scores. This improvement reflects the growing awareness among pregnant women of the importance of maintaining fitness through structured and safe physical activity. Continuous education through a community physiotherapy approach is necessary to ensure consistent implementation of prenatal exercise and to support long-term behavioral changes toward better maternal health.

Background: Regular physical activity has a significant impact on improving the quality of health in all age groups. One of the main factors causing the increasing prevalence of Non-Communicable Diseases (NCDs) such as diabetes, heart disease, and obesity is lack of physical activity. Data from various studies show that increasing physical activity and fitness levels can reduce the relative risk of death by 20% to 35%. This condition shows that physical activity is not only important for maintaining fitness, but also has a vital role in preventing premature death caused by chronic diseases. Objective: This study aims to systematically examine the benefits of physical activity on health and fitness through a systematic review of 13 relevant scientific articles. Results: The findings show that regular physical activity can improve and maintain muscle and bone health, reduce the risk of chronic diseases such as diabetes, heart disease, and obesity, and reduce symptoms of mental disorders such as depression and schizophrenia. In addition, physical activity also plays a role in improving psychological well-being. Conclusion: Consistent physical activity contributes to the primary and secondary prevention of various chronic diseases, reduces the risk of premature death, maintains a balanced body composition, and supports optimal organ function. This results in a healthier, fitter body, and individuals being more productive in their daily activities.  

This research aims to analyze the role of morning exercise activities on the health and physical fitness of fifth-grade students at SD Negeri 48 Pagar alam. Morning exercise as a routine physical activity in the school environment potentially provides significant benefits to the physical development and health of elementary school-aged children. The research method used is descriptive qualitative with an observational approach. The research subjects were 28 fifth-grade students of SD Negeri 48 Pagar alam, located in Rimba Candi Village, Candi Jaya Sub-district, Dempo Tengah District. Data collection was carried out through participatory observation, structured interviews with teachers and students, and physical fitness measurements using the Indonesian Physical Fitness Test (TKJI) for children aged 10-12 years. The results showed a significant improvement in components of students' physical fitness including cardiorespiratory endurance, muscle strength, flexibility, and balance after the implementation of routine morning exercise programs for one semester. Additionally, it was identified that morning exercise activities contributed to increased learning concentration, discipline, and school enthusiasm. Several factors supporting the success of this program include support from the school, availability of adequate facilities, and active participation of teachers as role models. Meanwhile, inhibiting factors include unpredictable weather conditions, student tardiness, and limited variation in exercise movements. This research concludes that morning exercise plays a strategic role in improving the health and physical fitness of fifth-grade students at SD Negeri 48 Pagaralam, thus it is recommended to be established as a sustainable program with the development of movement variations and provision of competent instructors.

Athletic physical condition is a key factor in determining an athlete's performance during competitions. This study aims to assess the physical condition of Unesa Women FC athletes using a descriptive quantitative method, involving 20 athletes as the sample. Data was collected through a series of physical tests to measure various aspects of physical fitness, including aerobic endurance, speed, agility, leg strength, and explosive power. The tests conducted included the Multistage Fitness Test (MFT) for aerobic endurance, a 30-meter sprint for speed, Illinois Agility Run for agility, Leg Dynamometer for leg strength, and Jump MD for explosive power. The results of the study show that the average VO2Max of the athletes is 30.8 ml/kg/min, which falls into the "Poor" category. This indicates that the athletes' aerobic endurance has not yet reached the optimal standard required for competitive performance. The 30-meter sprint time recorded was 5.53 seconds, categorized as "Good," indicating that the athletes have adequate speed. However, the agility score obtained from the Illinois Agility Run was 21.97 seconds, classified as "Poor," suggesting that the athletes need to improve their agility for quicker movements on the field. The explosive power score, measured by the Jump MD test, was 45.75 cm, which also falls into the "Poor" category, while leg strength, measured using the Leg Dynamometer, resulted in a score of 57.47 kg, classified as "Very Poor." These findings indicate that most components of the physical condition of the Unesa Women FC athletes are still below optimal levels. Therefore, the study emphasizes the need for a more structured and targeted physical training program tailored to the individual needs of each athlete. A training program designed based on these test results will help improve the physical fitness components that are lacking and support the enhancement of their performance during competitions.

Futsal is a high-intensity team sport that requires a combination of speed, agility, and physical endurance, particularly cardiorespiratory endurance. Cardiorespiratory endurance is crucial because it directly relates to a player's ability to maintain optimal performance throughout a match, particularly when facing fast-paced and stressful play. Therefore, variables that can influence this ability, such as body composition and nutritional status, are crucial in developing athlete performance. One indicator that can be used to measure nutritional status and body composition is the Body Mass Index (BMI), which is obtained by measuring weight and height. BMI not only reflects whether a person is within the ideal weight range but also potentially influences the efficiency of the body's organs, including the cardiovascular and respiratory systems. In the context of futsal, players with a higher BMI tend to have a higher body weight, which can hinder movement efficiency and increase fatigue during matches. Conversely, players with a lower BMI may have insufficient energy reserves and muscle mass to maintain stamina during matches. This study shows a significant negative relationship between BMI and cardiorespiratory endurance in futsal players at Bali International University. The results of statistical tests using the Spearman rank correlation method showed a correlation coefficient (r) of -0.504 with a significance value of p = 0.005. This indicates that the higher a player's BMI, the lower their cardiorespiratory endurance tends to be. These findings support the importance of ideal body weight management in futsal athlete training, both through dietary adjustments and measured physical exercise programs.

This study investigates the influence of financial literacy and lifestyle on financial management among gym members at USB Fitness. Financial literacy refers to the ability to understand and apply financial concepts, while lifestyle encompasses spending patterns, consumption preferences, and daily habits. Low financial literacy combined with a high-consumption lifestyle can negatively impact personal financial management, potentially leading to poor budgeting, excessive debt, and limited savings.The research adopts a quantitative approach using a survey method, with data collected through structured questionnaires distributed via Google Forms. The population comprises 60 registered gym members, from which a sample of 52 respondents was determined using the Slovin formula with a margin of error of 5%. Data analysis techniques involve both partial (t-test) and simultaneous (F-test) hypothesis testing to assess the effects of the independent variables—financial literacy and lifestyle—on the dependent variable, financial management.The t-test results indicate that financial literacy has a positive and significant effect on financial management (t-count = 6.384 > t-table = 2.00958; p-value = 0.000 < 0.05), suggesting that higher financial literacy levels contribute to more effective personal financial practices. Conversely, lifestyle shows no significant effect on financial management (t-count = -0.013; p-value = 0.990 > 0.05), indicating that lifestyle variations among respondents do not directly determine their financial management capabilities.Simultaneous testing through the F-test reveals that financial literacy and lifestyle together have a significant influence on financial management (F-count = 21.333 > F-table = 3.191; p-value = 0.000 < 0.05). This suggests that while lifestyle alone may not significantly impact financial management, its interaction with financial literacy can influence financial outcomes.The study concludes that improving financial literacy among gym members is essential for enhancing financial management skills, while lifestyle modifications may only be impactful when supported by strong financial knowledge.

This study aims to identify and compare the prevalence of eating disorders and body image disturbances among female athletes and non-athlete members of fitness clubs. Given the rising societal emphasis on physical appearance and performance, young women are increasingly exposed to unrealistic body ideals, potentially increasing the risk of psychological issues such as body dissatisfaction and disordered eating behaviors. The research employed a descriptive quantitative design involving 100 women aged 18–25 years, consisting of 50 athletes actively participating in competitive sports and 50 non-athletes who regularly attend fitness clubs for general health purposes. Data were collected using two standardized instruments: the Body Image Concern Inventory (BICI) to assess levels of body image disturbance, and the SCOFF questionnaire to screen for symptoms of eating disorders. Results indicated that 34% of female athletes reported high levels of body image disturbance, compared to only 2% of non-athletes. Additionally, symptoms of eating disorders were present in 54% of athletes, while 14% of non-athletes showed similar tendencies. Statistical analyses using Mann-Whitney U and independent samples t-tests confirmed a significant difference between the two groups (p < 0.05), suggesting that athletes may be at a higher risk for developing these psychological issues. These findings underscore the psychological pressures faced by female athletes, who are often required to maintain specific body standards to meet performance expectations. The study highlights the urgent need for preventive measures, including psychological support services and educational interventions that promote healthy body image and eating habits. Implementing such programs in both sports and general fitness environments can help reduce the prevalence of these disorders and foster a healthier relationship with body image among young women.

Practical Lectures and Community Service (KPPM) is a form of student service required by IAKN Tarutung, which is carried out in semester VI and lasts for three months. This program aims to improve community welfare and make the nation's life smarter through social activities that use science and technology. In pasaribu Village, doloksanggul District, KPPM activities are carried out with the aim of increasing children's learning motivation through private tutoring programs, encouraging a spirit of mutual cooperation with the community, and holding healthy exercise with PKK mothers. The research method used involved two main stages: initial observation to identify educational problems in schools, and implementation of a free private tutoring program every Friday for 60 minutes for elementary school children. Apart from that, mutual cooperation activities and healthy exercise with PKK mothers were carried out as part of efforts to improve community welfare and health.The results of KPPM activities show that private tutoring has succeeded in increasing children's interest and motivation in learning in pasaribu Village. An interactive learning approach adapted to school subjects helps children understand the material more easily. Mutual cooperation carried out with the community shows an increase in togetherness and citizen participation in social activities. Meanwhile, regularly held healthy exercise improves the fitness and health of PKK women, as well as strengthening social relations between them. The conclusion of this activity emphasizes the important role of students in serving society through education, health and other social activities. The KPPM program in pasaribu Village has succeeded in creating positive change by involving all levels of society in a joint effort to improve welfare and education.

This study aims to determine the effect of cone drill training through the traditional Hadang game on improving the agility of fifth-grade students at SDN Banjaran 03. The research used a one-group pretest-posttest design with a quantitative approach. The sample consisted of 11 students selected through purposive sampling. Data were collected using a shuttle run test to measure students' agility levels before and after the intervention, which consisted of Hadang game training for four weeks. Data analysis using a paired sample t-test showed a significant improvement in agility after the intervention, with a significance value (p < 0.05). These findings indicate that the Hadang game, which involves quick movements and frequent direction changes, is effective in enhancing the agility of elementary school students. This study recommends incorporating traditional games as an alternative method in physical education classes to improve students’ physical fitness in a fun and educational manner.