Publication Search

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.  

The 50 meter freestyle is a sprint event that requires explosive strength, efficient technique, and optimal body stability. Arm muscle strength contributes directly to propulsion, while core muscle strength supports stability and force transfer. This study aimed to analyze the influence of arm and abdominal muscle strength on 50-meter freestyle swimming performance among athletes of the Science Swimming Team (SST) Sidoarjo. A quantitative correlational design was employed with a sample of 10 athletes aged 10–12 years (5 males, 5 females). Arm muscle strength was measured using the pull-up test, abdominal strength with a 30-second sit-up test, and swimming performance with the best time in a 50-meter freestyle trial. Data were analyzed using Spearman correlation and multiple linear regression with a 0.05 significance level. Results indicated a significant correlation between arm strength and swimming performance (r = 0.773; p = 0.009), while abdominal strength showed a positive but non-significant correlation (r = 0.609; p = 0.062). Regression analysis revealed that both variables together explained 57.7% of the variance in swimming speed. It is concluded that arm muscle strength has a dominant influence on freestyle sprint performance, whereas core muscles serve as supporting factors for stability and efficiency. These findings highlight the importance of integrated training programs combining arm and core strengthening to optimize sprint performance in young swimmers.

Physical condition is a very important aspect to support a student's achievement, so condition factors must be considered by students. The aim of this research was to determine and assess the level of physical condition of football extracurricular students at SMA Negeri 1 Purwosari. This type of research uses a quantitative descriptive survey design, the variable studied is the level of physical condition. In this study, the samples were taken from all students who were active in taking part in extracurricular football at SMA Negei 1 Purwosari, totaling 30 students. The results of the physical condition of extracurricular football students at SMA Negeri 1 Purwosari obtained several criteria, namely: the 30 meter sprint test of 30 students got a frequency of 15 with a percentage of 50% and was included in the poor category. In the T-test, the frequency was 15 with a percentage of 50% and was included in the medium criteria. In the Sit and Reach test, the frequency was 19 with a percentage of 63.3% and was included in the good criteria. In the Standing Long Jump test, the frequency was 20 with a percentage of 66.7% and was included in the medium criteria. In the Yo-yo Test, the frequency was 13 with a percentage of 47.6% and was included in the medium criteria. In the Push-up test, the frequency was 20 with a percentage of 66.7% and was included in the medium criteria. It is hoped that by conducting this research, students can further improve their physical condition so they can play optimally.

In modern soccer, lower-limb power is a crucial component that determines an athlete’s performance in sprinting, kicking, and jumping. This study aimed to compare the effects of Squat jump and Hexagon jump plyometric exercises on lower limb power in youth soccer athletes from Garuda Timur Football Academy Surabaya. The research employed a quasi-experimental method with a pretest–posttest two group design involving 12 athletes aged 14–17 years. Participants were divided into two groups of six: a Hexagon jump group and a Squat jump group. Lower limb power was assessed using the vertical jump test before and after the training intervention. Data were analyzed using the Matched Subject Ordinal Pairing (MSOP) method to determine the relative effectiveness of both training types. The results indicated that both exercises significantly improved athletes’ vertical jump performance. However, the Hexagon jump exercise showed greater effectiveness, with a winning proportion of 67% (4 out of 6 pairs) compared to 33% for the Squat jump. The superior results of the Hexagon jump group were attributed to its multidirectional movement pattern, which provides greater stimulation of coordination, balance, and neuromuscular reactivity. Therefore, it can be concluded that Hexagon jump training is more effective than Squat jump in enhancing lower limb power among youth soccer athletes.

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.

Village websites currently generally only provide information in the form of an interface for users, such as village profiles, potential areas, population data, and current news. However, the majority are not yet equipped with Application Programming Interface (API) support that allows for flexible and automated data integration and exchange. This is a challenge when dynamic access is needed by third-party systems, such as public service platforms, mobile applications, or local government information systems, which require real-time and accurate synchronization of population data. The project aims to implement a RESTful API that can be accessed securely, efficiently, and easily understood by developers to retrieve villagers' data. The development of the system is carried out using the Agile method, which supports rapid iteration and periodic evaluation to ensure that each feature functions optimally according to the needs of users and field conditions. This Agile method is applied in several sprints that include the stages of needs planning, designing the API endpoint structure, coding, documentation, and testing of the integration and security of the system as a whole. The results of the implementation show that the API successfully retrieves data directly from the village database, and presents it in a JSON format that is compatible for use by both frontend and third-party systems. This API supports pagination features for efficient access to large amounts of data, and is equipped with Basic Authentication to keep data access secure from being abused. With this API, the village website not only becomes a static information medium, but also transforms into a digital service platform that is open for cross-system integration. This supports the development of a more modern, efficient, sustainable, and collaborative village information system in the future, so that public services can be significantly improved.

This research aims to design and develop a web-based school payment information system using the Agile method at SMK Mutiara Bangsa Cengkareng.The school’s financial management process was still conducted manually using ledgers and spreadsheets, risking data errors and reporting delays.Data collection methods included interviews, observations, and documentation studies.The system was developed iteratively using Agile development cycles, involving stakeholders at each sprint stage.The final result is a web-based application that facilitates payment input, financial reports, transaction history, and role-based access for administrators, staff, teachers, students, and parents.The system improved efficiency, transparency, and accuracy in the school's financial administration.

In the dynamic and exciting technology startup industry uncertainty , management project device soft need approach adaptive and responsive to risk . This study explores synergy between Scrum methods and management risk in increase success project at PT XYZ, a startup that implements the Agile-Waterfall hybrid model. Qualitative methods with studies case and analysis descriptive used for digging practice management integrated risk informally in Scrum processes, such as Sprint planning and retrospectives, with support tool collaborative such as Trello and spreadsheets. The results show This synergy increases identification and mitigation risk , collaboration team , and success project in a way technical and managerial . However , the challenges Still found in the documentation risks and the roles of the Scrum Master and Product Owner that need to be considered reinforced . This study recommends development documentation more standardized risks and strengthening role the key to increasing Agile maturity and resilience projects in the technology startup environment

Sprint or short-distance running is a running event in the sport of athletics that demands maximum speed in a short amount of time. Speed and acceleration are key factors in achieving success in sprint events, making effective training methods essential to enhance athlete performance. This study aims to determine the effect of uphill running training on the speed and acceleration of sprinter athletes in the Athletics Student Activity Unit (UKM) at Universitas Negeri Surabaya. The research uses a quantitative method with a pre-experimental design, specifically the One-Group Pretest-Posttest. The sampling technique used is purposive sampling, with a population of 24 athletes and a sample of 15 male sprinter athletes aged 18-21 years. The instrument used was a 60-meter and 30-meter sprint test, with uphill running training conducted over 6 weeks at a frequency of three times per week. The results showed a significant improvement in the athletes' speed and acceleration after undergoing uphill running training, as evidenced by the t-test results with a significance value of <0.05. Therefore, it can be concluded that uphill running training can positively influence the speed and acceleration of sprinter athletes in the UKM athletics program at Universitas Negeri Surabaya.

This study aims to examine the influence of bounding (lompat kijang) and split squat jump training on sprint performance among Physical Education students at a university in Medan. A descriptive qualitative approach was used, involving ten participants selected through purposive sampling. Data were collected through in-depth interviews and analyzed using thematic analysis. The findings indicate that bounding exercises significantly improve stride length, movement coordination, and sprint acceleration. Meanwhile, the split squat jump contributes more to initial push-off strength, body stability, and lower-limb muscular endurance. Most participants reported that combining both exercises produces the most optimal sprint improvement, as it simultaneously trains horizontal and vertical power. Additionally, the combined training enhances running efficiency and increases participants’ confidence during short-distance sprinting. The study concludes that both plyometric exercises are effective and recommended for speed-training programs, particularly for students and beginner athletes seeking comprehensive sprint performance enhancement.

The development of information and communication technology in Indonesia has grown significantly over the past few years. Thus, there are many opportunities to digitize the business process of a business or business ecosystem. One of them is in the field of digital economy by adapting business processes into a digital platform, such as designing an e-commerce platform in a village that has commodities in it so that related commodities can increase the visibility of their products. This research uses Belega Village as a case study location considering that this village has a commodity in the form of bamboo crafts. Research was conducted to build a web-based bamboo handicraft e-commerce application that would be expected to increase product visibility. The application itself is built using the Agile Development method using the sprint model. This application is built with a microservice architecture with Express.js technology as a backend service and Next.js to create client applications and PostgreSQL as a DBMS. The result of this research is a web-based e-commerce application that is expected to increase the visibility of products from bamboo crafts from Belega Village.

The implementation of an effective and efficient information system is very important in managing letter archives in government offices. This study aims to design and implement a letter archive information system using the Scrum method at the Umbu Ratu Nggay Barat District Office. Scrum was chosen as a software development framework because of its adaptive and iterative nature, allowing the team to accommodate changing needs quickly. Through this approach, system development is carried out in several sprints, which ensures that the development process runs in a structured manner with a clear division of tasks. The results of this study indicate that the implementation of the Scrum method can increase efficiency in the letter archive management process and accelerate the response to changes in system needs. With this letter archive information system, the sub-district office can manage letter documents in a more organized, easily accessible, and secure manner. This study is expected to be the basis for further development to improve the quality of administrative services in government institutions.

The Scrum method is a methodology included in agile software development. Scrum is considered to be able to produce good quality software according to user wishes, can be used in large and small projects, and is easy to adopt changes. The scrum activity stages include product backlog, sprint backlog, daily scrum, sprint review, and sprint retrospective. Roles in Scrum include product owner, scrum master, and development team. Scrum has structured and iterative stages, so that if the product in the first sprint is not sufficient to meet needs, then in the next sprint a system can be developed that is in accordance with user evaluation. The results obtained from Designing a Hack Incident Reporting System at Kominfo Central Lombok Using the Agile Scrum Approach were proven to be able to overcome changes in requirements during the system development phase, producing products that met the wishes of users because they received repeated reviews.    

During the period of compulsory education in Indonesia, which is 12 years, the government requires mathematics as the main learning subject for extracts which will continue to have an impact on people’s lives. The level of ability in a field of science must be measured to obtain valid data for the development of education in Indonesia. The use of Geogebra Mathematics Software in schools in Indonesia is not surprising at this time, technological developments have made the use of Geogebra mathematics software commonplace. This research is a Systematic Literature Review, in this research the author analyzes and compares several articles obtained from the internet or digital databases, for example Semantic Scholar or Sprinter Link. The articles that have been found are then selected according to the title researched, so that several reference articles are obtained. The research results show that the use of Geogebra mathematics software in learning has a great influence on students’ computing abilities. Geogebra is a media with a visual, analytical and numerical approach that can be solved using algorithms that require computational capabilities to operate. There is empathy in computational thinking, namely algorithmic thinking problem solving, pattern recognition, and abstraction and generalization.

With the increasing era of globalization today, competition in the industrial sector is becoming increasingly fierce and competitive. With the development of modern technology for the better but on the other hand raises problems for the environment. Every business actor who wants to win the competition must pay full attention to the quality of the products or services produced, at a low cost, the right time and quantity, and safe conditions. This study aims to analyze and reduce waste of packaging waste at PT XYZ, a manufacturing company engaged in the manufacture of medicines and vaccines. In the last 7 months, there were 1,906 pcs of defective packaging out of a total of 204,940 pcs used. The defects were caused by mold, misprinted information, faded colors, and lack of glue on the packaging. The methods used in this research are Pareto diagram and fishbone diagram. Pareto diagrams are used to identify dominant product defects, while fishbone diagrams are used to identify the causes of defects. It is expected that the results of this research can help PT XYZ reduce packaging waste and improve the quality of their products. By reducing packaging waste, PT XYZ can also contribute to reducing negative impacts on the environment.

The assessment of information technology governance is a crucial aspect of managing IT resources to align the implementation of information technology with business operations and corporate objectives. At PT Petrokimia Gresik, IT governance assessment is still carried out using conventional methods. Therefore, this research aims to design and develop a Self-Assessment Information Technology Governance System at PT Petrokimia Gresik. This research begins with user interviews and a literature review from various sources such as journals, reference documents, and COBIT 2019 books. The system development is conducted using the SCRUM method to produce a system that meets user requirements. In the SCRUM method, there are four main activities: sprint planning, daily scrum, sprint review, and sprint retrospective. This information system was successfully developed using the Laravel framework, which proved to streamline web application development. The implication of this research is the creation of a Self-Assessment Information Technology Governance System. Based on the results of user acceptance testing, the system produced has been well-received and meets user needs.

The amount of newspaper waste makes the writer want to use newsprint as the basic material for making nail art extensions as a new innovation in the nail art field. This research was conducted with the methods of observation, documentation, literature, experiments, interviews and questionnaires. The manufacture of nail art extensions using newspaper waste is carried out in 3 stages, namely, the preparation of tools and materials, the process of making nail art extensions using newspaper waste and the final stage of using nail art extensions on fingernails. The feasibility of nail art extensions using newsprint waste, the color indicator has an average value of 4 which is declared feasible, the shape indicator has an average value of 4.5 which is considered quite feasible, the texture indicator has an average value of 4 which is considered quite feasible, the ease of application indicator obtains an average value. an average of 4.5 was declared quite feasible and the product design indicators obtained an average value of 4.3 with a fairly decent category. The results of a public test conducted on 38 respondents can be concluded that 94% like nail art extension products from newsprint waste. The results of this study produce a product that has a unique and attractive design because of the pattern of waste newsprint that makes the product look aesthetic. Thus, it can be concluded that nail art extension products using newsprint waste are quite feasible to use.