Journal of Applied Sport Science, Innovation, and Human Performance
Journal of Applied Sport Science, Innovation, and Human Performance (JASSHIP) is a scientific journal that publishes cutting-edge research on applied sports science, innovation, and human performance enhancement. We bridge the gap between theory and practice, presenting findings that are relevant and directly applicable to coaches, athletes, sports scientists, and health practitioners. Our focus is on the development of sports management, sports technology, sports training methodologies, and an understanding of sports physiology, sports psychology, and sports biomechanics to achieve peak performance in competitive sports and promote good health in recreational sports. In addition, this journal considers research based on history and philosophy, sociocultural aspects, and policy from a sports perspective.
S3 Ilmu Keolahragaan, Universitas Negeri Surabaya
The Effect of Circuit Training on the Speed of Crescent Kicks among Tapak Suci Pencak Silat Athletes in Baureno District
The crescent kick speed of Tapak Suci Martial art athletes in Baureno District is currently suboptimal; consequently, the kicks are often easily anticipated and caught by opponents during matches. This study aims to determine the effect of circuit training on improving the crescent kick speed of Tapak Suci Martial art athletes in Baureno District. The study employs a quantitative approach using an experimental method with a One-Group Pretest-Posttest Design. The population consists of active Tapak Suci Martial art athletes in Baureno District. The sample comprises 10 male athletes aged 14–17 years. The instrument used involves testing and measuring crescent kick speed over a 10-second duration. The treatment consists of a circuit training program conducted over four weeks (16 sessions), featuring a variety of exercises: sit-ups, back-ups, split jumps, ladder drills, jump rope, and shuttle runs. Data analysis utilizes parametric statistics—specifically the Paired Sample t-Test—processed via SPSS version 26, following a prerequisite normality test (Shapiro-Wilk method). The results indicate an increase in the mean kick speed from the pre-test to the post-test. The mean speed for right-leg kicks increased from 15.80 to 18.30, while the mean speed for left-leg kicks increased from 15.00 to 17.50. The Paired Sample t-Test results show a significance value (2-tailed) of 0.000 (p < 0.05) for both right and left kicks. Based on these results, it can be concluded that circuit training has a significant effect on improving the crescent kick speed of Tapak Suci martial art athletes in Baureno District. This training method is effective and is recommended for implementation by coaches to develop the athletes' physical conditioning components and kicking speed.
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The Effect of Resistance Band Training on Upper Limb Muscle Endurance, Abdominal Muscle Endurance, Back Muscle Endurance and Archery Accuracy in Athletes at the Surabaya Fast Archery Club
Archery is a sport that requires high concentration, postural stability, coordination, and good physical condition for a long time. The physical components needed by archery athletes are muscle endurance, especially in arm muscle endurance, abdominal muscle endurance (core), and back muscle endurance. Physical training using resistance bands and planks is believed to be an effective solution to increase muscle endurance capacity which is useful for supporting the stability and accuracy of athletes' archery. The method used in this study is a quasi-experimental method with a quantitative approach and a Two Group Pretest-Postest Design. The sample in this study amounted to 20 athletes from the Surabaya Fast Archery Club and the sample was divided into two groups randomly and a pretest-posttest was carried out on measurement test items in the form of push-ups, sit-ups, back-ups, and scores at a distance of 40 meters which was carried out to develop an appropriate training program. The following results of the t-test are 0.00 or P < 0.05 and the results of the independent t-test are > 0.05 or P > 0.05, so there is an effect of resistance bands on muscle endurance. Research has shown that resistance band exercises and planks are effective in improving muscle endurance in the arms, abdomen and back. There was no significant difference between the seated face pull and rowing programmes and the plank. This improvement in muscle endurance was also not associated with archery accuracy.
Efforts to Improve the Agility of Sixth-Grade Students at SDN Pangkatrejo Through the Traditional Game of Gobak Sodor
This research is motivated by the importance of developing basic motor skills and physical components, particularly agility, in elementary school students through effective and enjoyable Physical Education, Sports, and Healt learning activities. The lack of traditional game usage and the suboptimal stimulation of agility in Physical Education learning underline the need for learning intervention methods based on local wisdom. This study aims to determine whether the application of the traditional game gobak sodor can increase the agility of sixth-grade students at SDN Pangkatrejo. This research employs a quantitative approach with an Action Research method. The research subjects consisted of 23 sixth-grade students at SDN Pangkatrejo. The instrument used to measure the students' agility levels before (pre-test) and after (post-test) the treatment was the Illinois Agility Run Test. The treatment, in the form of a structured practice program and gobak sodor game activities, was administered for one month from April 14 to May 16, 2026. Data analysis techniques used were descriptive statistical analysis and the Wilcoxon Signed Ranks Test for. The results indicated a significant increase in student agility. The mean travel time for student agility decreased from 20.2435 seconds during the pre-test to 17.2004 seconds during the post-test. The Wilcoxon Signed Ranks Test showed a Z-value of -4.198 with an Asymp. Sig. (2-tailed) significance value of 0.000. Thus, it can be concluded that the application of the traditional game gobak sodor is significantly proven to increase the agility of sixth-grade students at SDN Pangkatrejo. The traditional game gobak sodor can be recommended as an effective and enjoyable alternative learning medium in PJOK to enhance students' physical fitness components.
Evaluation of the Physical Condition of Pb Bhirawa Sidoarjo U-17 Athletes
This study aims to evaluate the physical condition of PB Bhirawa Sidoarjo U-17 athletes as a basis for developing a more effective and targeted training program. Badminton is a sport that demands fast, explosive, and repetitive movements, making optimal physical condition crucial for supporting performance. This study uses a quantitative descriptive method. The research sample consists of 7 U-17 athletes who are actively training at PB Bhirawa Sidoarjo. Data collection was carried out through a series of physical tests including: 30-meter run (speed), push-ups (arm muscle strength), sit-ups (abdominal muscle strength), T-test (agility), Multi Fitness Test/MFT (aerobic endurance), seated medicine ball throw (arm muscle power), and sargent jump (leg muscle power). Data analysis used mean and percentage techniques. The results show that the physical abilities of PB Bhirawa Sidoarjo U-17 athletes fall into varied categories for each test component. Some athletes have demonstrated good ability in speed, muscle strength, agility, endurance, and explosive power; however, several athletes still fall into the fair to poor categories. These differences indicate that the athletes' physical condition is not uniform, necessitating more specific, structured, and sustainable physical evaluation and training programs. This ensures that all components of the athletes physical condition develop optimally to support the improvement of athlete achievement in competitions.
Biomechanical Analysis of Performance in Rugby: A Systematic Review
Background and Study Aim. Rugby demands high-intensity physical outputs, where biomechanical factors influence performance in skills like sprinting, tackling, scrummaging, and kicking, while also informing injury prevention. This systematic review synthesizes evidence on kinetic, kinematic, and neuromuscular determinants of rugby performance. Material and Methods. PubMed, Scopus, and ScienceDirect were searched using terms combining "biomechanical analysis," "performance," and "rugby" up to November 28, 2025. Inclusion criteria focused on English-language empirical studies on rugby biomechanics. After screening 105 studies (PRISMA flowchart), 4 met criteria for qualitative synthesis. Results. Included studies (n=4) examined place-kicking kinematics, markerless 3D pose estimation in tackles, sprint acceleration strategies, and step-up kinetics for speed development. Key findings highlight technique degeneracy (multiple strategies yielding similar outcomes), technology limitations during contact/occlusion, and training specificity (e.g., jump variations for maximal speed transfer). Conclusion: Rugby performance optimizes through individualized kinematic strategies, force-velocity profiling, and technologies like AI/video analysis. Recommendations include personalized training, standardized post-tackle frameworks, and integrated lab/field monitoring to enhance efficacy and reduce injury risk.