JSKK publishes high-quality research in sport science, physical education, biomechanics, physiology, psychology, and health promotion, contributing to the advancement of active, healthy, and resilient societies.
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Years of Publication
JSKK serves as a scholarly platform for research in sports science, physical education, human performance, and public health, promoting evidence-based innovations that support active, healthy, and resilient communities.
Studies focusing on biomechanics, exercise physiology, physical fitness, and athletic performance optimization.
Studies focusing on biomechanics, exercise physiology, physical fitness, and athletic performance optimization.
Browse recent volumes, current issues, and published article collections from this journal.
VOL. 10 NO. 2
Advancing sports science and health research to enhance human performance and well-being.
Explore selected research articles based on editorial recommendation, readership engagement, and scholarly impact.
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Editor's Choice
Research Article
Whole Body Reaction Time (WBRT) is an important biomotor component in the performance of badminton athletes, especially in responding to unexpected stimuli during matches. This study aims to compare the WBRT between male singles and doubles badminton athletes aged 14–17 years. The research used a quantitative comparative approach with purposive sampling technique. The population consisted of 60 athletes at PB Taqi Arena, West Bandung Regency. Based on the inclusion criteria, 37 athletes were selected as samples, consisting of 18 singles and 19 doubles athletes. Data collection was conducted on May 3–4, 2025. Measurements included anthropometry (Omron Karada Scan HBF-375), height (Stature Meter OneMed HT701), and WBRT (Whole Body Reaction Measuring Equipment Takei TKK-5408). Shapiro–Wilk normality test results indicated normal distribution in both groups (p > 0.05). The average WBRT for singles athletes was 0.286 ± 0.024 seconds, while for doubles athletes it was 0.260 ± 0.021 seconds. The independent samples t-test showed a significant difference between the two groups (p = 0.002). These findings indicate that doubles athletes have better whole body reaction speed compared to singles athletes. This difference is likely influenced by tactical demands and playing patterns in doubles, which require quick responses to stimuli from both opponents and partners. These results can serve as a basis for designing specific training programs based on match type to optimally improve athletes
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Agility is an important component in badminton. Agility is the ability to move with speed and accuracy to reach the shuttlecock in various corners of the court. This study aims to analyze the correlation between lower-limb power and body composition on agility performance in badminton athletes. Participants were 27 female badminton athletes aged 15.44 ± 0.97 years. Body composition (height, body fat percentage - BF%, body mass, BMI, skeletal whole body muscle - SM%), countermovement jump - CMJ, and t-test agility was measured. The data was analyzed using descriptive statistics, Spearman correlation test and hierarchical multiple regression. Spearman correlation test showed that there was no significant relationship with agility (r = -0.40, p = 0.884). Hierarchical regression analysis showed that age, body composition, and CMJ only explained 17.4% of the variance in agility, with a statistically insignificant contribution (ΔR² = 0.019, p = 0.483). Among the independent variables, BF% had a strong positive relationship with body mass (r = 0.763, p < 0.01), indicating that the higher BF%, the higher the body mass. Meanwhile, SM% had a significant negative correlation with BF% (r = -0.498, p < 0.01) and body mass (r = -0.506; p < 0.01), indicating that the higher SM%, the lower the BF% and body mass. Although the variables tested did not contribute significantly to agility, various previous studies have shown that training programs such as plyometrics, core strength training, and Velocity-Based Resistance Training (VBRT) are effective in increasing lower-limb power, which also affects agility. Keywords: agility, body fat, skeletal muscle, lower-limb power, CMJ, youth, badminton
Read more10.5614/jskk.2025.10.2.2
Highly Cited
Physical activity during adolescence plays a vital role in supporting optimal physical and mental development. This study aimed to assess physical activity levels and sedentary behavior among junior high school students in Thousand Islands regency of Jakarta, Indonesia. The research involved 215 students from grades VII and VIII, consisting of 104 males and 109 females. Physical activity levels were assessed using a modified version of the International Physical Activity Questionnaire (IPAQ) tailored for adolescents. The results indicated that the majority of students on both islands demonstrated moderate to high levels of physical activity, with a relatively low prevalence of sedentary behavior. These findings suggest that the students’ engagement in active routines is influenced by the geographic and socio-cultural characteristics of their island environment, which promote outdoor and communal activities. However, a small portion of students reported low activity levels, emphasizing the need for context-sensitive interventions to sustain and enhance active behaviors. This study highlights the importance of integrating localized health promotion strategies to prevent the long- term risks of obesity, metabolic disorders, and mental health challenges. The results serve as a valuable reference for health policymakers and educators in designing effective physical activity programs for youth in remote and coastal communities. Keywords: children, jakarta, leisure, physical activity, sedentary
Read more10.5614/jskk.2025.10.2.3
Invited Paper
Background: Anterior cruciate ligament (ACL) injury is one of the most serious and frequently occurring injuries among youth football players. Such injuries not only disrupt athletic performance and training continuity but also pose long-term risks to an athlete
Read more10.5614/jskk.2025.10.2.4
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