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JSSF : Journal of Sport Science and Fitness
Published by Universitas Negeri Semarang
ISSN : -     EISSN : 27455718     DOI : https://doi.org/10.15294/jssf
Core Subject : Education,
Other
Journal of Sport Science and Fitness (JSSF) is an international, double-blind peer reviewed journal. It is published two times a year, on July and November. We do focus on publishing quality articles, therefore only 10 articles each issue of publication. JSSF considers submissions on any aspect of sport science and fitness across age groups and settings.
Arjuna Subject : Umum - Umum
Articles 34 Documents
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The Effectiveness of Physical Exercise on the Speed and Endurance of Fencing Athletes: A Systematic Literature Review Siahaan, Derry Renanda Putra; Rahmat, Alit; Damayanti, Nadia Fadilla; Ginanjar, Afan
Journal of Sport Science and Fitness Vol. 10 No. 2 (2024): Journal of Sport Science and Fitness
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jssf.v10i2.26435

Abstract

Physical exercise is one of the essential aspects in maintaining health and physical fitness. This activity not only helps improve muscle strength and body endurance, but also plays a role in maintaining heart health, increasing flexibility, and reducing the risk of various chronic diseases such as diabetes and hypertension. In the modern era, where lifestyles tend to be more sedentary due to technological advancements and the prevalence of online work, it is crucial for every individual to remain physically active. This study aims to determine the effect of physical training on the performance of fencing athletes, with the main focus on speed, accuracy and endurance. This study uses the Systematic Literature Review (SLR) method, in which researchers collect data through accessible journal portals, especially Sinta, using the Harzing's Publish or Perish application. Out of 200 related articles, 6 were found to be relevant after a screening process using Covidence. The data analyzed in this study were drawn from the 2017–2024 period and are indexed in Sinta and publicly accessible. Based on the results and discussion, it can be concluded that regular and targeted physical training plays an important role in improving the performance of fencing athletes. Increasing explosive muscle strength results in athletes being able to make faster, more effective and targeted attacks on each stab accuracy, thus minimizing the opponent to make defensive movements.
The Effect of Outbound-Inspired Physical Activity Model in Enhancing Physical Fitness of Elementary School Students Warda, Oyatra Utama; Damrah; Sepyanda, Marsika; Damayanti, Nadia Fadilla
Journal of Sport Science and Fitness Vol. 10 No. 2 (2024): Journal of Sport Science and Fitness
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jssf.v10i2.26441

Abstract

Physical fitness is essential for the physical and mental development of elementary school students. However, the rising trend of sedentary lifestyles has limited students’ participation in physical activities. This study aims to develop and evaluate the effectiveness of an outbound-based physical activity model in improving the physical fitness of elementary school students. A quasi-experimental design with a pretest-posttest control group approach was employed. The participants consisted of 100 elementary school students selected through purposive sampling. Data were collected using physical fitness tests, questionnaires, and observations, and analyzed using paired t-tests and analysis of covariance (ANCOVA). The results revealed that students in the experimental group who participated in the outbound program showed a significant improvement in physical fitness compared to those in the control group who received conventional instruction (p < 0.05). Furthermore, students in the experimental group demonstrated higher levels of engagement and motivation toward physical activities. These findings suggest that the outbound-based physical activity model is an effective alternative approach to enhancing physical fitness in elementary school students, while also fostering improvements in social skills and motivation.
Physical Condition Analysis of Central Java PPLP Rowing Athletes Saputro, Ferdian Aji; Wiyanto, Agus; Ratimiasih, Yulia
Journal of Sport Science and Fitness Vol. 11 No. 1 (2025): Journal of Sport Science and Fitness
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jssf.v11i1.24539

Abstract

Introduction: The importance of physical condition in rowing is very influential in the development of an athlete. One of the efforts made to improve the physical condition of athletes is to analyze their physical condition, which will be the solution to the problem. Objectives: This study aims to determine the physical condition of rowing athletes at the Central Java Student Education and Training Center (PPLP). Method: This type of research is descriptive quantitative. The population of this study was 10 PPLP Central Java rowing athletes, consisting of 3 boys and 7 girls. The data collection technique of this study used tests and measurements of physical conditions.  The data analysis technique used is descriptive statistics. Result: The results of this study indicate that the physical condition of PPLP rowing athletes in Central Java is quite good in the parameters of flexibility, balance, muscle power, strength, cardiovascular endurance, speed, body composition, and explosive strength. Conclusion: The conclusion of this study is that the physical condition of PPLP rowing athletes is quite good, and there are several aspects that need to be improved, such as cardiopulmonary endurance and flexibility.
Physical Condition and Concentration on Pencak Silat Athletes Salsaputri, Della; Sultoni, Kuston; Jajat; Ruhayati, Yati; Nur Ajid, Oktoviana
Journal of Sport Science and Fitness Vol. 11 No. 1 (2025): Journal of Sport Science and Fitness
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jssf.v11i1.25638

Abstract

Introduction: Physical condition and concentration are key factors influencing the performance of pencak silat athletes in both fighter and artistic categories. However, the relationship between these two aspects has rarely been explored specifically in this sport. Objectives: This study aimed to compare physical condition and concentration levels between athletes in the fighter and artistic categories, and to examine the relationship between the. Method: A cross-sectional design was used involving 36 athletes (18 fighter and 18 artistic). Physical condition was assessed through power, speed, agility, and endurance tests, while concentration was measured using the Grid Concentration Test (GCT). Data were analyzed using independent samples t-tests and Pearson correlation. Result: The results showed that fighter athletes had significantly higher power, speed, and endurance (p < 0.05), whereas artistic athletes had significantly better agility (p < 0.05). No significant differences in concentration levels were found between the two groups (p > 0.05). Additionally, there was no significant correlation between physical condition and concentration in either group (p > 0.05). Conclusion: These findings suggest that physical and cognitive aspects may develop independently. Therefore, training programs should incorporate both components to enhance overall athlete performance.
The Effect of Active and Passive Cooling Down Exercises on Reducing The Pulse Heart Rate of Female Volleyball Athletes Syari’ah, Kanaya Siti Nur; Pitriani, Pipit; Novian, Geraldi
Journal of Sport Science and Fitness Vol. 11 No. 1 (2025): Journal of Sport Science and Fitness
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jssf.v11i1.26238

Abstract

Introduction: A decrease in pulse rate is the most important part that can be measured to support the effectiveness of the training program. In volleyball, which requires a long game time, coaches must also know the process of effective and efficient cooling exercises that can be used to lower the pulse rate. Cool-down training is one way to reduce the pulse rate. Objectives: This study aims to measure the effects of active and passive cooling exercises on physiological responses, one of which is pulse rate. Method: The method used in this study is a quantitative method with an experimental approach with a research design of a two-group pre-test post-test design. The population in this study was Female Volleyball Athletes of Club Bahana Bina Pakuan Bandung City, with an age group of 15-17 years, many of 16 people. The sampling technique used was total sampling, with a total population of 16 people who became the research sample. The instrument used is a Polar H10 device to measure the pulse rate that drops when given active and passive cooling exercises. Result: The results of this study indicate that a more significant decrease in pulse rate is achieved when using active cooling exercises; the effectiveness obtained is 5.70%, whereas passive cooling exercises result in a significant decrease by 3.68%. Conclusion: This study provides recommendations for coaches to continue to see the decline that occurs when given a cooling exercise program. It is also expected that coaches have polar devices to monitor the condition of athletes.
URA MAWASHI GERI KICK SKILLS TRAINING MODEL FOR KARATEKA AGES 13-15 Hasim, Muhamad Puad; Lubis, Johansyah; Widiastuti, Widiastuti
Journal of Sport Science and Fitness Vol. 11 No. 1 (2025): Journal of Sport Science and Fitness
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jssf.v11i1.28640

Abstract

Introduction: This study aims to develop a training model for ura mawashi geri kicking skills specifically designed for karateka aged 13-15 years. Objectives: The research background is motivated by the low effectiveness of ura mawashi geri kicks in karate competitions, despite this technique having high strategic value in martial arts performance. Method: The research methodology employed Research & Development approach using the ADDIE model, conducted at GOR Kelapa Gading, DKI Jakarta, during June-July 2025. The research subjects consisted of 30 karate athletes aged 13-15 years selected through purposive sampling technique with specific inclusion criteria including minimum 2 years karate training experience and absence of injury. The research instrument utilized validated ura mawashi geri kicking skill tests that had been evaluated and approved by martial arts experts. Data analysis employed both qualitative and quantitative approaches, with statistical significance testing conducted using paired-samples t-test and descriptive statistics for central tendencies analysis. Result: The research results demonstrated significant improvement from the pre-test average score of 76.00 to 89.06 in the post-test following the implementation of 15 specialized training models over 8 training sessions. Conclusion: The developed training model proved to be feasible and effective for enhancing ura mawashi geri kicking skills among karateka aged 13-15 years, providing valuable insights for martial arts training methodologies and competitive performance improvement.
Resting Heart Rate Responses After Three Months of Intensive Exercise Diaz, Diaz Irfansyah; Sumartiningsih, Sri; Rex John Guilabo Bawang, Rex John Guilabo Bawang
Journal of Sport Science and Fitness Vol. 11 No. 1 (2025): Journal of Sport Science and Fitness
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jssf.v11i1.27968

Abstract

Introduction: Resting heart rate (RHR) is a key indicator of cardiovascular adaptation in athletes, reflecting physiological responses to intensive training. While decreased RHR typically signifies improved cardiovascular efficiency, variability in adaptation based on factors like training duration, intensity, and individual characteristics remains understudied in young athletes. Objectives: This study aims to analyze the resting heart rate (RHR) response in young athletes after participating in an intensive 15-week training program. Method: The study uses a quasi-experimental design with a pre-test and post-test approach. The sample consists of 15 male and female athletes who are members of the National Sports Design Program (DBON). Physiological variables were measured using digital devices: a heart rate monitor for RHR, a pulse oximeter for oxygen saturation (SpO₂), and a digital scale and height measurer to calculate body mass index (BMI). Measurements were taken before and after the training program. Data were analyzed descriptively (Mean ± SD), and statistical tests were performed using SPSS software. Normality was tested using the Shapiro-Wilk test, and homogeneity of variance was tested using Levene’s test. Paired t-tests were used to determine differences between pre- and post-values, while Pearson correlation tests were used to examine relationships between variables, with significance set at p < 0.05. Result: The results showed no significant changes in RHR, SpO₂, or BMI, and no significant relationship was found between RHR and SpO₂. Conclusion: This study recommends long-term physiological monitoring and the use of additional parameters to assess exercise adaptation more comprehensively.
Caffeine as an Ergogenic Aid: Enhancing Power Output in Wrestlers Salsabila, Syafira; F. Syihab, Syifa; Rizki Sentani, Muchamad; Puspita Prameswari, Fajria Saliha
Journal of Sport Science and Fitness Vol. 11 No. 1 (2025): Journal of Sport Science and Fitness
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jssf.v11i1.28127

Abstract

Introduction: Caffeine is known as an ergogenic aid that can enhance sports performance by stimulating the central nervous system and reducing perceived fatigue. Objectives: This study aims to determine the effect of caffeine consumption on increasing upper body power in wrestling athletes. Method: This research employed an experimental design with a pre-test and post-test approach on two groups: an intervention group (n=13) that consumed caffeine at a dose of 3–6 mg/kgBW and a control group (n=13) that consumed a placebo. Upper body power was measured using the chest medicine ball throw test, and the data were analyzed using paired t-tests to examine within-group differences and independent t-tests to compare between groups. Result: Paired t-test results showed a significant increase in power within both groups (p<0.05). However, independent t-test results indicated a statistically significant difference between the intervention and control groups (p = 0,002; p < 0,05), with the intervention group showing a greater increase in power. Conclusion: These findings suggest that caffeine consumption positively impacts the power performance of wrestling athletes. Based on this study, it is suggested that strategic caffeine supplementation may serve as a more effective approach in supporting overall athletic performance.
Relative Leg Press Strength Related to Basal Metabolic Rate (BMR), Body Mass, And Body Fat in Female University Students: Implications for The Prescription of Exercise Fauzi Antoni, Muhamad; Damayanti, Enarnimas Dwi Ratna; Suyoko, Andri; Samudra, Fajar Eka; Andriana, Laily Mita; Yudhistira, Dewangga
Journal of Sport Science and Fitness Vol. 11 No. 1 (2025): Journal of Sport Science and Fitness
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jssf.v11i1.31029

Abstract

Introduction: Muscle strength affects metabolic activity and overall well-being, making it a critical component of physical fitness. Objectives: This study examines the relationship between university students' body weight, body fat, leg press strength, and Basal Metabolic Rate (BMR). Method: This study used a cross-sectional analytical design, selected using the purposive sampling technique with comprising female undergraduate students, sport coaching education enrolled in the Faculty of Sports Science at Surabaya State University, 56 participants with the following characteristics:  who were aged (17.4 ± 2.7 years), had a height of (152.5 ± 29.47) cm, and had a weight of (55.15 ± 11.34 kg). Result: The results showed that there was a positive correlation between Basal Metabolic Rate (BMR) and leg press strength (r = 0.283, p = 0.034), indicating that greater lower body strength may help increase metabolism. In contrast, there was no significant correlation between body mass with leg press strength (r = 0.197, p = 0.146) and body fat with leg press strength (r = -0.111, p = 0.417), possibly due to individual differences in muscle distribution and fat storage. Conclusion: These findings emphasize the importance of strength training in improving weight control and metabolic health, especially in females. The study additionally highlights the necessity of additional investigation to gain a deeper comprehension of the mechanisms underlying these relationships and to explore other contributing factors. Overall, this study tells fitness experts how important a customized strength training program is for improving the metabolism and physical health of female college students. 
Basic Motor Skills Profile of Badminton Athletes at a Legendary Club in Bandung Kamilah Wulan Nurfitri; Ugelta, Surdiniaty; Williyanto, Septian
Journal of Sport Science and Fitness Vol. 11 No. 1 (2025): Journal of Sport Science and Fitness
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jssf.v11i1.32034

Abstract

Introduction: The growing popularity of badminton globally underscores the importance of developing basic motor skills from an early age. Components such as speed, agility, balance, coordination, reaction time, and endurance are the main foundations that support an athlete's performance, especially in meeting the technical and physical demands of badminton. Objectives: This study aims to identify and describe the basic motor skills profile of 6 – 12 years old badminton athletes at the PB SGS PLN club in Bandung as a basis for evaluating and designing early age training programs. Method: This study used a quantitative descriptive approach with a cross-sectional design. The sample consisted of 35 athletes selected through purposive sampling. Basic motor skills were measured using six instruments: 10-meter sprint (speed), zig-zag run (agility), stork stand (balance), ball throw-catch (coordination), ruler drop test (reaction time), and beep test (endurance). Result: The results of the measurements show a consistent pattern of improvement in basic motor skills with increasing age. Older children demonstrate higher performance in all motor aspects compared to younger age groups, reflecting natural physical and neuromuscular development during the growth period. Conclusion: These findings emphasize the importance of designing training programs that are appropriate for children's developmental stages. In addition, the results of this study can be used as a practical reference for coaches in optimizing the training of young athletes in a gradual and targeted manner according to the age and motor skills of each individual.

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