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Cahniyo Wijaya Kuswanto
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Journal of Coaching and Sports Science
Published by Foundation of Advanced Education
ISSN : 29631459     EISSN : 29631483     DOI : 10.58524/jcss.v1i2.
Core Subject : Education, Social,
Education Social Sciences
Journal of Coaching and Sports Science is an academic journal that aims to provide education about coaching and sports science. In this journal, theory and practice in coaching will be integrated with sports science as a critical reflection of coaching practice, as well as improving sports academics and coaches to help athletes acquire skills through sports science. The vision of this journal uncovers, understands, and develops the processes involved in sports coaching and the development of sports science.
Arjuna Subject : Umum - Umum
Articles 59 Documents
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Doping in Martial Arts: How Is It Managed? Nugroho, Agung; Wicaksono, Arko Jatmiko; Widodo, Hary; Budiharjo, Santosa; Irianto, Djoko Pekik; Rustamaji, Rustamaji; Lismadiana, Lismadiana
Journal of Coaching and Sports Science Vol 4, No 1 (2025): Journal of Coaching and Sports Science
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Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58524/jcss.v4i1.683

Abstract

Background: Doping remains a persistent issue in martial arts, exacerbated by the easy access to over-the-counter medications containing banned substances. Despite existing regulations, athletes often lack comprehensive knowledge of anti-doping measures, leading to unintentional violations.Aims: This study aims to evaluate the effectiveness of a doping management program in improving knowledge and awareness of doping among martial arts athletes.Methods: A convergent parallel mixed-methods design was employed. Twenty-one national-level martial arts athletes were selected using purposive sampling. Data were collected through structured interviews and standardized questionnaires. The doping management intervention included a web-based doping screening tool, an anti-doping educational module, and a 24-hour online consultation clinic implemented during the 2024 National Sports Week (PON) training period.Results: Results showed a significant increase in athletes' knowledge of doping, with the mean score rising from 54% to 76% (p = 0.002), especially in terms of understanding Therapeutic Use Exemptions (TUEs). However, the study also found low utilization of online doping clinics, confusion regarding TUE procedures, and continued reliance on coaches for drug use. Document analysis and institutional mapping showed that coordination between stakeholders was fragmented, and socialization of anti-doping services was not optimal.Conclusion: The findings underscore that coaches play a pivotal role in doping management, serving as primary sources of information and guidance for athletes. Strengthening the involvement of coaches in anti-doping education is essential to maintaining a doping-free environment and ensuring the success of doping prevention strategies in martial arts.
Physics in Badminton: How Prospective Coaches Perceive and Apply Torque Concepts Kurniawan, Tian; Fratiwi, Nuzulira Janeusse; Nurdini, Nurdini; Agus, Herdiansyah; Iqbal, Nur Habib Muhammad; Amarulloh, Reza Ruhbani; Samsudin, Achmad
Journal of Coaching and Sports Science Vol 4, No 1 (2025): Journal of Coaching and Sports Science
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Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58524/jcss.v4i1.564

Abstract

Background: Training methodologies in badminton often focus on technique and endurance, yet the integration of scientific principles, such as torque, remains underutilized. As a critical factor influencing shot power, speed, and accuracy, a deeper understanding of torque can optimize training effectiveness and systematically enhance athlete performance.Aims: This research aims to analyze prospective badminton coaches’ understanding and application of physics concepts, particularly torque, in training methodologies.Methods: This research employed the qualitative descriptive method involving 24 prospective badminton coaches (17 males and 7 females, aged 18-22) in Bandung, Indonesia. A survey was conducted to assess their understanding of physics and its application in training. Data collected through the questionnaire was analyzed using NVivo software, which facilitated thematic analysis and coding of qualitative responses.Results: The findings indicate that, while most of the respondents are familiar with physics terms, only a few recognize torque as a relevant concept in the badminton context. A deeper understanding of torque can help coaches optimize playing techniques by improving racket rotation efficiency, thereby enhancing hitting power with minimal energy expenditure.Conclusion: This research demonstrates that integrating physics concepts, particularly torque on the racket, into badminton training provides a valuable perspective for improving training quality. The findings suggest that badminton coach training programs should integrate physics concepts to enhance training effectiveness and efficiency while systematically improving athlete performance based on scientific evidence.
Physiology Sport Approaches: The Role of Walking in Dopamine Stimulation for Transforming Habits and Mental Health Zulkarnain, Zulkarnain; Asnaini, Asnaini; Fitria, Rini; Hasanah, Uswatun
Journal of Coaching and Sports Science Vol 3, No 2 (2024): Journal of Coaching and Sports Science
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Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58524/jcss.v3i2.526

Abstract

This study investigates the connection between dopamine stimulation, negative habit management, and mental health improvements through walking. Dopamine, a key neurotransmitter in the brain's reward system, plays a crucial role in motivation, self-control, and emotional regulation. This study aims to evaluate whether walking, as a form of altruistic behavior and social commitment, can stimulate dopamine release that promotes positive emotions, better self-regulation, and the reduction of negative habits. This descriptive quantitative study involved 250 respondents aged 20–50 who regularly walked 3 to 5 times per week. This study measured mental health parameters, including stress, anxiety, and depression, as well as negative habits, including overthinking and poor sleep patterns. The findings demonstrated significant improvements, including reductions in stress (-58%), anxiety (-53%), and depression (-54%), along with increases in happiness (+24%) and calmness (+20%). Behavioral changes were also observed, such as decreased overthinking (-45%) and poor sleep patterns (-46%), alongside enhancements in positive thinking (+27%), social awareness (+28%), and optimism (+29%). These changes suggest an increase in dopamine production associated with regular walking activities. This study highlights that walking is an accessible physical intervention that can enhance psychological well-being, reduce destructive behaviors, and strengthen dopamine-related neurobiological pathways. Additionally, this study contributes to positive psychology and exercise science by providing insights into the role of walking in supporting mental health and building personal resilience.
Biomechanical Analysis of Table Tennis Racket Performance Using Makassar Ebony Veneer: A Comparative Study Sugiharto, Wachid; Nurhasan, Nurhasan; Kartiko, Dwi Cahyo; Ardha, Muchamad Arif Al; Bikalawan, Sauqi Sawa; Wigraha, Sheva Edhu; Arbaan, Jay Mark
Journal of Coaching and Sports Science Vol 4, No 1 (2025): Journal of Coaching and Sports Science
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Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58524/jcss.v4i1.724

Abstract

Background: A racket's performance in controlling trajectory and manipulating the speed of the ball is greatly influenced by its structural characteristics and materials. The material of the table tennis racket can affect its performance, reducing the speed and control of the ball.Aims: The main objective of this research is to analyze the biomechanical performance of the Garuda Unesa Speed (GUS) table tennis racket made from Makassar ebony veneer as the main material and to compare its attributes, particularly speed and control, with those of high-end commercial rackets.Methods: This study applies a comparative design by comparing two types of rackets in table tennis. Two-dimensional kinematics analysis was also conducted using Kinovea software.Result: Based on the t-test results with a non-parametric path, all variables showed a significant difference with a p-value of 0.01 (Sig 0.05). However, one variable did not show a significant difference, namely the velocity variable, with a p-value of 0.05 (Sig 0.05). If examined from the average value, the speed variable has a slight difference (a difference of 0.5). The average speed data shows that the Makassar ebony wood veneer racket has better speed.Conclusion: Based on the results of biomechanical analysis, the reflection of the Makassar ebony wood veneer racket makes a good contribution to the speed and control of the table tennis racket. This finding has practical implications for designing an effective table tennis athlete smash and block game by utilizing the speed and control of a table tennis racket using Makassar ebony wood veneer.
Acute Physiological Effects of Energy Drinks on Cardiovascular Endurance, Blood Pressure, and Heart Rate in Collegiate Athletes Rabuya, Rey L.; Lobo, Joseph; Andacao, Arvin A.; Pajo, Leonard Sydrick H.; Cariaga, Hazel Joyce M.
Journal of Coaching and Sports Science Vol 4, No 1 (2025): Journal of Coaching and Sports Science
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Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58524/jcss.v4i1.639

Abstract

Background: Energy drinks are commonly consumed by athletes due to their caffeine and stimulant content, which is believed to enhance performance. Previous research suggests benefits for anaerobic power and reaction time, but their effects on cardiovascular endurance and physiological responses remain inconclusive.Aims: This study aimed to examine the acute effects of energy drink consumption on cardiovascular endurance, blood pressure, and heart rate among collegiate athletes in the Philippines.Methods: Using a one-group pretest-washout-posttest design, 21 collegiate athletes (12 males, 9 females) participated. Cardiovascular endurance was assessed using the beep test. Systolic blood pressure (SBP) and diastolic blood pressure (DBP) were measured using a digital sphygmomanometer (Omron 10 Series BP7450), while heart rate (HR) and heart rate recovery (HRR) were monitored digitally. Participants underwent a pretest, consumed 330 ml of energy drink, completed a washout period, and then performed a post-test. The Shapiro-Wilk test was used to assess normality, and paired sample t-tests determined pre–and post-test differences.Result: Energy drink intake did not significantly improve cardiovascular endurance (p .05). However, significant increases in DBP (p = .040) and HR (p = .029) were observed in males. At the same time, females showed a significant rise in SBP (p = .032). HRR significantly improved in females (p = .031), indicating a possible short-term recovery benefit. Combined results showed a significant increase in DBP (p = .021), while HRR approached significance (p = .055).Conclusion: Although no enhancement in cardiovascular endurance was observed, energy drinks acutely influenced cardiovascular markers, raising blood pressure and heart rate in males and enhancing HRR in females. The absence of a control group and uncontrolled variables, such as caffeine metabolism, hydration, and socioeconomic factors, limit causal conclusions. These findings suggest the need for sex-specific guidance when using energy drinks. Future randomized trials with larger samples are recommended.
Aerobic VS Anaerobic Exercise on Body Composition and Hormonal Adaptations in Athletes and Non-Athletes: A Randomized Controlled Trial Kabir, Md Shahariar; Yadav, Sunita; Biswas, Subhashis; Pradhan, Sangeeta; Geantă, Vlad Adrian
Journal of Coaching and Sports Science Vol 4, No 1 (2025): Journal of Coaching and Sports Science
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Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58524/jcss.v4i1.553

Abstract

Background:This study examined the differential effects of aerobic and anaerobicexercise on body composition and hormonal adaptations in athletes and non-athletes, providing evidence-based recommendations for optimizing fitness andhealth outcomes, such as training duration, frequency, and the combination ofaerobic and anaerobic exercises.Aim: These specific recommendations aim to enhanceboth physical performance and overall health, tailored to the needs of differentpopulations.Methods: A randomized controlled trialinvolving 120 males(60 athletes,60 non-athletes, aged 18–25 years) was conducted. Participants engaged in 12 weeks ofeither aerobic or anaerobic exercise. The aerobic group performed moderate-intensity continuous training (MICT) for 50 minutes persession, 3 times per week,while the anaerobic group performed 30 minutes of resistancetraining followed by 20 minutes of high-intensity interval training (HIIT) 3 times per week. Dual-energy X-ray absorptiometry (DXA) measured body composition, while blood samplesassessed testosterone, cortisol, and growth hormone levels. Mixed ANOVA analyzedthe effects of exercise type, athletic status, and time.Results: Anaerobic exercise led to significant increases in lean body mass andstrength, while aerobic exercise induced greater fat loss. Athletes exhibited morepronounced increases in testosterone and growth hormone levels, compared tonon-athletes.Conclusions:Tailoredexerciseprograms,consideringfitnesslevelsandgoals,canoptimize body composition and hormonal health. These findings have practicalimplications for designing effective training regimens for diverse populations.
Inswing or Outswing Corner Kicks? A Meta-Analysis of Offensive Outcomes in Professional Soccer Plakias, Spyridon; Armatas, Vasilis; Giakas, Giannis
Journal of Coaching and Sports Science Vol. 4 No. 2 (2025): Journal of Coaching and Sports Science
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Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58524/jcss.v4i2.730

Abstract

Background: Although corner kicks are the most tactically analyzed set pieces in professional soccer, there is still no consensus on whether inswinging or outswinging deliveries are more effective, and no previous meta-analysis has systematically addressed this question.Aims: The study aimed to compare the offensive effectiveness of inswinging and outswinging corner kicks, specifically concerning goal conversion and the creation of final attempts, while also examining differences between domestic and international competitions.Methods: A meta-analysis was conducted using data from 12 eligible studies involving professional competitions. Binary outcomes (goal vs. no goal; final attempt vs. no attempt) were analyzed using log odds ratios under a random-effects model to account for heterogeneity. Subgroup analyses were performed based on competition type (domestic vs. international).Result: The cumulative goal conversion rate from corners was 3.09%, while the rate for final attempts was 25.61%. No statistically significant difference was found between inswinging and outswinging corners regarding goal conversion (OR = 0.99, p = 0.67). However, outswinging corners increase the probability of a final attempt (OR = 0.79, p = 0.02) compared to inswinging corners.Conclusion:  This first meta-analysis comparing corner kick delivery types shows that, while both are equally effective for scoring, outswinging corners lead to more final attempts. Coaches may prioritize outswinging deliveries to improve offensive output and reduce counterattack risk. Future studies should examine contextual factors (e.g., marking systems, delivery zones) and include defensive outcomes for a more holistic tactical understanding.
Lacrosse Player's Sprint Ability: The Relationship Between 30M Cradle Sprint and Medicine Ball Throw Maruo, Yuya
Journal of Coaching and Sports Science Vol 4, No 1 (2025): Journal of Coaching and Sports Science
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Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58524/jcss.v4i1.393

Abstract

Background: Few studies have examined the sprinting capacity of female lacrosse players compared to other field-based sports. Sprinting ability in lacrosse, particularly when players are cradling the ball, may differ from traditional sprinting, as handling the ball can affect acceleration and overall speed.Aims: This study aimed to investigate the relationship between sprinting ability and medicine ball throws in female collegiate lacrosse players. Specifically, it sought to compare sprint performance with and without cradling and examine how medicine ball throw performance correlates with sprinting ability.Methods: Twenty-two participants (19.9 ± 1.2 years) were recruited from a collegiate lacrosse team. They performed 30m and cradle sprint trials from a standing start. Additionally, participants conducted medicine ball throws with 1kg, 2kg, and 3kg weights. Sprint times were recorded for 0-10m and a total of 30m distances.Results: The time for the total 30m distance was significantly shorter in the regular 30m sprint trial than in the 30m cradle trial. The 0-10m segment was slower in the cradle sprint trial than the regular sprint trial. Faster individuals in the 30m sprint trial were associated with longer distances in the 1kg and 2kg medicine ball throws. In comparison, faster individuals in the 30m cradle sprint trial were correlated with longer distances in the 1kg, 2kg, and 3kg medicine ball throws.Conclusion: The cradle affects acceleration from a stopped position. Additionally, sprinting ability while cradling the ball is correlated with performance in the 3kg medicine ball throw, suggesting a relationship between upper-body strength and sprint performance in lacrosse.
Learning Trajectories of High-Performance Teacher-Coaches in Japanese High Schools: A Mixed-Methods Study Kuki, Seita; J. Mallett, Clifford; Mizushima, Jun; Rynne, Steven B.
Journal of Coaching and Sports Science Vol. 4 No. 2 (2025): Journal of Coaching and Sports Science
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Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58524/jcss.v4i2.634

Abstract

Background: Understanding how effective coaching impacts athlete success is crucial to understanding how high-performance teacher-coaches manage their dual teaching and coaching roles and develop their professional skills throughout their careers.Aim: This study examined the key learning sources contributing to the professional development of teacher-coaches in Japan.Methods: This study adopted a mixed-methods approach involving eight male teacher-coaches with over 20 years of successful coaching experience. Participants completed a questionnaire rated on a 7-point Likert scale regarding the importance of various learning sources throughout their careers. Additionally, semi-structured interviews were conducted to gain an in-depth understanding of their learning experiences.Results: Quantitative analysis showed that the learning sources changed across career phases: "Learning as a teacher" (20s), "On-the-job experience" (30s–50s), and "Reflection" (60s). The qualitative analysis revealed three main themes: Learning as a teacher (20s), On-the-job experience (30-50s) and Reflection (60s). These themes illustrated how the sources contributed to the development of their coaching skills—early teaching responsibilities nurtured intra- and interpersonal competencies, while later stages emphasized the cultivation of reflective practices.Conclusions: The findings contribute valuable insights into improving coach development programs, ensuring teacher-coaches ongoing growth and success in their dual roles. Coach developers should encourage teacher-coaches to foster intra- and interpersonal knowledge through teaching and various other learning opportunities.
The Relationship between Career Satisfaction and Life Satisfaction: An Investigation from the Perspective of Efficacy of Football Coaches in Türkiye Siyahtaş, Anıl; Ceviz, Ebru
Journal of Coaching and Sports Science Vol. 4 No. 2 (2025): Journal of Coaching and Sports Science
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Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58524/jcss.v4i2.563

Abstract

Background: Career and life satisfaction are critical factors influencing football coaches' well-being, performance and future. However, the role of coaching efficacy as a mediator between these two factors remains underexplored, particularly in the context of football coaching in Türkiye.Aims: The present study examines the mediating role of coaching efficacy in the relationship between football coaches' careers and life satisfaction.Methods: The research group, which adopted a quantitative approach, consists of individuals with football coaching licences in Türkiye (n=429). The parametric tests were used in the analyses, and a modern approach was adopted for the mediation analysis. Furthermore, ANOVA was applied to the analysis of differences, and the Pearson correlation test was applied to the relationship between concepts. In addition, the difference between the groups was determined by the Tukey test.Result: The age factor did not affect coaching efficacy. However, experience and license categories were found to be important factors. The structural model constructed for the research was confirmed (Δχ²/sd=1.94; RMSEA=.05; CFI=.95; GFI=.90; IFI=.94).Conclusion: The study determined that coaching efficacy mediated the relationship between coaches' career and life satisfaction. Coaching efficacy plays an important role not only for the athletes but also for their own lives. Therefore, it is recommended that football coaches give importance to professional efficacy and improve themselves to achieve career and life satisfaction.

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