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Injury patterns and risk factors in high school futsal: An observational study
Rafif Jendra Atmaja11. State University of Malang , ID2025-06-17|page 1-14AbstractBackground: Sports injuries at an early age are crucial and must be given attention.
Objectives: This study aims to analyze injury patterns, causative factors, and prevention strategies specific to high school futsal players.
Methods: The research method used was descriptive quantitative with a cross-sectional study approach. The population in this study were male students of State Senior High School 1 Ponorogo who participated in class meeting activities, with purposive sampling technique found 24 samples. Data collected by questionnaire included information on the type of injury, location of injury, causative factors, injury treatment and type of rehabilitation.
Results: The results showed that the most common injuries were cuts/abrasions (29%) and bruises (23%), most common in the lower extremities, namely knees (23%) and ankles (20%), the most common cause of injury was physical contact (54%), most injuries occurred during the second half (67%), the most common first aid given was cold compresses (51%) and the most common rehabilitation/therapy was massage (25%) and physiotherapy (21%).
Conclusions: The findings can be concluded that the most dominant type of injury experienced by students is abrasion, especially in the knee area. In addition, the main causative factors of injury are fatigue, infrastructure, and collisions between players. The results of this study indicate the urgency of implementing injury prevention programs and the importance of conducting post-injury rehabilitation, in an effort to minimize the risk of injury to support the sustainability of students' careers in sports.
APA Citation StyleAtmaja, R. J. (2025). Injury patterns and risk factors in high school futsal: An observational study. Sport, Exercise, and Injury, 1-14. https://doi.org/10.56003/sei.v1i1.513 -
Injury pattern and risk factors in grassroots football: A study of 10-year-old athletes
Leo Ferdinand1, Yulingga Nanda Hanief2, Randy M. Manimtim31. State University of Malang , ID2. State University of Malang , ID3. Batangas State University TNEU , PH2025-06-17|page 27-39AbstractBackground: Young football players, especially in grassroots competitions, are highly susceptible to injury due to physical contact, fatigue, and underdeveloped motor skills, making injury prevention a critical aspect of early childhood sports.
Objectives: This study aims to analyze the types, causes, and needs for injury prevention in 10-year-old football players.
Methods: A descriptive quantitative design was used with the survey method. Data was collected through a structured questionnaire distributed to players injured during the competition. A purposive sampling technique was applied with inclusion criteria: (1) players injured during the match and (2) willing to participate. The final sample consisted of 25 athletes.
Results: A total of 25 injury incidents were recorded. The most common type of injury was contusion, reaching 13 cases (52%), followed by muscle cramps (20%) and sprains (8%). Most injuries (64%) occurred in the lower extremities, especially the knee and thigh. Injuries predominantly occurred in the second half of matches (60%), with 88% caused by physical contact with an opponent. In the absence of medical personnel, coaches often found themselves in the role of first responders, a challenging position that requires adequate training and support. Many players continued to play despite their injuries, indicating a need for improved injury management.
Conclusions: The study concluded that football injuries in children generally occur in the lower extremities, with bruising being the most dominant type. Player-to-player collisions caused most injuries, and many players could continue the match. This shows the importance of prevention, education, and follow-up for developing the sport of football.
APA Citation StyleFerdinand, L. , Hanief, Y. N. , & Manimtim, R. M. (2025). Injury pattern and risk factors in grassroots football: A study of 10-year-old athletes. Sport, Exercise, and Injury, 27-39. https://doi.org/10.56003/sei.v1i1.512 -
Analysis of strategy and implementation of head injury prevention programs: A case study of boxers at HAN Academy Malang
Padantya Devin Sugito11. State University of Malang , ID2026-01-05|page 99-110AbstractBackground: Boxing is a high-risk combat sport with a high probability of head injuries, so effective prevention strategies are essential for athlete safety. However, empirical evidence on the implementation of head injury prevention programs at the training academy level is still limited.
Objectives: This study aims to explore strategies and the practical implementation of head injury prevention at the HAN Boxing Academy, Malang.
Methods: A qualitative case study design was used with purposive sampling. Four participants (one coach and three active athletes) were recruited. Data were collected through document review, direct observation, and semi-structured interviews, which consisted of 15 guiding questions. Data were analyzed using a thematic analysis approach, which involved data reduction, data presentation, and conclusion. Methodological triangulation was applied to enhance credibility.
Results: Three main themes emerged: (1) systematic emphasis on basic defensive techniques to minimize head collisions, (2) mandatory and consistent use of head protection during training sessions, and (3) active supervision by coaches combined with a gradual rehabilitation protocol, including competition restrictions for up to six months after a serious head injury. Participants considered head protection effective in reducing the severity of impacts, although the residual risk of head injury was still acknowledged.
Conclusions: Head injury prevention in academies is implemented through an integrated approach that combines technical skill development, the use of protective equipment, and continuous monitoring. To strengthen its effectiveness, it is recommended that structured injury prevention protocols be implemented and closer collaboration with medical professionals be fostered.APA Citation StyleSugito, P. D. (2026). Analysis of strategy and implementation of head injury prevention programs: A case study of boxers at HAN Academy Malang. Sport, Exercise, and Injury, 99-110. https://doi.org/10.56003/sei.v1i2.646 -
Injury prevalence among cricket athletes in East Java: A cross-sectional study
Ali Ridho Fadlurrahman Najib11. State University of Malang , ID2025-06-17|page 40-49AbstractBackground: Cricket has a risk of injury that needs to be considered, especially for athletes in East Java. This study aims to understand the prevalence of injuries in East Java cricket athletes, including the type, location, cause, time of occurrence, and treatment, as an effort to prevent and improve athlete performance.
Objectives: This study aims to determine the prevalence, types, causes, timing, and management of injuries among cricket athletes in East Java.
Methods: This study uses non-experimental descriptive quantitative methods, with a cross-sectional study and total sampling technique. 25 Indonesian East Java Province Cricket athletes with an age of 22.68+2.32, height of 163.2+6.78, and weight of 60.32+10.06, consisting of 13 male athletes and 12 female athletes, were involved in this study. This research instrument used a questionnaire to collect data. Data were analyzed using percentage analysis.
Results: The results showed that abrasions (36%) and muscle cramps (20%) were the most frequent injuries, especially affecting the lower extremities (56%). Overtraining (52%) was the leading cause, and injuries mainly occurred during training (52%). The RICE method was the most frequently applied treatment (60%).
Conclusions: This study highlights the need for structured training programs and preventive strategies to reduce the incidence of injuries.
APA Citation StyleNajib, A. R. F. (2025). Injury prevalence among cricket athletes in East Java: A cross-sectional study. Sport, Exercise, and Injury, 40-49. https://doi.org/10.56003/sei.v1i1.554 -
Eccentric hamstring strength profile and limb asymmetry in sub-elite female taekwondo athletes: Implications for injury prevention
Christina Septya Dewi1, Pudjijuniarto Pudjijuniarto2, Awang Firmansyah3, Roy Januardi Irawan41. Universitas Negeri Surabaya , ID2. Universitas Negeri Surabaya , ID3. Universitas Negeri Surabaya , ID4. Universitas Negeri Surabaya , ID2025-06-17|page 70-79AbstractBackground: Taekwondo is a physical contact sport requiring quick reactions and explosive movements such as kicking, which depend heavily on hamstring muscle strength to maintain performance and reduce injury risk.
Objectives: This study aims to profile the eccentric hamstring strength and asymmetry in sub-elite female taekwondo athletes in East Java.
Methods: This was a quantitative descriptive study with a cross-sectional approach. A total of 22 female athletes with regional competition experience and no lower limb injuries were selected using purposive sampling. Data were collected using the NordBord by Vald Performance, a reliable tool for measuring eccentric hamstring strength and asymmetry. Descriptive statistics analyzed the mean, standard deviation, minimum, maximum, and strength percentage relative to normative values.
Results: The athletes had an average age of 18.86±2.05 years, body mass of 57.45±8.90 kg, height of 160.68±6.72 cm, and BMI of24.33 ±2.51. Eccentric hamstring strength was 89.6% in the left leg, 85% in the right leg, and 87.2% overall, indicating the need for improvement.
Conclusions: The eccentric hamstring strength of both legs needs to be increased by approximately 12.8% while maintaining the current low asymmetry level to support muscle balance. Targeted hamstring strengthening exercises are recommended to enhance performance and reduce injury risk. This study is limited to female athletes; further research should include broader populations and variables.
APA Citation StyleDewi, C. S. , Pudjijuniarto, P. , Firmansyah, A. , & Irawan, R. J. (2025). Eccentric hamstring strength profile and limb asymmetry in sub-elite female taekwondo athletes: Implications for injury prevention. Sport, Exercise, and Injury, 70-79. https://doi.org/10.56003/sei.v1i1.574 -
Differential responses to seasonal soccer training in U-15 and U-17 players: Body composition, strength, agility, and effect size analysis
Rick Stoop1, Georgios Georgiadis2, Iván González-García31. Football Club Utrecht, Herculesplein 241, 3584 AA Utrecht , NL2. Department of Nutrition and Movement Sciences, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University , NL3. Faculty of Health Sciences, Universidad Isabel I, Burgos , ES2026-06-09|page 48-63AbstractBackground: Training programs during adolescence play a crucial role in optimizing body composition and physical performance in youth soccer players. However, differences in training adaptations between age groups, particularly in agility performance, remain insufficiently explored.
Objectives: This study aimed to examine the effects of a seasonal soccer training program on body composition, strength, and agility in U-15 and U-17 soccer players.
Methods: A pre–post experimental design was applied to 28 male youth soccer players (U-15: n = 15; U-17: n = 13) competing in a football league in the Netherlands. Participants completed a 16-week training program consisting of technical, conditioning, tactical, and mental components. Body composition (height, body mass, lean mass, fat mass), jump performance (SJ, CMJ, CMJmax), isokinetic strength (knee flexion and extension peak torque), and agility (Illinois Agility Test) were assessed before and after the intervention. Data were analyzed using repeated-measures analysis of variance (ANOVA) and effect sizes were calculated using Cohen’s d.
Results: In the U-15 group, significant improvements were observed only in knee flexion (70.2 ± 15.8 vs. 95.4 ± 23.5 Nm, p = 0.006, d = 1.25) and extension peak torque (75.1 ± 20.4 vs. 96.8 ± 18.9 Nm, p = 0.012, d = 1.10). In contrast, U-17 players demonstrated significant increases in lean mass (50.2 ± 3.1% vs. 53.4 ± 2.3%, p = 0.021), reductions in fat mass (11.0 ± 2.9% vs. 8.7 ± 2.5%, p = 0.037), improvements in agility performance (16.2 ± 0.7 vs. 15.4 ± 0.65 s, p = 0.008, d = 1.18), and knee flexion peak torque (78.4 ± 26.5 vs. 118.3 ± 28.7 Nm, p = 0.003, d = 1.45), together with significant gains in jump performance (p < 0.05). Most significant changes in the U-17 group were accompanied by large effect sizes (d = 0.85–1.45).
Conclusions: The training program elicited greater physiological and performance adaptations in U-17 compared to U-15 players. The greater adaptations observed in the U-17 group may be partially influenced by differences in biological maturation; however, maturity status was not directly assessed in the present study.
APA Citation StyleStoop, R. , Georgiadis, G. , & González-García, I. (2026). Differential responses to seasonal soccer training in U-15 and U-17 players: Body composition, strength, agility, and effect size analysis. Sport, Exercise, and Injury, 48-63. https://doi.org/10.56003/sei.v2i1.735 -
Associations and predictive value of isometric strength, isokinetic strength, and anaerobic power for 100-m freestyle performance in young swimmers
Zied Abbes1, Rabeh Labbadi2, Faten Salhi31. Physical Education Department, College of Education, Qatar University , QA2. Higher Institute of Sports and Physical Education of Kef, University of Jendouba , TN3. Higher Institute of Sports and Physical Education of Kef, University of Jendouba , TN2026-06-02|page 21-34AbstractBackground: Multiple physical and physiological factors influence sprint swimming performance; however, the relative contributions of isometric strength, isokinetic strength, and anaerobic power to 100-m freestyle performance in young swimmers remain unclear.
Objectives: This study investigated the associations and predictive contributions of physical characteristics, isometric and isokinetic upper-body strength, and anaerobic power to 100-m freestyle swimming performance in young swimmers.
Methods: A cross-sectional study was conducted with 21 male swimmers aged 10–13 years, selected purposively. Eligibility criteria included a minimum of three years of structured swimming training, regular participation in 3–5 training sessions per week, and absence of musculoskeletal injuries. Upper-body strength was assessed using isometric and isokinetic dynamometry (60°/s and 180°/s), while anaerobic power was measured using the 30-s Wingate Anaerobic Test. Swimming performance was evaluated using a 100-m freestyle time trial. Pearson correlation and linear regression analyses were performed after verification of regression assumptions.
Results: Swimming speed was significantly correlated with isometric elbow flexor strength (r = .49, p < .05), isokinetic flexor strength at 60°/s (r = .41, p < .05), and Wingate peak power (r = .37, p < .05). Simple linear regression analysis identified isometric elbow flexor strength as the strongest predictor of swimming performance (B = 0.005, p = .026, R² = .235), followed by isokinetic flexor strength at 60°/s (B = 0.004, p = .038, R² = .210) and Wingate peak power (B = 0.001, p = .031, R² = .198). No significant associations were observed for isokinetic strength at 180°/s.
Conclusions: Upper-body muscular strength, particularly isometric elbow flexor strength, is a significant determinant of 100-m freestyle swimming performance in young swimmers. These findings highlight the importance of maximal force-generating capacity, alongside anaerobic power development, for sprint swimming performance.
APA Citation StyleAbbes, Z. , Labbadi, R. , & Salhi, F. (2026). Associations and predictive value of isometric strength, isokinetic strength, and anaerobic power for 100-m freestyle performance in young swimmers. Sport, Exercise, and Injury, 21-34. https://doi.org/10.56003/sei.v2i1.726 -
Gender differences in bilateral and ipsilateral lower limb strength asymmetry among football players
Randy R. Manimtim1, Eissel Ronquillo21. Office of Sports Development Program, Batangas State University The National Engineering University Lipa Campus , PH2. Department of Physical Education, School of Education, Holy Angel University , PH2026-06-02|page 1-10AbstractBackground: Lower limb muscle strength asymmetry is a significant factor that can impact playing ability and increase the risk of injury in soccer players. Differences in leg use and the specific movement requirements of a sport can lead to strength imbalances, either on both sides of the body or on the same side. Lower limb muscle strength asymmetry, particularly bilateral and ipsilateral strength asymmetry, is a significant factor influencing performance and increasing injury risk in football players. Differences in limb dominance and sport-specific movement demands can lead to strength imbalances.
Objectives: This study aimed to compare bilateral and ipsilateral lower limb strength asymmetry between male and female football players.
Methods: A cross-sectional study was conducted involving 50 amateur football players (26 males and 24 females; aged 18–21 years). Isokinetic strength testing of knee extensors and flexors was performed at 60°/s. Bilateral asymmetry was calculated based on peak torque differences between limbs, while ipsilateral asymmetry was assessed using the hamstring-to-quadriceps (H/Q) ratio. Statistical analyses included the Mann–Whitney U test and independent t-test (p < 0.05).
Results: Significant sex differences were found in bilateral strength asymmetry for both quadriceps (7.21 ± 4.04% vs 5.04 ± 3.13%, p = 0.02) and hamstrings (9.13 ± 5.15% vs 5.06 ± 4.04%, p = 0.01), with males showing greater asymmetry. Female athletes demonstrated values closer to the recommended asymmetry threshold (≤10–15%). No significant differences were observed in ipsilateral strength asymmetry (H/Q ratio) between groups (p > 0.05).
Conclusions: Bilateral strength asymmetry differs by sex, with male athletes exhibiting higher imbalance, while ipsilateral strength balance is comparable between groups. These findings highlight the importance of monitoring individual strength asymmetry to inform targeted training strategies, reduce injury risk, and optimize performance in football players.
APA Citation StyleManimtim, R. R. , & Ronquillo, E. (2026). Gender differences in bilateral and ipsilateral lower limb strength asymmetry among football players. Sport, Exercise, and Injury, 1-10. https://doi.org/10.56003/sei.v2i1.681 -
The effects of the FIFA 11+ program on lower limb functional outcomes: A systematic review
Yulingga Nanda Hanief1, Italo Sannicandro2, Raja Mohammed Firhad Raja Azidin31. State University of Malang , ID2. Clinical and Experimental Medicine Department, University of Foggia , IT3. Faculty of Sports Science and Recreation, Universiti Teknologi MARA , MY2025-12-30|page 122-138AbstractBackground: The FIFA 11+ program has been proven effective in preventing soccer injuries, but evidence regarding its impact on lower extremity functional outcomes is still scattered and reported heterogeneously.
Objectives: This systematic review aims to synthesize evidence regarding the effects of the FIFA 11+ program on lower extremity functional outcomes—including ROM, knee extension, internal and external hip rotation, and hamstring muscle strength—in athletes.
Methods: This systematic review was prospectively registered in PROSPERO (CRD420251147261) and conducted in accordance with PRISMA 2020 guidelines. A total of 14 studies involving athletes or physically active individuals met the inclusion criteria. Functional outcomes were measured using various instruments, primarily an isokinetic dynamometer for muscle strength and a goniometer for ROM measurement. The methodological quality of the studies was assessed using the Newcastle–Ottawa Scale. Due to substantial heterogeneity in study design, measurement instruments, intervention protocols, and reporting formats, a quantitative meta-analysis was not performed, and the data were synthesized using a qualitative narrative approach.
Results: Most studies (approximately 70–80%) reported an increase in hamstring muscle strength after the FIFA 11+ intervention, particularly in concentric and eccentric isokinetic measurements. Improvements in ROM and functional outcomes of the knee and hip were also reported, although results varied between studies. Evidence related to knee extension and hip rotation shows lower consistency compared to hamstring strength.
Conclusions: The FIFA 11+ program shows potential functional benefits beyond injury prevention, particularly in improving hamstring muscle strength and several aspects of joint mobility.APA Citation StyleHanief, Y. N. , Sannicandro, I. , & Azidin, R. M. F. R. (2025). The effects of the FIFA 11+ program on lower limb functional outcomes: A systematic review. Sport, Exercise, and Injury, 122-138. https://doi.org/10.56003/sei.v1i2.670 -
Analysis of dominant physical factors in volleyball skills: confirmatory analysis of the Bahana Muda volleyball team
Mahesa Dwi Chandra11. State University of Malang , ID2026-01-05|page 111-121AbstractBackground: Physical condition is an important determinant of volleyball skill performance, but few studies have empirically tested the structure of its dominant factors using a confirmatory approach.
Objectives: This study aims to identify the dominant physical condition factors that influence the playing skills of Bahana Muda Club volleyball athletes using Confirmatory Factor Analysis (CFA).
Methods: This study used a quantitative descriptive design. The sample consisted of 20 male volleyball athletes from the Bahana Muda Club who were selected through purposive sampling. The physical condition variables measured included speed (30-meter run), endurance (beep test), arm muscle strength (push-ups), abdominal muscle strength (sit-ups), leg muscle power (vertical jump), and agility (shuttle run). The analysis was conducted through an initial exploratory analysis and continued with CFA using IBM SPSS AMOS version 26. The goodness-of-fit model was evaluated using the CFI, TLI, and RMSEA indices.
Results: The CFA results show that leg muscle power (λ = 0.791), arm muscle strength (λ = 0.742), endurance (λ = 0.732), and agility (λ = 0.606) have significant factor loadings on volleyball skills (p < 0.05), while abdominal muscle speed and strength did not show significant contributions. The CFA model showed good data fit (CFI = 0.986; TLI = 0.978; RMSEA = 0.050).
Conclusions: Leg muscle power, arm muscle strength, endurance, and agility are the dominant physical factors in volleyball skills. Training programs should prioritize these components, and further research should involve larger samples and cross-clubs.APA Citation StyleChandra, M. D. (2026). Analysis of dominant physical factors in volleyball skills: confirmatory analysis of the Bahana Muda volleyball team. Sport, Exercise, and Injury, 111-121. https://doi.org/10.56003/sei.v1i2.642 -
Analysis of sports injuries in the implementation of the new 2023 regulations for the sport of Pencak Silat in the 17-35 age category
Muhammad Miqdam Afis11. State University of Malang , ID2026-01-05|page 80-89AbstractBackground: The changes to the 2022/2023 Pencak Silat competition rules established by PESILAT are aimed at international standardization, but these changes have the potential to affect patterns and injury risks for athletes in competition categories involving intense physical contact.
Objectives: This study aims to describe the types, frequency, and body parts injured, as well as athletes' perceptions of the impact of the implementation of the new 2023 regulations on injuries among 17-35-year-old competitive Pencak Silat athletes in Malang Regency.
Methods: The study used a quantitative descriptive design with a cross-sectional approach. The sample consisted of 30 competitive Pencak Silat athletes (aged 17–35 years) selected using purposive sampling. Data were collected in March 2025 using a questionnaire distributed online via Google Forms. Data analysis was performed descriptively using frequencies and percentages, as well as simple comparative analysis based on gender.
Results: Of the 30 respondents, the most commonly reported injuries were sprains (22.0%) and bruises (19.5%). The body parts most frequently injured were the lower extremities (feet and ankles, 20.7%), followed by the hands (14.1%). The most dominant factors causing injury were lack of warm-up (27.5%) and collision/physical contact (26.4%). A total of 64% of athletes (n = 19) stated that the implementation of the new 2023 regulations had a significant effect on the occurrence of injuries. Severe injuries such as fractures, ACL, and MCL were only found in male athletes with a low percentage, while minor injuries (bruises and sprains) were more commonly reported in female athletes.
Conclusions: Soft tissue injuries, particularly sprains and bruises, are the most common types of injuries experienced by competitive Pencak Silat athletes, with injuries predominantly occurring in the lower extremities.APA Citation StyleAfis, M. M. (2026). Analysis of sports injuries in the implementation of the new 2023 regulations for the sport of Pencak Silat in the 17-35 age category. Sport, Exercise, and Injury, 80-89. https://doi.org/10.56003/sei.v1i2.641
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