Journal of Sports Science and Health

THE EFFECTS OF COMBINED ACCENTUATED ECCENTRIC LOADING TRAINING AND REST REDISTRIBUTION ON LEG MUSCULAR PERFORMANCE IN MALE SOCCER PLAYERS

Khanchit Mulasiwa — 2026-08-27

Background
Currently, eccentric overload training a form of resistance training that emphasizes the lengthening phase of the muscle, thereby increasing force production during the subsequent shortening (concentric) phase has been found to improve muscle strength, muscle power, and muscle contraction velocity more effectively than traditional resistance training (Cook et al., 2013; Douglas et al., 2017). However, continuous eccentric overload training at high intensities leads to muscle fatigue. Consequently, implementing intra-set rest intervals allows the muscles to exert maximum force and mitigates the fatigue caused by eccentric overload training (Chae et al., 2024)

Purpose
The purpose of this study was to compare effects of combined accentuated eccentric loading training and rest redistribution on leg muscular performance in male soccer player.

Method
Twenty male soccer players, aged 18-25 years from Thailand National Sports University, Angthong campus participated in this study. Before the experiment, all subjects underwent a resistance training program at a load of 60% 1RM, twice a week for two weeks for familiarization. Thereafter, the participants were randomly assigned into 2 groups matched by 1RM relative back squat strength. The first experimental group (n=10), (AEL+RR), performed a combined accentuated eccentric loading training and rest redistribution program consisted of 10 repetitions at a load of eccentric/concentric was 110/60 % 1RM by accentuated eccentric loading in the 1st, 3rd, 5th, 7th and 9th combined with rest redistribution 15 seconds and 5 minutes rest between set with 3 sets in first and second week, 4 sets in third and fourth week and 5 sets in fifth and sixth week. The second was control group (n=10), (CON), continued their regular soccer training program. AEL+RR group continued to train twice a week for a total of 6 weeks. Peak power, peak ground reaction force, rate of force development, peak velocity, and relative strength were measured before and after 6 weeks of training. Data were expressed as means ± S.D. and were analyzed using independent sample t-test and paired sample t-test. The statistically significant was set at p-value < 0.05

Results
The results demonstrated that after 6 weeks of training, the AEL+RR presented significant increases in peak power, peak ground reaction force, rate of force development, peak velocity, and relative strength (p<0.05), while CON showed improvements in peak power, peak ground reaction force, rate of force development, peak velocity, and relative strength. Interestingly, The AEL+RR revealed greater improvement in peak power, peak ground reaction force, peak velocity, and relative strength compared to CON group.

Conclusion
Our results demonstrated that combined accentuated eccentric loading training and rest redistribution have favorable effects on peak power, peak ground reaction force, rate of force development, peak velocity, and relative strength, and could therefore be used as an adjunctive exercise program for improving leg muscular performance in male soccer player.

INJURY SURVEY OF ATHLETES AT THE NATIONAL SPORTS UNIVERSITY CHON BURI CAMPUS TO PARTICIPATE IN THE THAILAND NATIONAL UNIVERSITY SPORTS COMPETITION “THE 48th PHYSICAL EDUCATION GAMES”

Nutdanai Jaroensukwimon — 2026-08-27

Background
In competitions structured as multi-sport games, events are held on a daily basis, which places considerable strain on athletes' limited capacity for rest and recovery. Consequently, the prevention and management of injuries are of critical importance to competitive outcomes. To ensure effective injury prevention and care, it is essential for athletes, coaches, and other relevant stakeholders to study the nature of athletes' injuries, as such information serves as a vital foundation for team preparedness and for the appropriate planning of injury prevention strategies. This knowledge is also instrumental in supporting the care, prevention, and treatment processes necessary to help athletes perform to their fullest potential.

Purpose
This study aimed to survey the injuries sustained by athletes from the National Sports University of Thailand, Chonburi Campus, who participated in the 48th National University Games (2025), held at the National Sports University, Sukhothai Campus, and to examine the demographic factors and injury types associated with these injuries. The sample consisted of athletes from the National Sports University of Thailand, Chonburi Campus, who sustained injuries or illness during their participation in the competition.

Methods
The research instrument was an injury survey developed by the researcher specifically for athletes from the National Sports University of Thailand, Chonburi Campus, who competed in the 48th National University Games (2025). The instrument demonstrated a reliability coefficient of 0.80. Data were analyzed using percentage distribution and the chi-square (χ²) statistic, with a significance level set at 0.05.

Results
Among the total sample of 54 injured athletes, the sport category with the highest incidence of injury was semi-contact sports (37.2%). The body part most frequently injured was the ankle (35.5%), and the most common type of injury was muscle soreness (42.9%). Regarding therapeutic care received within the first 48 hours following injury, the most commonly applied method was basic first aid using the RICE principle (39.1%). In examining the relationship between the independent and dependent variables, it was found that sex, as an independent variable, had no significant effect on athletes' injury outcomes among the sample of 54 athletes who sustained injury or illness.

Conclusion
The injuries most commonly sustained by athletes from the National Sports University of Thailand, Chonburi Campus, occurred predominantly in semi-contact sports. The body part most frequently affected was the ankle, and the most commonly reported symptom was muscle soreness. The most frequently used method of therapeutic care within the first 48 hours after injury was basic first aid following the RICE principle, among other approaches.

THE EFFECTS OF FUNCTIONAL TRAINING WITH BLOOD FLOW RESTRICTION ON BODY COMPOSITION IN OLDER ADULTS

Sirasit Sresakdinakorn — 2026-08-28

Background
Older adults experience age-related physiological declines across various body systems, notably the loss of muscle mass, reduced metabolic rate, and increased fat mass, which are linked to a higher risk of non-communicable diseases. While previous research demonstrates that resistance training effectively improves body composition, high-intensity training may increase the risk of injury in older adults. Therefore, functional resistance training combined with blood flow restriction (BFR) can stimulate muscle growth even with low-load resistance. However, research on this modality in older adults remains limited. Thus, this study aims to explore a safe and effective approach to improving body composition in this population.

Purpose
This study aimed to investigate the effects of functional resistance training combined with blood flow restriction on body composition in older adults.

Methods
Thirty-two elderly participants (65.92±3.67 years old) were divided into two groups: a control group (CON, n=16) and a functional resistance training with blood flow restriction group (FT-BFR, n=16). The CON group were maintaining daily routine activities. FT-BFR group were perform 8-week functional resistance training combined with blood flow restriction program consisted of 45-minute sessions, 3 days per week. The elastic band tightness was set at 40% arterial occlusion pressure (AOP). Body composition and physiological variables were assessed pre- and post-intervention. Statistical analyses included mixed-effects models to examine main effects and interactions between time and group, independent samples t-tests to compare percentage changes between groups, and effect size (ES) calculations to estimate the magnitude of differences.

Results
After 8 weeks, the FT-BFR group showed a significant increase in fat-free mass (2.08 ± 2.22, p=0.027) and significant decreases in body fat percentage (-1.92 ± 2.92, p=0.018) and resting heart rate (71.12 ± 4.96, p=0.013) when compared to the CON group.

Conclusion
Functional resistance training combined with blood flow restriction is a safe and effective method for improving body composition in older adults, offering a viable exercise alternative for this population.

SCHOOL GUIDELINES FOR PROMOTING PHYSICAL ACTIVITY AND REDUCING SEDENTARY BEHAVIOR OF SECONDARY SCHOOL STUDENTS

Peerawat Choncharoen — 2026-08-28

Background
The declining physical activity among Thai students, in contrast to their increasing screen time behavior, has adversely affected their well-being. Schools are therefore vital strategic settings for creating an ecosystem conducive to physical activity.

Purpose
The purpose of this study was to (1) examine the state of physical activity promotion, (2) study sedentary behavior, and (3) synthesize guidelines for promoting physical activity and reducing sedentary behavior among secondary school students.

Methods
This study sampled 226 secondary school students from a school in Nonthaburi province. The school was selected through purposive sampling, and students were recruited via multistage stratified cluster sampling. The instrument was a 19-item questionnaire on physical activity promotion and sedentary behavior across 4 parts, with content validity (IOC) of 1.00 and reliability (Cronbach's alpha) of 0.92 for the physical activity promotion subscale and 0.02 for the sedentary behavior subscale; sedentary items were therefore reported individually. Quantitative data were analyzed using descriptive statistics (M, SD), and qualitative data using content analysis.

Results
The state of physical activity promotion in the school was at a moderate level (M=3.30, SD=1.06), with sports fields and swimming pools being the most perceived resources. Sedentary behavior was reported item by item: screen time was the highest risk behavior (M=3.68), while among protective behaviors, taking breaks was high (M=3.27) but engaging in physical activity was the lowest (M=2.56). Students' demands consisted of four issues: promoting diverse activities, providing class breaks, increasing sports competitions, and developing spaces and equipment.

Conclusion
The findings suggest that schools should prioritize enhancing physical activity promotion to be more integrated into students' daily routines, alongside reducing sedentary behavior. These four suggestions reflected by students can be applied to inform school-based health promotion guidelines.

THAI FOLK GAMES IN THE TRANSITIONAL ERA: FROM TRADITIONAL GROUNDS TO GLOBAL ARENAS

Tachapon Tongterm — 2026-08-23

Thai traditional plays constitute an important form of intangible cultural heritage that reflects the wisdom, ways of life, and cultural identity of Thai society. Despite their profound social and cultural value, they are increasingly at risk of fading from everyday Thai life due to social change, technological advancement, and the growing prominence of digital recreation. This article aimed to: (1) examine the transition from traditional plays to international sports through case studies of Kho Kho, Kabaddi, and dodgeball; (2) analyze the structural and functional connections between selected Thai traditional plays, namely Toei, Tee Jap (Bak-Ee), and Kwang Ling, and the three international sports; and (3) propose development pathways for Thai traditional plays through document analysis and literature synthesis. The findings indicate that the success of international sports results not merely from the inherent characteristics of particular activities, but from structural arrangements that integrate standardized rules, institutional strength, and sustainable economic models. At the same time, Thai traditional plays such as Toei, Tee Jap, and Kwang Ling demonstrate functional potential comparable to the selected international sports in terms of game mechanisms, relevant physical fitness components, and movement skills. However, their development remains constrained by limited institutional mechanisms and discontinuous support. Therefore, the development of Thai traditional plays should begin with an assessment of the potential and suitability of each activity by systematically considering physical, social, cultural, safety, and community-readiness dimensions. This process should include the establishment of appropriate rules and standards, sustainable institutional mechanisms, and alignment with soft power strategies. Not all Thai traditional plays need to be developed into international cultural sports. Rather, development pathways should be tailored to the potential of each activity, including use as learning activities, health-promoting recreational activities, intergenerational programs, cultural tourism resources, or cultural sports where appropriate. Such an approach may help sustain Thai traditional plays as living heritage while generating recreational, social, cultural, and economic value appropriate to contemporary Thai society.

THAI CLASSICAL DANCE AS A CULTURALLY BASED EXERCISE FOR HEALTHY AGING IN THAI SOCIETY

Sonchai Ponlasen — 2026-08-23

The transition to an aging society in Thailand has heightened the importance of health promotion and the prevention of physical and cognitive decline among older adults. Thai classical dance, a form of cultural heritage characterized by integrated physical movement, can be adapted as an appropriate form of exercise for older adults. This narrative review aims to synthesize the current body of knowledge and critically examine the concepts, roles, and empirical evidence supporting Thai classical dance as a culturally relevant intervention for promoting healthy aging. Relevant literature was systematically identified through searches of PubMed, Scopus, Web of Science, Google Scholar, and Thai-Journal Online system supplemented by additional peer-reviewed publications and related documents in both Thai and English between 1998–2025. The discussion encompasses multiple domains, including physical fitness, cardiovascular function, respiratory function, cognitive function, and psychological well-being, as well as practical approaches for implementation within the Thai social context. The review found that Thai classical dance is a culturally based physical activity integrating whole-body movement, rhythmic music, motor learning, and social interaction. Evidence from previous studies suggest that Thai classical dance training at 6 weeks can significantly improve physical fitness, reduce fall risk from 35% to 8%. Specifically, Thai classical dance training at 12 weeks improved Berg Balance Scale scores (52 to 55) and reduced Timed Up and Go time (8.18 to 6.26 s). In addition, Thai classical dance has been shown to enhance cognitive function and improve quality of life among older adults. Therefore, promoting Thai classical dance represents a promising and sustainable approach for enhancing the overall well-being of the aging population in Thailand. Nevertheless, further well-designed randomized controlled trials with long-term follow-up are warranted to confirm its effectiveness and to elucidate the underlying physiological mechanisms.

INTERGENERATIONAL ACTIVITIES: THE COMMUNITY DEVELOPMENT CONCEPT IN AGING SOCIETY

Uraiwan Kamawatana — 2026-08-26

Intergenerational activities refer to purposeful activities and initiatives that promote interaction, experience exchange, and mutual learning between individuals of different age groups, particularly children and older adults. These activities are grounded in social learning theory, activity theory, social capital theory and lifelong learning concepts, which emphasize that cross-generational interactions enhance social, emotional, physical and cognitive development across all age groups and leads to ideal community that suit for aging society. This article presents the meaning, theories, historical development and evolution of intergenerational activities, which gained significant attention during the 1960s-1970s in the United States and Europe as societies began confronting issues of age segregation and changing family structures. The impacts of intergenerational activities are supported by substantial empirical evidence across multiple dimensions. For older adults, these activities reduce depression, enhance self-worth, slow cognitive decline, and promote physical activity. Children and youth benefit through improved emotional and social development, acquisition of values and wisdom, and development of positive attitudes toward older people that will fostering trust and building a bridge of connection across generations who rarely interact in their daily lives. Research from various countries, including Linking Generations Northern Ireland, Experience Corps in the United States, and Intergenerational Schools in Japan, demonstrates positive outcomes for many dimensions of holistic health among participants.

Current and future trends in intergenerational activities show continued expansion, particularly within the context of aging societies and the use of digital technology as a bridging medium. Public policies in many countries are beginning to integrate intergenerational activities into education, healthcare, and social welfare systems. Promoting these activities represents a crucial strategy for creating societies with enhanced wellbeing and quality of life for all ages.