A227: Eliminate or Evolve: Digital Transformation of Paris 2024 Olympics Under Olympic AI Agenda

The International Olympic Committee (IOC) has been promoting sports digitalization since the early 2000s, with the Olympic Agenda 2020 and the Olympic AI Agenda in 2024 providing strategic frameworks for this transformation. This paper examines how digital and AI technologies were applied at the 2024 Paris Olympics, the first Games guided by the exploration of impact on the Olympic movement and global sports landscape. Method: Using literature reviews and case studies from academic platforms like CNKI, WanFang, and Web of Science, this study analyzes digital transformation examples at the Paris 2024 Olympic Games. AI empowering the Olympics under the Agenda has been showcased to varying degrees at the Paris 2024 Olympic Games: 1) Precision—Modernizing Athlete Selection: AI aids talent identification, boosting accuracy and reducing resource waste, crucial for less developed countries. Intel, the 2024 Paris Olympics\u27 AI partner, piloted its 3DAT (3D Athlete Tracking) app in Senegal, assessing 1,000+ teenagers and selecting 48 for the National Olympic Committee\u27s program. 2) Innovation—Digitalizing Sports Training: Athletes are central to the Olympics. AI drives training digitization, improving on-site and off-site preparations. The US and Australian swim teams use AI motion capture to analyze movements and suggest improvements. China\u27s diving team employs an AI-assisted training system that interprets complex instructions, scores in real enhances technique mastery. 3) Efficiency—Standardizing Event Organization: Sports events are dynamic, requiring efficient coordination and precise judgments. This Olympics features AI-assisted officiating like the Judging Support System (JSS), computer vision, and VAR for fairer decisions in gymnastics, beach volleyball, and soccer. WADA\u27s AI-driven Athlete Biological Passport (ABP) improves doping detection, ensuring fairness. 4) Immersion—Personalizing the Viewing Experience: Digital tech enhances broadcasting, bringing the Olympics closer to viewers. Alibaba Cloud\u27s multi-angle replay, AI data analysis, and multilingual translation break language barriers, revealing deeper tactical insights. Google AI enriches user interaction with customized content, summaries, and augmented broadcasts. The Paris Olympics demonstrated digital technology\u27s significant impact on sports evolution. However, ethical and legal concerns arise due to the sports industry\u27s autonomy. To promote sustainable digital sports development, it is crucial for the IOC to maintain leadership in digital transformation, prioritize human-centered technology, and implement legislative regulations to balance progress with well-being

A042: Research on the PE System of Learning, Practicing, and Competing from the System Theory Perspective

Exploring physical education courses that promote students\u27 physical health and the learning, practicing, and competing system is a topic of concern for physical education researchers. Currently, research on the topic mainly focuses on the student object aspect, and there is a lack of research on the subject aspect. This study is based on system and group dynamics theory, optimizing the construction of a learning, practicing, and competing physical education system, aiming to enrich the physical education and training mode in universities and promote the development of students\u27 physical health. Method: This study adopts the logical analysis method to systematically analyze the overall, interrelated, hierarchical, and dynamic characteristics of the learning, practicing, and competing physical education system. The case analysis method takes Northwestern Polytechnical University as a case study for analysis. Based on system theory, there exists a systemic and interactive relationship between physical education and the “five educations” integration of morality, intelligence, aesthetics, and labor; Within the physical education system, there are multiple departments, personnel, and levels of characteristics such as student affiliation, student work management, and student sports training in the subject aspect, while there are ontological attributes such as different sports needs and physical conditions of students in the object aspect; Based on the theory of group dynamics, this study explore the characteristics of different subjects and constructs a physical education system that is suitable for the collaborative development of learning, practicing, and competing in universities, taking into account multiple dimensions such as system, organization, content, form, and evaluation, in accordance with the objective attributes of students; Through the analysis of five years of physical education cases at Northwestern Polytechnical University, the compliance rate of students\u27 physical health has increased from 88.03% to 97.63%. The five-dimensional collaborative learning, practicing, and competing physical education system has high scientific, systematicity, and operability. Integrity and interactivity are the foundation for building a physical education system in the “five educations” integration of universities. Based on the characteristics of the internal subject and object of the physical education system, the optimized and constructed multi-dimensional collaborative development system of learning, practicing, and competing in terms of system, organization, content, form, and evaluation is a scientific and feasible physical education system

A241: Study on the Health Value of Chinese Traditional Archery in the Traditional Daoyin Regimen

Chinese archery, as a combination of sport, skill, and culture, is the historical crystallization of Chinese national culture. From the perspective of traditional guided health preservation, this paper systematically combs the theoretical basis and practical methods of Chinese traditional archery and reveals its health preservation thoughts of “Body and spirit co-cultivation”, “Dynamic and static combination”, and “Qi and blood harmony”, enriching the theoretical system of traditional sports regimen. Chinese traditional daoyin health care focuses on “Adjusting body”, “Adjusting breath”, and “Adjusting mind”, and analyzes the unique role of traditional archery in “Three tunes”. This paper demonstrates health health-preserving value of traditional archery as “Dynamic guidance” and provides a theoretical basis and practical guidance for its inheritance and development in modern society, it also provides a way to exercise with both cultural heritage and health benefits. Methods of documentation, expert interview, induction, and deduction were employed (1) “Body adjustment”. Traditional archery emphasizes “Upright body, steady bow and straight arrow”, which requires practitioners to maintain the center of the spine, shoulder and back extension, and limb coordination in the action of opening, aiming, and releasing the bow. This kind of specific posture training can correct posture, strengthen bones and tendons, and improve the circulation of Qi and blood. (2) “Breathe adjustment”. Archery pays attention to “Breath is the heart”, its breathing pattern, and the guidance of “Breathing” in the same strain. Long-term contact can be done to breathe naturally long, to rest the guiding force, harmonizing Yin and Yang. (3) “Psychological adjustment”. Since ancient times, archery has been regarded as the art of “Self-cultivation”, and its psychological regulation is particularly prominent, which can achieve concentration, emotion regulation, and unity of knowledge and action. Based on the theory of the traditional Daoyin regimen, this study systematically demonstrates the health value of the trinity of “Adjusting body, adjusting breath, and adjusting heart” in Chinese traditional archery. Traditional archery is a kind of “Dynamic guidance” with distinct characteristics, which has the dual effects of “Moving to nourish the body” and “Quiet to nourish the mind”. In the future, we should learn from the development model of Chinese guidance and carry out the research and practice of the combination of the two. To bring into play the unique advantages of traditional archery in improving Sub-optimal health, preventing chronic diseases, and promoting mental health

A059: Effects of Jump-Rope Exercise Snacks on the Feasibility and Perceived Effects of Inactive College Students

The compliance rate of college students’ physical health in China is on the decline. About 30% of college students in China fail in physical health, and nearly half exercise less than 3 times a week. To solve this problem, a strategy called Exercise Snacks (ES) is proposed, which is to carry out high-intensity intermittent exercise in a short time and using scattered time to increase daily activity. The purpose of this study is to explore the feasibility and perception effect of rope skipping snacks in campus life and provide a new way to solve the problem of insufficient exercise for young people. Method: Thirty-three female college students who lacked exercise were randomly divided into the ES group, moderate intensity continuous training (MICT)group, and control group (CON). The ES group and the MICT group trained 3 times a week for 8 weeks, and the CON group maintained their original living habits. The ES group performed rope skipping training for 3×60s three times a day; the MICT group performed a 30-minute treadmill jog with a maximum heart rate of 60-70%. Physical indicators and physical activity data were collected. Physical Activity Enjoyment Scale (PACES)was used to evaluate pleasure, quality of life (EQ-5D-5L), and perceived stress scale (PSQ)were used to evaluate perceived effect. The ES group and the MICT group were positive in feasibility and perceived effect. Compared with the CON group, the physical activity level of the two groups significantly improved, and there was no significant difference. In terms of pleasure, ES and MICT were higher (PACES were 93±12.6,90±8.5, respectively), and there was no significant difference. Compared with baseline, EQ-5D-5L was increased by 9%(MD=5.5) in ES group,6%(MD=4.5)in MICT group, and 8%(MD=-5.3)in CON group. There was no significant difference between ES and MICT. The PAQ value of the ES group decreased by 10%, the MICT group increased by 8%, and there was no significant change in the CON group. There was a significant difference between ES and MICT (P \u3c 0.05). 8-week rope skipping is feasible among college students. Both ES and MICT positively affected physical activity, pleasure, and quality of life. Compared with MICT, ES has greater advantages in reducing perceived stress and higher acceptance of participants. However, the sample size of the study is limited, and future research needs to expand the sample and explore long-term effects

A292: From Single to Multifunctional: Synergistic Pathways and Insights into Sports Venue Renovation and Urban Planning

The functional renovation of sports venues is a critical component of urban planning and plays a significant role in promoting sustainable urban development. As urbanization accelerates, traditional sports venues, limited by their single-function design, struggle to meet the diverse demands for public fitness, cultural activities, and commercial services. This study focuses on multiple sports venues in Guangzhou and Shantou, Guangdong Province, aiming to clarify the coordinated logic between venue renovation and urban planning. It aims to construct a dynamic adaptive strategy framework to provide theoretical support for enhancing urban spatial efficiency and improving residents\u27 quality of life. This study employs a mixed-methods approach that combines literature review, case studies, and empirical investigations. The research subjects include Tianhe Sports Center and Guangdong Olympic Sports Center in Guangzhou, as well as Shantou Sports Center. By analyzing policy documents, academic literature, and field data on venue utilization, surrounding transportation, and commercial distribution, the study combines qualitative analysis with logical reasoning to propose coordinated development strategies. The study identifies several challenges in venue renovation, including ambiguous functional positioning, spatial disconnection from urban layouts, outdated facilities, and rigid operational mechanisms. Addressing these challenges through strategies such as aligning functional positioning with urban planning, integrating spatial layouts with urban functions, coordinating facility upgrades with technological advancements, and establishing multi-stakeholder collaboration mechanisms can significantly enhance venue utilization and economic efficiency. Field surveys demonstrate that renovations in Guangzhou and Shantou have driven regional economic growth, optimized urban spatial structures, improved cultural and sports facilities for citizens, and promoted social equity. The proposed coordinated strategies provide a solid theoretical foundation for addressing the conflict between the limited functions of sports venues and the diverse needs of urban development. Unlike previous studies, this research emphasizes the systematic integration of venue functions with urban planning and highlights the importance of multi-stakeholder collaboration. A limitation of this study is the lack of quantitative analysis; future research could employ big data techniques to further validate the feasibility of the proposed strategies. Practically, this offers actionable insights for the sustainable development of sports venues and fosters deeper integration of the sports industry with urban planning, contributing to the creation of smarter and more inclusive urban ecosystems

A125: Effects of HD-tDCS Combined with Bosu Ball Training on Balance in Individuals with CAI

Chronic ankle instability (CAI) is a prevalent condition characterized by postural instability, recurrent sprains, and maladaptive neuroplasticity in sensorimotor cortices. This study aimed to evaluate the effects of a 6-week intervention combining high-definition transcranial direct current stimulation (HD-tDCS) targeting the central nervous system regions (e.g., M1/S1 cortices) with Bosu ball training on balance in individuals with CAI. Forty participants with chronic ankle instability (CAI) were recruited and randomly assigned to HD-tDCS+Bosu (n=20) or Bosu (n=20) groups using a computer-generated sequence. The HD-tDCS+Bosu group received active HD-tDCS (2mA, 20min) combined with Bosu ball training, while the Bosu group received sham HD-tDCS paired with identical Bosu training. Both groups underwent the intervention for six weeks, with three 20-minute sessions per week. The data on the postural stability were assessed at baseline (week0) and post-intervention (week 7). The postural stability was quantified by the root mean square (RMS) of the center of pressure (CoP) displacement during the single-leg stance test on a force plate. Two-way ANOVA with repeated measures was adopted to analyze the data. Significant group-by-intervention interactions were detected in the CoP-RMSml (p =0.009, η²p = 0.205). Post hoc comparisons showed that compared with week0, CoP-RMSml was reduced at week 7 in both the HD-tDCS + Bosu group (week0: 14.207 ± 2.695, week7: 9.459 ± 2.260, p = 0.002, d = 1.203) and the Bosu ball training group (week0: 14.105 ± 2.514, week7: 12.315 ± 2.482, p = 0.025, d = 0.721). The HD-tDCS + Bosu group showed a greater decrease in CoP-RMSml (p = 0.003, d = 1.152). In addition, a main effect of time was observed for CoP-RMSap (p = 0.015, η²p = 0.183), with decreases in both groups (HD-tDCS + Bosu group: week0: 9.440 ± 1.442, week7: 8.473 ± 1.882; Bosu group: week0: 9.459 ± 2.272, week7: 8.576 ± 1.151 The 6-week HD-tDCS combined with Bosu ball training significantly enhanced postural stability in individuals with CAI, demonstrating greater efficacy than sham HD-tDCS paired with identical Bosu training. The combined neuromodulation-targeting intervention (M1/S1 cortices) achieved superior rehabilitation outcomes for central sensorimotor integration deficits. These findings substantiate the clinical value of dual-pathway interventions that synchronously enhance corticospinal plasticity and task-specific motor adaptation in CAI management

A006: The Relationship Between Physical Activity Patterns and Physical Fitness in the Elderly

The study aims to categorize physical activity patterns in the elderly and investigate the relationship between these patterns and physical fitness. Method: We included in our study 95 older adults (37 males,57 females; Mage=71.01years) from three communities in Beijing, without missing data on both physical fitness and quality of life. The inclusion criteria: (1) age ≥ 60 years old, (2) residence in the local community for more than 5 years, and exclusion criteria: Those who have been unable to perform relevant physical activities within the last month due to illness or other reasons. The characteristics of the study population were investigated by self-designed questionnaires. Grip strength, body flexibility, and balance were tested with reference to the requirements of the National Physical Fitness Monitoring Operation Manual. Physical activities were assessed using the Physical Activity Survey for the elderly (PASE). Physical activity characteristics of the sample cases were identified using systematic clustering to obtain the physical activity patterns of the study subjects, and multiple linear regression models were used to analyze the relationship between physical fitness and physical activity patterns Two physical activity patterns of the study subjects were identified, namely: low physical activity level pattern and leisure-chore activity patternhe [sic] total PASE score, total physical activity time, leisure physical activity time, and chore-based physical activity time of the older adults subordinated to the leisure-chore activity pattern were higher than those of the low physical activity level pattern (P \u3c 0.05). There was no linear correlation between physical activity patterns and strength qualities and physical flexibility; there was a positive correlation between balance and leisure-chore activity patterns in older adults (β=0.250, P \u3c 0.05). Two patterns of physical activity were identified among community-dwelling older adults in Beijing: a low physical activity level pattern and a leisure-chore activity pattern. Older adults who belonged to the leisure-chore activity had better balance than those in the low physical activity level patterns

A065: Effect of Mental Fatigue on Lower Limb Biomechanics and ACL Injury Risk in Basketball Players

Anterior cruciate ligament (ACL) injuries are prevalent among basketball players, particularly during abrupt stop-jump actions. While most existing studies have focused on the impact of physical fatigue on athletic performance, the role of mental fatigue has been largely overlooked. High-intensity games can induce mental fatigue, which may further increase the risk of ACL injuries by altering lower limb biomechanical characteristics. However, the underlying mechanisms remain unclear. This study aimed to investigate the effects of mental fatigue on the biomechanical characteristics of the lower limb during a sharp stop-jump task in basketball players and to assess whether mental fatigue increases potential risk factors associated with ACL injuries. A total of 38 basketball players were recruited via a self-controlled study design. Mental fatigue was induced through a 45-minute Stroop task, with fatigue levels assessed via the visual analogue scale (VAS). Infrared motion capture systems, force platforms, and surface electromyography (EMG) devices were used to measure changes in kinematic, kinetic, and surface EMG data before and after mental fatigue intervention. The Wilcoxon signed-rank test was applied to the effects of mental fatigue on lower limb biomechanical characteristics. Following the induction of mental fatigue, significant decreases were observed in the knee flexion angle (z = -2.211, P = 0.02), internal rotation angle (z = -2.228, P = 0.02), internal rotation moment (z = -2.178, P = 0.02), and median frequency (MDF) of the rectus femoris (z = -3.009, P \u3c 0.01), biceps femoris (z = -3.285, P \u3c 0.01), tibialis anterior (z = -3.053, P \u3c 0.01), and gastrocnemius (z = -2.110, P = 0.03), as well as in the root mean square (RMS) of the tibialis anterior (z = -2.139, P = 0.03). Conversely, significant increases were noted in the peak vertical ground reaction force (z = -2.015, P = 0.04), knee extension moment (z = -2.162, P = 0.03), and RMS of the rectus femoris (z = -2.067, P = 0.03). Studies have demonstrated that mental fatigue negatively impacts the biomechanics of the lower extremities during abrupt stop jumps in basketball players, potentially increasing the risk of ACL injury. Targeted interventions should be developed to prevent the potential impact of mental fatigue on ACL

A240: Synergistic Effects of Physical-Mental Mixed Fatigue on Badminton Forehand Smash Performance

Existing studies have predominantly examined the isolated effects of physical or cognitive fatigue on athletic performance, yet the synergistic interplay of combined physical-mental fatigue in competitive badminton remains underexplored. This study addresses this gap by investigating how dual-channel fatigue—simultaneously induced through neuromuscular and cognitive demands—impacts the forehand jump smash, a critical offensive technique characterized by high-speed execution and precision. The purpose is to quantify the compound effects of mixed fatigue on smash performance and elucidate underlying neuromuscular-cognitive coupling mechanisms. Method: Twenty-four national-level badminton athletes (20 males, 4 females; age 21.8 ± 1.9 years) participated in a single-factor repeated-measures experiment. A graded neuromuscular-cognitive dual-channel fatigue protocol (baseline, mild, moderate, severe) was implemented, integrating physical tasks (vertical jumps, sprints, court drills) with cognitive stressors (randomized target hitting under time constraints). Multidimensional metrics—subjective fatigue (RPE, VAFS), countermovement jump (CMJ) height, radar-measured smash velocity, and motion-captured accuracy—were synchronized. Data were analyzed using mixed-model ANOVA, linear mixed-effects models, and Pearson correlations to assess fatigue progression and performance outcomes. Progressive fatigue induction led to significant increases in RPE (0 → 7.25) and VAFS (0 → 7.96; both p \u3c 0.001) and a 35.49% decline in CMJ height (41.00 → 27.86 cm, p \u3c 0.001). Smash velocity decreased by 10.6% (198.21 → 177.21 km/h, p \u3c 0.001), and accuracy declined by 46.1% (16.92 → 9.12 points, p \u3c 0.001). Speed-accuracy trade-offs emerged under moderate-to-severe fatigue (r = -0.58 to -0.53, p \u3c 0.01), indicating compromised motor control and decision-making. This study demonstrates that physical-mental mixed fatigue synergistically degrades smash performance beyond additive single-modality effects, highlighting nonlinear interactions between neuromuscular and cognitive systems. These findings contrast with prior studies isolating fatigue types, emphasizing the necessity of dual-channel fatigue monitoring in training and competition. Limitations include sample homogeneity and gender imbalance, which may limit generalizability. Future research should explore dynamic load regulation, sex-specific responses, and real-time neurophysiological monitoring to optimize anti-fatigue strategies and injury prevention

A274: Baduanjin for Rehabilitation in Stable-Stage COPD: A Review of Recent Research

Chronic obstructive pulmonary disease (COPD) significantly impairs patients\u27 quality of life. Recently, the traditional Chinese exercise Baduanjin has garnered attention for its potential benefits in the rehabilitation of patients during the stable phase of COPD. This study aims to review and analyze existing research on the application of Baduanjin in COPD rehabilitation to provide insights for clinical practice. Method: A comprehensive literature search was conducted in databases such as CNKI, Wanfang, and PubMed to collect studies published in recent years focusing on Baduanjin and COPD stable phase rehabilitation. The collected studies were systematically reviewed and analyzed to summarize the therapeutic effects and current research status of Baduanjin in COPD rehabilitation. The analysis indicates that Baduanjin practice can: 1. Enhance exercise endurance and improve pulmonary function parameters such as FEV1/FVC. 2. Improve blood gas levels, evidenced by increased oxygen partial pressure and decreased carbon dioxide partial pressure. 3. Alleviate airway inflammation by effectively regulating sputum inflammatory markers, including IL-8, TNF-α, CRP, and neutrophils. 4. Alleviate clinical symptoms, as demonstrated by improvements in the 6-minute walk test, modified dyspnea index, and COPD assessment test scores. 5. Enhance quality of life by reducing limitations related to coughing, sputum production, and restricted activities, as reflected in scores from the St. George\u27s Respiratory Questionnaire (SGRQ) and the WHO Quality of Life-BREF (WHOQOL-BREF). 6. Ameliorate psychological states, with long-term Baduanjin practice alleviating anxiety and depression. 7. Notably, short-term interventions (≤ 3 months) improve exercise endurance, but their effect on pulmonary function requires further validation. Long-term interventions (\u3e 3 months) yield more significant benefits. Baduanjin appears to positively influence pulmonary ventilation, blood gas parameters, inflammatory responses, clinical symptoms, quality of life, and psychological well-being in patients with stable-phase COPD, with prolonged practice yielding superior outcomes. However, existing studies often suffer from methodological limitations such as small sample sizes, short intervention durations, and simplistic statistical analyses. Future research should focus on large-scale, well-designed clinical trials and mechanistic studies to further elucidate the efficacy of Baduanjin in COPD rehabilitation