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A158: Artificial Intelligence Models\u27 Impact on Mass Cycling: Coexistence of Scientization, Healthization, Individuation, and Challenges
No full textWith the growing emphasis on health and increasing demand for sustainable travel, mass cycling (MC) has experienced rapid development. However, traditional bicycle designs exhibit notable deficiencies in functionality, personalization, and health management. While artificial intelligence (AI) technology has been extensively applied in various fields, including professional cycling competitions like the Tour de France, its potential to introduce new possibilities to MC remains uncertain. Therefore, we undertook a comprehensive investigation into the impact and application of AI on the development of MC, aiming to facilitate the digital and intelligent transformation of MC. Method: We selected representative bicycle enterprises and related projects in the application of AI, including Specialized, Trek, Giant, Garmin, and some mass-based bicycle races for research. Using the principle of comparative experiments, we collected and compared multiple data in aspects such as the evaluation of riding performance (average riding distance, average riding speed, fatigue, etc.), user satisfaction, and the participation rate in races of MC under the circumstances of traditional mode and the AI-based mode through web information queries, DeepSeek, SPSS, and Tableau. Thus, we analyzed the impact of AI on the development of MC and made an objective summary. The research shows (compared with the traditional mode): (1) AI analyzes users\u27 body shapes, skeletal features, riding habits, etc., through deep learning algorithms to customize bicycles on a personalized basis. (User satisfaction increased by 92%, the riding comfort score rose by 40%, the average daily riding distance grew by 12%, and the fatigue after long rides decreased by 30%). (2) The AI-driven health management system can help users avoid excessive fatigue or injuries. (The average weekly riding distance increased by 25%, and the performance improved by 8%). (3) The MC events using AI algorithms have optimized the route and diversified the competition formats, attracting more participants. In previous studies, AI has brought benefits to the bicycle industry, yet there is scant research based on MC. However, this study reveals some challenges: (1) The application of AI algorithms in low-resource scenarios; (2) Issues related to user privacy protection; (3) Problems concerning the popularization of the technology. We suggest: (1) Verify the feasibility and effectiveness of AI technology in practical applications in MC through small-scale pilot experiments. (2) Strengthen user education and publicity to enhance the understanding and acceptance of AI technology
Infrasound from Prescribed Burn in Reynolds Creek Experimental Watershed, ID, USA
No full textThis dataset includes infrasound recorded during a prescribed fire in Reynolds Creek Experimental Watershed. The purpose of the dataset is to support research assessing methods and usefulness of monitoring wildland fire with infrasound
A201: Biomechanical Investigation of Lower Limb Symmetry in Stroke Patients Using OpenSim
No full textStroke has emerged as a leading health threat, characterized by its rapid onset, high mortality rate, and significant disability. One of the primary effects of stroke is the abnormality in gait, particularly the asymmetry observed in patients, which severely impacts daily activities and mobility. This study aims to compare the symmetry of lower limb muscle activity during gait in individuals who have suffered a stroke. Method: Nine stroke patients were recruited from the Rehabilitation Hospital. A motion-capture system equipped with ten cameras (VICON Motion Systems Ltd, UK) and a split-belt treadmill (Motek, Amsterdam, NL) was synchronized to collect marker trajectories and ground reaction forces at sampling frequencies of 200 Hz and 1000 Hz, respectively. We collected the kinematic and kinetic parameters of the participants\u27 walking gait cycles. Subsequently, a paired sample T-test was conducted using SPSS to compare these parameters, with a significance level set at P \u3c 0.05. The force exerted by the soleus muscle in the paretic leg was significantly lower than that in the non-paretic leg during the 7-15% (p \u3c 0.001, t = 3.235) and 19-51% (p \u3c 0.001, t = 3.235) phases of the gait cycle. Additionally, the force of the medial gastrocnemius was significantly greater in the paretic leg compared to the non-paretic leg during the 0-58% phase (p \u3c 0.001, t = 3.286). Conversely, the force of the lateral gastrocnemius was significantly lower during the 0-15% (p \u3c 0.001, t = 3.255) and 25-47% (p \u3c 0.001, t = 3.255) phases. These results indicate that the lengths of the soleus, medial gastrocnemius, lateral gastrocnemius, and tibialis posterior muscles were significantly shorter in the paretic leg compared to the non-paretic leg throughout the walking gait cycle. Stroke patients exhibit asymmetric lower limb dynamics, characterized by diminished soleus and lateral gastrocnemius forces, accompanied by compensatory overactivity of the medial gastrocnemius in paretic limbs. The paretic muscles demonstrate reduced lengths throughout the gait cycle, suggesting that neuromuscular compensation and structural adaptations contribute to post-stroke gait asymmetry. These findings underscore the importance of rehabilitation strategies that target force deficits and enhance muscular adaptability to improve gait symmetry
A111: The Impact of Virtual Exergames on BMI and Physical Activity in Obese College Students
No full textIn recent years, the prevalence of overweight and obesity in China has risen significantly, becoming a major public health issue, with increasing rates among college students. Obesity not only harms physical health but also contributes to psychological issues like depression and anxiety. Currently, digitalized exercise modes are gradually becoming the preferred choice for young people, with virtual exergames standing out as a major force driving this trend due to their unique fun and interactive nature. Unlike traditional exercise, virtual exergames are active video games controlled by bodily movements in a safe environment, offering a fun way to overcome exercise barriers and improve adherence among college students. Thus, this study was to explore the impact of virtual exergames on BMI and physical activity levels in this population. This study recruited 30 college students from Central China Normal University (Mage=20.17±2.15, MBMI=29.82±2.95, 7 males, 23 females) as experimental Inbody and the International Physical Activity Questionnaire Short Form (IPAQ-SF) to examine changes in BMI and physical activity levels before and after the intervention. The experimental group underwent an 8-week exergames intervention, with sessions held 3 times per week for 90 minutes each, while the control group maintained their original lifestyle without additional interventions. A repeated measures ANOVA was used to examine change (i.e., BMI and physical activity) before and after intervention. The repeated-measures ANOVA, with group (experimental vs. control) as a between-subject factor and time (pre-test, post-test) as a within-subject factor, revealed significant group × time interactions for BMI, high-intensity physical activity time, physical activity volume, and sedentary time (F (1,28) = 18.79, 8.01, 8.10 & 5.92, respectively, all p \u3c 0.05). Post-hoc analyses revealed that the improvements in BMI, high-intensity physical activity time, physical activity volume, and sedentary time from pre-test to post-test were significantly greater in the experimental group compared to the control group. This indicates that the experimental group achieved better improvements in BMI, high-intensity physical activity time, physical activity volume, and sedentary time than the control group. Virtual exergames can improve BMI and physical activity levels among college students. This indicates that virtual exergames play an important role in improving weight management and promoting physical activity among students, helping college students adopt healthier lifestyles
A188: An Experimental Study of the Impact of Badminton Teaching on College Students\u27 Health
No full textObjective: To analyze and explore the impact of badminton teaching on the physical health of college students, and to provide a theoretical basis for the reform of the badminton teaching mode and evaluation. This study mainly used the teaching experiment method to analyze and compare the physical health data of 120 college students in 2018 at Northwestern Polytechnical University before and after teaching, and used the National Student Physical Health Standards, which was composed of the sum of the scores of each individual index and the product of the weights (full score of 100 points). There were no significant changes in the body shape, sitting forward bending, 50 meters (female), and test ind (P \u3e 0.05), while there were significant differences in lung capacity, standing long jump, 50 meters (male), pull-ups, sit-ups, 1000 meters, and 800 meters (P \u3c 0.05) or (P \u3c 0.01). In terms of body shape, the effect of the badminton optional course on the improvement of college students\u27 body shape is. In terms of physical function, it is conducive to the improvement of college students, and in terms of physical fitness, it is conducive to promoting the strength quality and lower limb explosiveness of college students and has a promotion effect on the aerobic endurance quality of college students
A224: 15–17-Year-Old Student Swimmers Undergoing High-Altitude Training on Water Load Characteristics
No full textWith the continuous improvement of swimming competition level, high-altitude training, as a scientific and effective training method, has received attention from swimmers. Both professional teams and amateur sports schools give widespread attention to high-altitude training. The purpose of this study is to explore the characteristics of the three-week high-altitude training load of 15-17 male student swimmers and analyze whether it is effective for competition results. Ten male student swimmers (national level one or above) aged 15-17 years old were selected as the subjects and underwent a three-week high-altitude training at an altitude of 1900 meters. Method: The research method uses a tracking observation method and adopts a five-level load intensity model for adolescent swimmers to analyze the load characteristics (load amount, load intensity) of the high-altitude training water training plan. Based on the competition results, this study explores the appropriate training load for 15–17-year-old student swimmers during three weeks of high-altitude training. The research results show that the overall trend of water load during three weeks of high-altitude training is wave-like, with a training frequency of 8-10 times and a water training time of 120-150 minutes per session. The weekly training time is between 960 minutes and 1380 minutes. The total weekly load between 48050 meters and 54350 meters, and the three-week high-altitude training load intensity is mainly focused on interval 2 and interval 3 intensity training. Through three weeks of high-altitude training under this load, 70% of student athletes have improved their performance in both the pre-high altitude (last competition) and post-high altitude (last competition) specific areas, with an average improvement of 2.4% in performance. Among them, 60% of student athletes showed a significant improvement of more than 1 second in their specialized performance, with an average performance increase of 2.6%. Among the performance improvement events for student athletes, breaststroke and butterfly events are particularly prominent. In terms of distance, mid-range athletes have the greatest improvement, while short distance events have limited improvement. This training load characteristic is effective for male student swimmers aged 15-17 at high altitudes and has a positive impact on their competition performance. However, due to the special group, high-altitude training has time limitations. This study was conducted within a relatively short three-week high-altitude training period, and further exploration is needed on the characteristics of high-altitude training programs and load monitoring for this group
A109: Analysis of Optimization Pathways for the Structure of Sports Consumption in the Digital Economy
No full textWith the rapid development of the digital economy, the structure of sports consumption is undergoing profound transformations. Traditional sports consumption models can no longer meet the increasingly diversified and personalized demands of consumers. The integration of digital technologies presents new opportunities for the transformation of the sports industry. This study aims to explore how digital technologies can optimize the structure of sports consumption, enhance consumer experiences, and promote the sustainable development of the sports industry. Based on survey data from 524 Chinese residents (282 females and 242 males), this study employs statistical analysis using SPSS to conduct an in-depth examination of three key dimensions: the application of digital technologies in sports consumption, consumer willingness toward non-physical sports consumption, and overall sports consumption intention. The study further investigates the impact mechanisms of the digital economy on the structure of sports consumption. The findings indicate that: (1) The application of digital technologies significantly enhances residents\u27 willingness to engage in sports consumption (β=0.453, p \u3c 0.01), particularly in the domain of non-physical consumption, such as online fitness courses and virtual sports event viewing; (2) Traditional sports consumption models face three major challenges, including homogenized offerings, outdated facilities, and high costs; (3) Consumers demonstrate a strong demand for intelligent services, and digital technologies, through personalized recommendations, effectively activate the latent sports consumption market. The results provide new perspectives and empirical evidence for policymakers in formulating sports + digital integration policies and for enterprises undergoing digital transformation. However, this study has limitations, such as the restricted regional scope of the sample. Future research should expand the sample coverage and refine the analysis of consumption behavior differences across various demographic groups (e.g., age, income levels, and urban stratification), while further exploring intergenerational differences
A176: Exercise Strategies for Childhood Obesity: A Network Meta-Analysis
No full textChildhood obesity is a growing global health concern, associated with increased risks of metabolic disorders and mental health issues. Exercise interventions are widely recognized as effective non-pharmacological strategies for improving body composition in overweight and obese individuals. However, the comparative effectiveness of different exercise modalities remains unclear. This study aims to systematically evaluate the impact of over ten exercise types on key body composition indicators—body mass index (BMI) and body fat percentage (BF%)—through a network meta-analysis, providing robust evidence to inform targeted intervention strategies. Method: A systematic search of Scopus, OVID, Cochrane Library, PubMed, and Web of Science databases was conducted for randomized controlled trials (RCTs) on exercise interventions in overweight and obese individuals, covering studies available up to November 1, 2024. Two independent reviewers screened studies, extracted data, and assessed risk of bias. Pairwise meta-analysis and Bayesian network meta-analysis were performed using R software to compare intervention effects and establish rankings of exercise effectiveness. A total of 61 RCTs involving 2,590 participants were included. Pairwise meta-analysis showed that 50% of exercise types had no significant impact on BMI, and 38% showed no significant impact on BF%. Network meta-analysis identified Jump Rope, Multi-component Exercise, High-Intensity Interval Training (HIIT), Moderate-Intensity Continuous Training (MICT), and Aerobic Exercise as the most effective interventions for reducing BMI. For BF%, the most effective were HIIT, MICT, Multi-component, Aerobic Exercise, and Jump Rope. Jump rope exercises emerged as the most effective for BMI reduction, while HIIT demonstrated the greatest impact on reducing BF%. Multi-component exercise exhibited a well-balanced effect across multiple body composition indicators, suggesting its suitability for holistic obesity interventions. These findings emphasize the necessity of individualized exercise prescriptions tailored to specific body composition goals. Moreover, given the challenges associated with exercise adherence and long-term effectiveness, future research should explore strategies to enhance engagement, optimize training intensity and duration, and integrate exercise with other lifestyle interventions such as dietary modifications and behavioral therapy. Large-scale, long-term randomized controlled trials are warranted to validate these findings and further refine exercise-based obesity management strategies for children and adolescents
A041: “Sports Yuan”: The Body Expression of Young Women\u27s Digital Participation in Sports
No full textWith the rise of social media and the popularity of outdoor sports, more young women are sharing sports-related photos and videos online, giving rise to the “sports goddess” phenomenon. This trend has sparked debate, being seen as a reflection of modern women’s active and healthy lifestyle, yet criticized for excessive image focus, deviating from true sports spirit. This research aims to analyze the bodily expression behind the phenomenon and its impact on sports culture, using self-presentation theory and power-disciplinary theory to explore how social media shapes women’s self-expression. This study uses theoretical analysis based on Erving Goffman’s self-presentation theory and Michel Foucault’s power-disciplinary theory. It observes sports-related content posted by young women on social media platforms (e.g., Weibo, Xiaohongshu, Douyin), combining literature review and case analysis to explore bodily expressions in digital sports participation and their social-cultural implications. Data sources include public content on social media and academic literature, with analysis focusing on theoretical interpretation and phenomenological description. The study is a split between frontstage and backstage in the “sports goddess” phenomenon. On the frontstage, women curate idealized health images through planned sports scenes, emphasizing aesthetics and fashion. However, backstage, the true sports experience is overlooked, with the body becoming a visual consumption object and sports reduced to a “photo-ready” activity. This reflects how social media disciplines women’s bodies, where the pursuit of popularity and aesthetics leads to a deviation from the true essence of sports, transforming it into a symbol of visual consumption. The “sports goddess” phenomenon highlights the complexity and contradictions of women’s bodily expression in the social media era. While it shows women’s pursuit of bodily autonomy, it also reveals the disciplining and commercialization of their bodies by social media. This study calls for reflection on the meaning of bodily expression and advocates for a return to the essence of sports, emphasizing authentic bodily experiences. Future research could explore how policy and content innovation can reduce social media’s negative effects on women’s bodies and promote a healthier sports culture
A234: The Challenge of Physical Education Teachers in Primary and Secondary Schools
No full textPhysical health in primary and secondary schools is the foundation for students\u27 comprehensive development, and school sports are an important way to promote students\u27 physical health. The implementation effect of school physical education largely depends on the professional competence and educational ability of physical education teachers. The problems faced by physical education teachers in the new era: the number and structure of physical education teachers; Challenges in teaching philosophy and abilities; The conflict between teaching pressure and the system; the disconnect between professional competence and training needs. Countermeasure: Optimize the construction of the physical education teacher team; Promote the reform and innovation of physical education teaching; Optimize teaching and rating mechanisms; Strengthen the construction of teachers\u27 professional abilities. Method: literature review method; Interview method. (1) Insufficient number and imbalanced structure of physical education teachers, (2) Teachers are constrained by long-standing traditional beliefs. Lack of interdisciplinary teaching ability: weak knowledge in health education and sports science, inadequate guidance ability for special student groups, and insufficient ability to integrate physical education with morality, intelligence, and aesthetics. Insufficient ability to apply information technology: Teachers lack understanding of big data and artificial intelligence, leading to insufficient development of digital teaching resources. (3) The increase in physical education class hours and the trend towards teaching: The new curriculum standard clearly requires that physical education class hours account for 10% -11%, but the teaching content has been alienated as training . After class services and work overload: The implementation of after-school services has led to teachers being overloaded with work, while their salaries have not increased synchronously, resulting in occupational burnout. (4) New curriculum requirements and capacity shortage: The new curriculum proposes a composite goal of specialized skills+health education , but some teachers lack systematic training on emerging projects or health knowledge. Formalization of training and lack of resources: There are few training opportunities, and the content tends to be theoretical, making it difficult to solve personalized problems in practical teaching. (1) Expand staffing supply and optimize resource allocation. (2) Teachers should update their teaching philosophy, optimize their teaching content and methods, and strengthen the quality inspection of physical education teaching. (3) Avoid the exam-oriented approach to sports, reconstruct the evaluation system, reduce teachers\u27 burden, optimize after-school service mechanisms, and provide targeted training and digital resource sharing. Encourage collaboration between schools and external teams