ISSN : 1598-2939
With the emerging trend of technological advancement in sport media production, sport analytics has provided fan-oriented game contents through multimedia platforms. This study aims to empirically investigate sport fans’ perceptions toward sport analytics contents (i.e., statistics, video, data visualization, decision-aid) by exploring their impact on fan engagement (i.e., information, entertainment, personal identity, social interaction) and employing the uses and gratifications theory. Using multiple regressions, this study found that sport fans are more likely to consume statistics and video contents for information search and entertainment. Moreover, data visualization and decision-aid contents showed a positive impact on subjects’ personal identity and social interaction. The present study highlights key aspects of sport analytics in its application to sport media production as well as sport management at large.
This study investigated whether different exercise intensities during detraining could maintain muscle hypertrophy and mitochondrial biogenesis signaling pathways activated high-intensity interval training (HIIT) in the flexor pollicis longus and soleus muscles of Sprague-Dawley rats. Fiver groups were studied: non-exercise ([NEG], n=6), HIIT only ([CTG], n=6), resting control ([CD], n=6), low-intensity exercise (LID, n=6), moderate-intensity exercise ([MID], n=6). The HIIT program consisted of 30-minute sessions of 24 m/min for eight weeks. During detraining (two weeks), LID and MID groups exercise three times per week at 8 m/min and 16 m/min, respectively. Muscle hypertrophy and mitochondrial biogenesis-related protein expression in the flexor pollicis longus and soleus muscles were analyzed using Western blotting. Compared to NEG, PI3K was higher in the CTG and LID in the flexor pollicis longus, while Akt and p-mTOR signaling pathways were significantly activated in MID and CTG. In the soleus muscle, p-AMPK expression was higher in CD and MID than in NEG, and FNDC5 was upregulated in LID compared to CTG and CD. These findings suggest that moderate-intensity exercise during detraining may help maintain HIIT-induced muscle hypertrophy signaling, while low-intensity exercise may contribute to sustaining HIIT-activated aerobic metabolism in skeletal muscle.
Female Korean professional soccer players endure a high burden of injuries throughout their careers. This retrospective study investigated their injury history characteristics by surveying 181 players across eight Korea Women’s Football Federation teams. The survey covered demographics, playing positions, career spans, dominant legs, national team memberships, and detailed information on previous injuries, including location, type, mechanism, and severity. Analysis revealed lower extremities as the most vulnerable region, injured in 44.7% of competitions, and 46.6% of practice sessions, followed by foot and ankle injuries. Joint and ligament injuries dominated, comprising 45.0% of competition-related incidents, and 55.2% of those sustained during practice. Notably, contact was the primary mechanism for practice injuries (49.8%), while overuse (33.4%) and contact (33.2%) shared the blame in competitions. Interestingly, severe injuries were significantly more prevalent in practice (65.2%) compared to competitions (48.2%). Almost all players had at least one previous injury, often affecting the lower extremities. This highlights the need for targeted preventive measures addressing the high prevalence of severe joint and ligament injuries, often exacerbated by aggressive situations. These findings emphasize the crucial need for tailored injury prevention strategies specifically designed for the unique demands and challenges faced by women’s soccer players.
This study aimed to validate the athletes’ subjective performance scale (ASPS) and examine its optimal categorization measuring Korean university athletes using the Rasch model. A six-item ASPS with ten response categories was administered to 201 Korean university athletes participating in team sport events. The Rash measurement program, Winsteps (version 4.6.2.1), was used to perform Rasch analysis. The results showed that the model was a good fit for the data. The Wright-Andrich map indicated ceiling and floor effects, as ASPS items were unable to measure individuals with logits beyond 3 or below −2.5. Furthermore, the reliability of item separation and person separation demonstrated acceptable confidence. Lastly, the findings indicated that the ASPS, which utilized a 10-category rating scale, was problematic due to disordered thresholds. The exploratory analysis revealed that both six and seven-category rating scales appeared to comply with the effective classification criteria, but further research is needed for confirmatory analysis. Previous research has explored the relationships between psychometric factors and subjective performance; however, this study offers valuable insights into optimal categorization and introduces an innovative approach to measuring athletes’ subjective performance. To assess subjective sport performance satisfaction, the authors propose employing a six-category rating scale, which this study found to be reliable and valid in relation to construct.
This single-case study explored the impact of eight sessions of psychological skills training to improve the performance of a student basketball player struggling with high negative emotions and underperforming due to limited psychological skills. The study participant underwent three baseline assessments of mood state, sports performance strategies (test of performance strategies), and perceived performance (perceived performance inventory and interview) before embarking on the A-B design intervention. Following the eight-week training program, consisting of 50–60 minute sessions encompassing MBTI/self-analysis, goal setting, relaxation/imagery training, self-talk training, concentration training, and routine training, assessments were repeated at four and eight weeks post-intervention. The quantitative data gathered from inventory scores were analyzed using Excel, and presented in a table. Qualitative data from interviews produced further insights into the patient’s experience. This study suggests that eight sessions of psychological skills training can effectively improve mood state, sports performance strategies, and perceived performance in student baseball players. This highlights the potential of such interventions to enhance athletic performance and well-being in individuals struggling with psychological barriers.
The role of parental physical activity (PA) behaviors in promoting PA support for children with developmental disabilities (DDs) is unclear. The study examined differences in parental PA support between inactive and active parents of children with DDs, and investigated the association between parental PA behaviors and three types of support: encouragement, co-participation in PA activities (co-PA), and logistical support. A total of 319 parents of children with DDs participated in an online survey. Utilizing exploratory factor analysis, independent t-tests, and multiple regression analyses, the study revealed significantly lower levels of all three types of parental PA support provided by inactive parents compared to active parents. Additionally, the dummy coded variable representing parental PA behavior groups (active vs. inactive group) emerged as a significant predictor of all three types of support: encouragement (β = −.20, p <.001), co-PA (β = −.43, p <.001), and logistic support (β = −.35, p <.001). For professionals working with families in this context, the crucial role of parental PA behaviors in shaping PA support for children with DDs should be considered.
Childhood obesity is a global public health issue. Physical activity (PA) plays an important role in the prevention of becoming obese and reducing the risk of obesity. This study aims to explore the trends of PA and its effects on obesity among preschool children (aged 3–7 years) in different cultural contexts (i.e., Western countries and China). Five databases (English database [PubMed] and four Chinese journal databases [CBM, CNKI, CQVIP, and Wanfangdata]) were searched for studies published between 2002 and 2022. Five Chinese studies were included in the article. These studies demonstrated that comprehensive intervention including PA can prevent and alleviate obesity in preschool children. Eleven English studies met the inclusion criteria, of which seven indicated that the intervention groups reduce obesity among preschool children, while four showed no significant difference. The findings suggest that PA has a discernible impact on obesity in preschool children, highlighting the need for future studies to focus on this specific population to prevent their health better.
The purpose of this study was to analyze the effects of bilateral landing leg and sex on resultant ground reaction force (GRF) and its velocity, using peak vertical GRF and elapsed time during drop landing tasks. A repeated-measures two-way analysis of variance explored the impact of landing legs and sex on the resultant vector, three-dimensional GRF, elapsed time, and velocity in 40 participants (20 males and 20 females). Participants performed drop landings from a 35-cm box. Effects of sex and landing leg were analyzed using a repeated-measures model (two sexes × two legs) on GRF magnitude and velocity. Females displayed shorter elapsed times to peak GRF compared to males in the anterior-posterior and vertical directions. Significant differences emerged between sexes in both magnitude and velocity of resultant and peak vertical GRF, with females exhibiting higher values. This suggests the adoption of distinct landing strategies between sexes. Notably, no significant differences were found in GRF magnitude or velocity between bilateral leg landings. These results indicate that healthy individuals of both sexes utilize different landing strategies during drop landings. This knowledge has potential applications in clinical settings for evaluating impulse force and stress transfer to the musculoskeletal system during landing tasks.
