Pub Date : 2022-09-30DOI: 10.24985/kjss.2022.33.3.440
Min Young Lee, Se-Young Park, Bomin Kim, W. Jang
PURPOSE The current study examined how baseball fans evaluate a robot umpire from the perspective of the human-robot interaction. In particular, this study examined whether baseball fans evaluated more positively a robot umpire depending on whether a robot or a human umpire has the final authority to make ball-strike decisions, when the ball-strike decision contradicts with each other. Furthermore, the different types of expertise (baseball vs. image analysis) embedded in robot umpire and fans’ levels of technology adoption were used to examine the relationship between umpire type and evaluations of robot umpire. METHODS This study used 2 (final decision maker: robot vs. human umpire) by 2 (different types of expertise embedded in robot umpire: baseball vs. image analysis) by 2 (different levels of technology adoption: low vs. high) between-subjects design.RESULTS The results indicated that when a robot umpire had the final authority to make ball-strike decisions, baseball fans evaluated more positively the adoption of robot umpire, when image analysis expertise was embedded in the robot umpire rather than baseball expertise. Meanwhile, baseball fans evaluated more positively the adoption of robot umpire when baseball expertise was embedded in a robot umpire rather than image analysis expertise. CONCLUSIONS The current study provides meaningful implications regarding how to design an effective system for the operation of robot umpire in baseball.
{"title":"Baseball Fans’ Evaluations of Robot Umpire: The Perspective of Human-Robot Interaction","authors":"Min Young Lee, Se-Young Park, Bomin Kim, W. Jang","doi":"10.24985/kjss.2022.33.3.440","DOIUrl":"https://doi.org/10.24985/kjss.2022.33.3.440","url":null,"abstract":"PURPOSE The current study examined how baseball fans evaluate a robot umpire from the perspective of the human-robot interaction. In particular, this study examined whether baseball fans evaluated more positively a robot umpire depending on whether a robot or a human umpire has the final authority to make ball-strike decisions, when the ball-strike decision contradicts with each other. Furthermore, the different types of expertise (baseball vs. image analysis) embedded in robot umpire and fans’ levels of technology adoption were used to examine the relationship between umpire type and evaluations of robot umpire. METHODS This study used 2 (final decision maker: robot vs. human umpire) by 2 (different types of expertise embedded in robot umpire: baseball vs. image analysis) by 2 (different levels of technology adoption: low vs. high) between-subjects design.RESULTS The results indicated that when a robot umpire had the final authority to make ball-strike decisions, baseball fans evaluated more positively the adoption of robot umpire, when image analysis expertise was embedded in the robot umpire rather than baseball expertise. Meanwhile, baseball fans evaluated more positively the adoption of robot umpire when baseball expertise was embedded in a robot umpire rather than image analysis expertise. CONCLUSIONS The current study provides meaningful implications regarding how to design an effective system for the operation of robot umpire in baseball.","PeriodicalId":17892,"journal":{"name":"Korean Journal of Sport Science","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84434725","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-09-30DOI: 10.24985/kjss.2022.33.3.369
Youngsook Kim, Yongse Kim
PURPOSE This study aimed to apply a team-building program for preparing the national archery team for competition in the Olympics. METHODS To achieve the purpose of this study, six national archers (three men and three women) were included. The team-building program was applied for a total 6 sessions (one session per week). Group cohesion and efficacy were measured three times before, after, and at a later application of the program. The collected data were analyzed with the Friedman and Wilcoxon signed-rank tests, which are nonparametric statistical techniques for data analysis. In addition, an in-depth interview for qualitative data was conducted for each archer to explore the effects and changes resulting from participation in the program. RESULTS The results of the study are as follows: first, the levels of team cohesion and efficacy in the national archery team increased after the implementation of the program compared to those in the pre-implementation state. Furthermore, high levels of team cohesion and efficacy were maintained at the follow-up measurement. Second, the archers recognized that closeness and faith in one another increased more between team members. Furthermore, there were positive changes in team communication, atmosphere, cohesion, and efficacy during team matches. CONCLUSIONS The team-building program applied in this study was found to have a positive effect on various factors related to team cohesion, such as team communication and team atmosphere. Therefore, future studies should consider developing a team-building program that can contribute to improving team sport performance for different sports and the effects of the program should be examined using various methods.
{"title":"The Application of a Team-Building Program for Team Match in the National Archery Team","authors":"Youngsook Kim, Yongse Kim","doi":"10.24985/kjss.2022.33.3.369","DOIUrl":"https://doi.org/10.24985/kjss.2022.33.3.369","url":null,"abstract":"PURPOSE This study aimed to apply a team-building program for preparing the national archery team for competition in the Olympics. METHODS To achieve the purpose of this study, six national archers (three men and three women) were included. The team-building program was applied for a total 6 sessions (one session per week). Group cohesion and efficacy were measured three times before, after, and at a later application of the program. The collected data were analyzed with the Friedman and Wilcoxon signed-rank tests, which are nonparametric statistical techniques for data analysis. In addition, an in-depth interview for qualitative data was conducted for each archer to explore the effects and changes resulting from participation in the program. RESULTS The results of the study are as follows: first, the levels of team cohesion and efficacy in the national archery team increased after the implementation of the program compared to those in the pre-implementation state. Furthermore, high levels of team cohesion and efficacy were maintained at the follow-up measurement. Second, the archers recognized that closeness and faith in one another increased more between team members. Furthermore, there were positive changes in team communication, atmosphere, cohesion, and efficacy during team matches. CONCLUSIONS The team-building program applied in this study was found to have a positive effect on various factors related to team cohesion, such as team communication and team atmosphere. Therefore, future studies should consider developing a team-building program that can contribute to improving team sport performance for different sports and the effects of the program should be examined using various methods.","PeriodicalId":17892,"journal":{"name":"Korean Journal of Sport Science","volume":"16 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76483297","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-09-30DOI: 10.24985/kjss.2022.33.3.396
Keunchul Lee, Yongse Kim
PURPOSE This study aimed to provide evidence for improving the working environment by exploring the phenomenon of presenteeism experienced by coaches. METHODS Ten coaches experiencing presenteeism were selected as participants of the study using the snowball sampling method, and in-depth interviews were conducted. The in-depth interviews were conducted for about 50 to 60 min using semi-structured questions organized through pre-expert meetings, and inductive content analysis was conducted. RESULTS First, the health problems that developed while coaching were categorized into two detailed areas (physical and psychological symptoms). Second, the causes of presenteeism were categorized into four general areas (policy and institutional problems, poor job environment, athlete problems, and human relations). Third, performance loss due to presenteeism was categorized into two general areas (coach-athlete relationship damage and poor training performance). Finally, coping with presenteeism was categorized into three detailed areas (private time spending, joining acquaintances, and changing training methods). CONCLUSIONS The result of this study confirmed that coaches are currently experiencing the phenomenon of presenteeism for various reasons, and the symptoms and coping method for this differ with each individual. However, the phenomenon of presenteeism experienced by coaches requires further future research since it is not easily observed and the coping method is not efficient.
{"title":"Exploring Presenteeism Experiences of Athletic Coaches","authors":"Keunchul Lee, Yongse Kim","doi":"10.24985/kjss.2022.33.3.396","DOIUrl":"https://doi.org/10.24985/kjss.2022.33.3.396","url":null,"abstract":"PURPOSE This study aimed to provide evidence for improving the working environment by exploring the phenomenon of presenteeism experienced by coaches. METHODS Ten coaches experiencing presenteeism were selected as participants of the study using the snowball sampling method, and in-depth interviews were conducted. The in-depth interviews were conducted for about 50 to 60 min using semi-structured questions organized through pre-expert meetings, and inductive content analysis was conducted. RESULTS First, the health problems that developed while coaching were categorized into two detailed areas (physical and psychological symptoms). Second, the causes of presenteeism were categorized into four general areas (policy and institutional problems, poor job environment, athlete problems, and human relations). Third, performance loss due to presenteeism was categorized into two general areas (coach-athlete relationship damage and poor training performance). Finally, coping with presenteeism was categorized into three detailed areas (private time spending, joining acquaintances, and changing training methods). CONCLUSIONS The result of this study confirmed that coaches are currently experiencing the phenomenon of presenteeism for various reasons, and the symptoms and coping method for this differ with each individual. However, the phenomenon of presenteeism experienced by coaches requires further future research since it is not easily observed and the coping method is not efficient.","PeriodicalId":17892,"journal":{"name":"Korean Journal of Sport Science","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85226631","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-09-30DOI: 10.24985/kjss.2022.33.3.330
Inhwan Lee
PURPOSE This study investigated the associations between mental health and physical activity with all-cause mortality in persons with disability. METHODS A total of 595 participants (39.3% women) aged 45≥ years, who participated in the Korean longitudinal study of aging (KLoSA) were included in this study. The Korean version of mini-mental state examination (K-MMSE) and the center for epidemiologic studies depression scale (CES-D) were used to assess cognitive impairment and depressive symptoms, respectively. The participants were classified into active and inactive groups based on physical activity of 150 min/week. Cox’s proportional regression analyses were used to determine the hazard ratio (HR) and 95% confidence interval (CI) of mental health and physical activity relating to all-cause mortality. RESULTS During the follow-up period (11.8±4.1 years), a total of 218 (36.6%) deaths occurred from all-causes. Participants in the inactive group had significantly higher cognitive impairment (p =0.046), depressive symptoms (p =0.001), and all-cause mortality (p=0.037) than those in the active group. Compared to participants in the normal (HR=1), cognitive impairment (HR=2.229, 95% CI=1.645-3.020, p<0.001), and depressive symptoms groups (HR=1.542, 95% CI=1.136-2.091, p<0.001), those in the inactive group had significantly higher HR related to all-cause mortality. However, in the active group, cognitive function and depressive symptoms were not associated with all-cause mortality. CONCLUSIONS The current finding suggests that the promotion of physical activity may play an important role in preventing premature death from all-causes in persons with disability, especially among those with mental health problems.
{"title":"Association of Mental Health and Physical Activity with All-cause Mortality in Persons with Disability: Based on 14-year Follow-up Data from the Korean Longitudinal Study of Aging","authors":"Inhwan Lee","doi":"10.24985/kjss.2022.33.3.330","DOIUrl":"https://doi.org/10.24985/kjss.2022.33.3.330","url":null,"abstract":"PURPOSE This study investigated the associations between mental health and physical activity with all-cause mortality in persons with disability. METHODS A total of 595 participants (39.3% women) aged 45≥ years, who participated in the Korean longitudinal study of aging (KLoSA) were included in this study. The Korean version of mini-mental state examination (K-MMSE) and the center for epidemiologic studies depression scale (CES-D) were used to assess cognitive impairment and depressive symptoms, respectively. The participants were classified into active and inactive groups based on physical activity of 150 min/week. Cox’s proportional regression analyses were used to determine the hazard ratio (HR) and 95% confidence interval (CI) of mental health and physical activity relating to all-cause mortality. RESULTS During the follow-up period (11.8±4.1 years), a total of 218 (36.6%) deaths occurred from all-causes. Participants in the inactive group had significantly higher cognitive impairment (p =0.046), depressive symptoms (p =0.001), and all-cause mortality (p=0.037) than those in the active group. Compared to participants in the normal (HR=1), cognitive impairment (HR=2.229, 95% CI=1.645-3.020, p<0.001), and depressive symptoms groups (HR=1.542, 95% CI=1.136-2.091, p<0.001), those in the inactive group had significantly higher HR related to all-cause mortality. However, in the active group, cognitive function and depressive symptoms were not associated with all-cause mortality. CONCLUSIONS The current finding suggests that the promotion of physical activity may play an important role in preventing premature death from all-causes in persons with disability, especially among those with mental health problems.","PeriodicalId":17892,"journal":{"name":"Korean Journal of Sport Science","volume":"48 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78242962","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-09-30DOI: 10.24985/kjss.2022.33.3.497
Danielle H. Lee
PURPOSE This study aimed to explore and analyze research impact of Korean ’Kinesiology’ studies, especially in the aspects of international research impact gauged by the citation counts from Scopus bibliometric database. This study contributes to relevant literature in that it is the first endeavour to evaluate the pattern about how the entire Korean ’Kinesiology’ articles have been cited in international articles.METHODS TTwo types of sample articles were collected in this paper. Firstly, 19,867 target articles published in 23 KCI-accredited Korean ’Kinesiology’ related journals from 2001 to 2015. For the Korean target articles, secondly, international citing articles that took advantage of target articles as references were collected from Elsevier’s Scopus database separately. RESULTS As a result, just 5% of the target articles were cited at least once for five years after publication. The topics of top cited research topics include ‘exercise’, ‘physical activity,’ ‘Alzheimer’s disease, ‘ ’body composition’ and ‘insulin resistance’. Besides, the Korean 'Kinesiology’ articles were the most influential to articles about ‘Medicine,’ ‘Health Professions,’ ‘Multidisciplinary,’ ‘Social Sciences,’ and ‘Nursing’. CONCLUSIONS This study showed that one Korean ’Kinesiology’ article was cited 0.09 times on an average in international Scopus-indexed articles. Considering that the average number of citations in domestic articles is 5.6 times, the international citations of Korean ’Kinesiology’ research still have much room for growth. However, this study confirmed that the scope of the international impact is not limited to a few countries, but is spreading to various countries, and its impact has been growing in recent years.
{"title":"Analyzing International Research Impact of Korean Kinesiology Articles","authors":"Danielle H. Lee","doi":"10.24985/kjss.2022.33.3.497","DOIUrl":"https://doi.org/10.24985/kjss.2022.33.3.497","url":null,"abstract":"PURPOSE This study aimed to explore and analyze research impact of Korean ’Kinesiology’ studies, especially in the aspects of international research impact gauged by the citation counts from Scopus bibliometric database. This study contributes to relevant literature in that it is the first endeavour to evaluate the pattern about how the entire Korean ’Kinesiology’ articles have been cited in international articles.METHODS TTwo types of sample articles were collected in this paper. Firstly, 19,867 target articles published in 23 KCI-accredited Korean ’Kinesiology’ related journals from 2001 to 2015. For the Korean target articles, secondly, international citing articles that took advantage of target articles as references were collected from Elsevier’s Scopus database separately. RESULTS As a result, just 5% of the target articles were cited at least once for five years after publication. The topics of top cited research topics include ‘exercise’, ‘physical activity,’ ‘Alzheimer’s disease, ‘ ’body composition’ and ‘insulin resistance’. Besides, the Korean 'Kinesiology’ articles were the most influential to articles about ‘Medicine,’ ‘Health Professions,’ ‘Multidisciplinary,’ ‘Social Sciences,’ and ‘Nursing’. CONCLUSIONS This study showed that one Korean ’Kinesiology’ article was cited 0.09 times on an average in international Scopus-indexed articles. Considering that the average number of citations in domestic articles is 5.6 times, the international citations of Korean ’Kinesiology’ research still have much room for growth. However, this study confirmed that the scope of the international impact is not limited to a few countries, but is spreading to various countries, and its impact has been growing in recent years.","PeriodicalId":17892,"journal":{"name":"Korean Journal of Sport Science","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89884544","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-06-30DOI: 10.24985/kjss.2022.33.2.141
Soo-Hyun Park, Taewan Kim, E. Yoon, Jinkyung Cho, Hongsun Song
PURPOSE The purpose of this review was to summarize the current knowledge on the trends in athletes’ health problems (and their preventive strategies) caused by low energy availability (LEA) and relative energy deficiency in sports (RED-S).METHODS In this narrative review, we summarized previous studies by searching the literature in the PubMed, Google Scholar, and Science Direct databases.RESULTS Energy availability (EA) refers to the amount of energy from caloric intake used for exercise, and a LEA is considered as a surrogate marker of RED-S. In several previous studies, chronic low energy availability in female athletes has been reported to cause health problems such as endocrine dysfunctions, immunosuppression, and psychological disorders, and to also affect the hypothalamic-pituitary-gonadal (HPC) axis and bone health. Moreover, it has been suggested that an increase in injury risk and a decrease in exercise performance may occur.CONCLUSIONS Since it can be difficult to recover from the health deteriorations caused by RED-S, early detection (of related signs and symptoms) and prevention are very important. Therefore, athletes, coaches, and parents need to develop educational programs that ease the recognition of the problems caused by various symptoms related to RED-S and promote educational interventions.
{"title":"Recent Advance on Relative Energy Deficiency in Female Athlete","authors":"Soo-Hyun Park, Taewan Kim, E. Yoon, Jinkyung Cho, Hongsun Song","doi":"10.24985/kjss.2022.33.2.141","DOIUrl":"https://doi.org/10.24985/kjss.2022.33.2.141","url":null,"abstract":"PURPOSE The purpose of this review was to summarize the current knowledge on the trends in athletes’ health problems (and their preventive strategies) caused by low energy availability (LEA) and relative energy deficiency in sports (RED-S).METHODS In this narrative review, we summarized previous studies by searching the literature in the PubMed, Google Scholar, and Science Direct databases.RESULTS Energy availability (EA) refers to the amount of energy from caloric intake used for exercise, and a LEA is considered as a surrogate marker of RED-S. In several previous studies, chronic low energy availability in female athletes has been reported to cause health problems such as endocrine dysfunctions, immunosuppression, and psychological disorders, and to also affect the hypothalamic-pituitary-gonadal (HPC) axis and bone health. Moreover, it has been suggested that an increase in injury risk and a decrease in exercise performance may occur.CONCLUSIONS Since it can be difficult to recover from the health deteriorations caused by RED-S, early detection (of related signs and symptoms) and prevention are very important. Therefore, athletes, coaches, and parents need to develop educational programs that ease the recognition of the problems caused by various symptoms related to RED-S and promote educational interventions.","PeriodicalId":17892,"journal":{"name":"Korean Journal of Sport Science","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90608706","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-06-30DOI: 10.24985/kjss.2022.33.2.228
Bang-Chool Kim, S. Kwon, Tai-woo Kim, Doheung Lee
PURPOSE In this study, in-depth interviews were conducted with track-and-field athletes and leaders who participated in the Tokyo Olympics. The study aimed to present practical measures for the development of Korean track and field, which people at the forefront of Korean track and field thought.METHODS In-depth interviews were conducted using semi-structured questions for a total of five track-and-field national athletes and four track and field coaches.RESULTS A total of 39 subcategories and 104 concepts were derived with regard to four research questions: the process up to the Tokyo Olympics, the actual condition of Korean track and field, a comparison with track-and-field power nation, and practical measures for becoming track-and-field power nation.CONCLUSIONS Practical measures are needed to improve and develop the competitiveness of Korean track and field, which is expected to improve its competitiveness and help develop Korean track and field in the future.
{"title":"Study on Practical Measures for the Development of Korean Track and Field","authors":"Bang-Chool Kim, S. Kwon, Tai-woo Kim, Doheung Lee","doi":"10.24985/kjss.2022.33.2.228","DOIUrl":"https://doi.org/10.24985/kjss.2022.33.2.228","url":null,"abstract":"PURPOSE In this study, in-depth interviews were conducted with track-and-field athletes and leaders who participated in the Tokyo Olympics. The study aimed to present practical measures for the development of Korean track and field, which people at the forefront of Korean track and field thought.METHODS In-depth interviews were conducted using semi-structured questions for a total of five track-and-field national athletes and four track and field coaches.RESULTS A total of 39 subcategories and 104 concepts were derived with regard to four research questions: the process up to the Tokyo Olympics, the actual condition of Korean track and field, a comparison with track-and-field power nation, and practical measures for becoming track-and-field power nation.CONCLUSIONS Practical measures are needed to improve and develop the competitiveness of Korean track and field, which is expected to improve its competitiveness and help develop Korean track and field in the future.","PeriodicalId":17892,"journal":{"name":"Korean Journal of Sport Science","volume":"52 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82036149","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-06-30DOI: 10.24985/kjss.2022.33.2.211
Yun-Ji Jeong, Jun-Hyeok Kang, J. Lee
PURPOSE This study aimed (1) to analyze the behavioral intention and use behavior among the consumers of online home training contents via YouTube by employing the unified theory of acceptance and use of technology (UTAUT); (2) to test the moderating effects of risk perception toward the coronavirus (COVID-19) infection, and 3) to test differential impacts of generational difference across millennial and baby boom generations.METHODS A total of 400 questionnaires were distributed, and 383 samples were used for the final analysis after excluding 17 incomplete responses. Data were analyzed using the SPSS 25.0 and AMOS 22.0.RESULTS It was found that (1) the performance expectancy, the effort expectancy, and the social influence had positive effects on behavioral intention; (2)the facilitating condition had negative effects on the use behavior; (3) the behavioral intention had positive impact on the use behavior. Moreover, the risk perception toward the COVID-19 infection did not have moderating impacts on the UTAUT model, whereas generational differences did.CONCLUSIONS Our results suggest that the marketing strategy that improves exercise performance, convenience, and social influencing factors may be key to home training customers' behavioral intention and use behavior. Furthermore, home training material makers should recognize that the features and infrastructure required for the two generations are distinct and develop a separate marketing strategy for each.
{"title":"Analysis of Online Home Training Users’ Behavioral Intention and Use Behavior Based on the UTAUT Model: Moderating Roles of Risk Perception toward the COVID-19 Infection and Generational Difference","authors":"Yun-Ji Jeong, Jun-Hyeok Kang, J. Lee","doi":"10.24985/kjss.2022.33.2.211","DOIUrl":"https://doi.org/10.24985/kjss.2022.33.2.211","url":null,"abstract":"PURPOSE This study aimed (1) to analyze the behavioral intention and use behavior among the consumers of online home training contents via YouTube by employing the unified theory of acceptance and use of technology (UTAUT); (2) to test the moderating effects of risk perception toward the coronavirus (COVID-19) infection, and 3) to test differential impacts of generational difference across millennial and baby boom generations.METHODS A total of 400 questionnaires were distributed, and 383 samples were used for the final analysis after excluding 17 incomplete responses. Data were analyzed using the SPSS 25.0 and AMOS 22.0.RESULTS It was found that (1) the performance expectancy, the effort expectancy, and the social influence had positive effects on behavioral intention; (2)the facilitating condition had negative effects on the use behavior; (3) the behavioral intention had positive impact on the use behavior. Moreover, the risk perception toward the COVID-19 infection did not have moderating impacts on the UTAUT model, whereas generational differences did.CONCLUSIONS Our results suggest that the marketing strategy that improves exercise performance, convenience, and social influencing factors may be key to home training customers' behavioral intention and use behavior. Furthermore, home training material makers should recognize that the features and infrastructure required for the two generations are distinct and develop a separate marketing strategy for each.","PeriodicalId":17892,"journal":{"name":"Korean Journal of Sport Science","volume":"9 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84154884","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-06-30DOI: 10.24985/kjss.2022.33.2.152
Eui-Soo Kang, Da-Yen Kang, No-Hyun Park, Jinwook Chung
PURPOSE This study aimed to investigate the effects of trunk stabilization exercise (TSE) with abdominal expansion maneuver (AEM) that lasted for 8 weeks on postural stability and functional movement in college athletes.METHODS Twenty college athletes participated in the program (AEM=9, Control=11) and were subjected to 8-week TSE. The AEM group performed exercise by applying AEM techniques during TSE, and control group performed TSE without breathing-related instructions. Both groups measured postural stability with lower-quarter Y-balance test (LQYBT) and functional movement with functional movement screen (FMS) before and after applying TSE to verify the interaction before and after this study with the two groups. Two-way repeated analysis of variance was performed to evaluate the differences between groups and time for an absolute value of LQYBT and FMS, followed by Bonferroni’s multiple comparison tests for post-hoc analysis.RESULTS As a result of the left and right LQYBT, there was a significant difference between the time x group (p=.041, p=.033), and post-hoc analysis indicated that there was a significant difference between the AEM and control groups (p=.000, p=,000). Furthermore, the FMS total score indicated that there was a significant difference between the time × group (p=.039), and the post-hoc analysis showed the AEM group had significant results (p=.001), while there were no significant results in the control group (p=.255).CONCLUSIONS Application of AEM during TSE seems to be effective with regard to postural stability and functional movement in college athletes.
目的探讨持续8周的躯干稳定运动(TSE)联合腹部扩张运动(AEM)对大学生运动员体位稳定性和功能运动的影响。方法20名大学生运动员(AEM=9, Control=11)接受为期8周的TSE治疗。AEM组在TSE期间应用AEM技术进行运动，对照组在没有呼吸相关指导的情况下进行TSE。两组在应用TSE前后分别用下季度y平衡测试(LQYBT)测量体位稳定性，用功能运动屏幕(FMS)测量功能运动，验证两组在本研究前后的相互作用。采用双向重复方差分析评价各组间和时间间LQYBT和FMS绝对值的差异，采用Bonferroni多重比较检验进行事后分析。结果左、右两组间LQYBT差异有统计学意义(p=。041, p=.033)，事后分析表明AEM组与对照组之间存在显著差异(p=. 033)。000, p = 000)。此外，FMS总分显示时间×组之间有显著差异(p= 0.039)，事后分析显示AEM组有显著结果(p= 0.001)，而对照组无显著结果(p= 0.255)。结论:在TSE过程中应用AEM对大学生运动员的姿势稳定性和功能运动是有效的。
{"title":"Effects of Trunk Stabilization Exercise Using the Abdominal Expansion Maneuver on Postural Stability and Functional Movement in College Athletes","authors":"Eui-Soo Kang, Da-Yen Kang, No-Hyun Park, Jinwook Chung","doi":"10.24985/kjss.2022.33.2.152","DOIUrl":"https://doi.org/10.24985/kjss.2022.33.2.152","url":null,"abstract":"PURPOSE This study aimed to investigate the effects of trunk stabilization exercise (TSE) with abdominal expansion maneuver (AEM) that lasted for 8 weeks on postural stability and functional movement in college athletes.METHODS Twenty college athletes participated in the program (AEM=9, Control=11) and were subjected to 8-week TSE. The AEM group performed exercise by applying AEM techniques during TSE, and control group performed TSE without breathing-related instructions. Both groups measured postural stability with lower-quarter Y-balance test (LQYBT) and functional movement with functional movement screen (FMS) before and after applying TSE to verify the interaction before and after this study with the two groups. Two-way repeated analysis of variance was performed to evaluate the differences between groups and time for an absolute value of LQYBT and FMS, followed by Bonferroni’s multiple comparison tests for post-hoc analysis.RESULTS As a result of the left and right LQYBT, there was a significant difference between the time x group (p=.041, p=.033), and post-hoc analysis indicated that there was a significant difference between the AEM and control groups (p=.000, p=,000). Furthermore, the FMS total score indicated that there was a significant difference between the time × group (p=.039), and the post-hoc analysis showed the AEM group had significant results (p=.001), while there were no significant results in the control group (p=.255).CONCLUSIONS Application of AEM during TSE seems to be effective with regard to postural stability and functional movement in college athletes.","PeriodicalId":17892,"journal":{"name":"Korean Journal of Sport Science","volume":"20 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81113552","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-06-30DOI: 10.24985/kjss.2022.33.2.180
Chi-sun Choi, Won-je Cho, Kyoung-bae Kim
PURPOSE This study aimed to explore the functional movement in rope climbing.METHODS The rope climbing experiment included 16 healthy young male participants, and the methods of hand, cross-leg, and foot-hooking climbing were employed. The muscle activity and joint range of motion were measured and analyzed using EMG (Electromyography) and IMU (Inertial Measurement Unit) sensors. One-way analysis of variance was conducted (α<.05).RESULTS The activity of the forearm and biceps muscle was lower in cross-leg and foot-hooking climbing compared to hand climbing (p<.01), and the rectus femoris muscle activity in cross-leg climbing was smaller than that in hand climbing (p<.05). Furthermore, the adductor muscle activity in cross-leg climbing was higher than that of other types (p<.01). The range of motion for the elbow and shoulder flexion was smaller in hand climbing than in other types (p<.05); furthermore, the range of motion in the pelvis, thigh, and knee joint was the smallest in cross-leg climbing (p<.05).CONCLUSIONS Because the pulling muscles such as the forearm, biceps, pectoralis major, and latissimus dorsi play an important role in the entire climbing motion, it is necessary to train the upper-body pulling-muscle group along with strengthening the core and lower body muscles.
{"title":"Exploratory Study of Functional Movement in Rope Climbing","authors":"Chi-sun Choi, Won-je Cho, Kyoung-bae Kim","doi":"10.24985/kjss.2022.33.2.180","DOIUrl":"https://doi.org/10.24985/kjss.2022.33.2.180","url":null,"abstract":"PURPOSE This study aimed to explore the functional movement in rope climbing.METHODS The rope climbing experiment included 16 healthy young male participants, and the methods of hand, cross-leg, and foot-hooking climbing were employed. The muscle activity and joint range of motion were measured and analyzed using EMG (Electromyography) and IMU (Inertial Measurement Unit) sensors. One-way analysis of variance was conducted (α<.05).RESULTS The activity of the forearm and biceps muscle was lower in cross-leg and foot-hooking climbing compared to hand climbing (p<.01), and the rectus femoris muscle activity in cross-leg climbing was smaller than that in hand climbing (p<.05). Furthermore, the adductor muscle activity in cross-leg climbing was higher than that of other types (p<.01). The range of motion for the elbow and shoulder flexion was smaller in hand climbing than in other types (p<.05); furthermore, the range of motion in the pelvis, thigh, and knee joint was the smallest in cross-leg climbing (p<.05).CONCLUSIONS Because the pulling muscles such as the forearm, biceps, pectoralis major, and latissimus dorsi play an important role in the entire climbing motion, it is necessary to train the upper-body pulling-muscle group along with strengthening the core and lower body muscles.","PeriodicalId":17892,"journal":{"name":"Korean Journal of Sport Science","volume":"74 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77549318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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