Purpose This study was to investigate the effect of various motor leaning techniques which were applied on the youth soccer training program. Methods 12 elementary soccer players and the director of R youth soccer team have participated in the study. The expertise level of youth soccer team were ranged from beginner to advance. To investigate the effect of new soccer training program we adopted a methodology of action research. We first analyzed the problems of original youth soccer program and reconstructed the training program considering of individualized characteristics. The 3 main problems of original soccer program (1. feedback provisions 2. difficulty of task level 3. time distribution of training) have been reconstructed by four motor learning experts. For the data analysis, several qualitative analyze techniques were conducted to observe player’s improvements. Results First, participants had a better understanding on proper motion of shooting and lifting skills from the guidance techniques. Second, utilizing the personal skills and team cohesion have been improved by the modified rules and space competition. Third, the ability of active problem solving have been improved from the self-learning environment. Forth, the player’s confidence level have been improved by eliminating performance outcome. Conclusions From the aspects of variety circumstances in sport education field, the comprehensive motor learning program should be developed and applied.
[Purpose] The purpose of this study was to determine the influence of complex exercise and chromium supplement on healthe-related physical fitness, appetite regulating hormones, and diabetes risk factors in obese elementary school students. [Methods] The subjects were 32 obese elementary students over 25 kg/m2 to BMI, 8 complex exercise with high chromium supplement group (CE+HC), 8 complex exercise with low chromium supplement group (CE+LC), 8 complex exercise with placebo group (CE+PL), and 8 placebo group (PL). The subjects have performed the exercise program for 70 minutes a day and 3 times a week with aerobic and anaerobic exercise during 12 weeks. Also, low and high chromium supplement group took a peel 50 ug and 400 ug respectively at the same time and place. [Results] There were significant decreases in body fat to CE+HC compared with CE+PL (p<.05) and significant increase in muscle mass compared with CE+PL (p<.05). However, there were no significant differences in body weight, BMI, muscular strength, muscular endurance, and flexibility between groups. For appetite regulating hormones, there is a significant difference to ghrelin in CE+HC compared with CE+PL (p<.05) and there were significant differences to glucose and insulin significantly decreased in CE+HC compared with CE+PL (p<.05) in diabetes risk factors. [Conclusion] In conclusion, there were positive responses for body composition and diabetes risk factors for the twofold cases through complex exercise and high chromium supplement, but not for physical fitness and appetite regulating hormones.
PURPOSE This study aimed to investigate the effects of continuous exercise and the accumulation of short-duration exercise for 12 weeks on body composition, physical fitness, and lifestyle disease indices in overweight men in their 30s. METHODS Participants in the continuous exercise group (CE; n=13) performed a circuit exercise program of 30 min/session, 3 sessions/week for 12 weeks. Participants in the accumulation of short duration exercise group (ASE; n=12) performed the same exercise time of 30 min per day, divided into three sessions of 10 min. Body composition, physical fitness, and lifestyle disease indices were measured pre- and post-test and were compared by utilizing a repeated two-way ANOVA. RESULTS 1) Regarding body composition, body weight, body mass index, skeletal muscle mass, waist circumference, and fat mass decreased significantly, while hip circumference increased significantly in the CE group. Waist circumference and skeletal muscle mass decreased significantly, while hip circumference increased significantly in the ASE group. 2) Regarding physical fitness, right grip strength, sit and reach, sit up, and maximal oxygen uptake increased significantly in both groups. 3) Regarding hypertension indices, there were no significant differences in both groups, but they showed a tendency to improve. 4) Regarding hyperlipidemia indices, triglycerides (TG) decreased significantly in both groups, and total cholesterol (TC) decreased significantly in the CE group. 5) Regarding diabetes indices, there were no significant differences in both groups, but a tendency to improve was noticed. 6) Regarding arteriosclerosis indices: TG/high density lipoprotein-cholesterol ratio decreased significantly in both groups, and the TC/high density lipoprotein-cholesterol ratio decreased significantly in the CE group. CONCLUSIONS We concluded that both the accumulation of short duration exercise and continuous exercise can be effective in improving body composition, physical fitness, and lifestyle disease in overweight men.
[Purpose] This study evaluated the predictive power of Body Mass Index (BMI) for metabolic syndrome in older adults across pre-, during-, and post-COVID-19 periods, and examined the effects of metabolic syndrome factors on BMI by income level, aiming to inform elderly health management and crisis-related policies. [Methods] Data from 6,242 older adults (aged 65–80) were drawn from the 2019–2022 Korea National Health and Nutrition Examination Survey. Income was divided into quartiles, and time was segmented into pre-, during-, and post-pandemic periods. Multiple linear regression was used to assess the effects of metabolic syndrome factors (diabetes, abdominal obesity, low HDL, hypertension, hypertriglyceridemia) on BMI by income and period. Receiver Operating Characteristic (ROC) analysis evaluated BMI’s predictive power for metabolic syndrome. Significance was set at .05. [Results] Abdominal obesity and low HDL consistently influenced BMI across all groups. In the lowest income group, hypertension increasingly affected BMI during and after the pandemic. BMI Area Under the Curve (AUC) values peaked during the pandemic in this group, while the highest income group showed stable predictive power. [Conclusion] The COVID-19 pandemic had a differential impact on the association between BMI and metabolic syndrome among older adults according to income level. In low-income older adults, the predictive power of BMI for metabolic syndrome increased during the mid-pandemic period, while it remained stable across all periods in high-income groups. Systematic health management programs and policy interventions targeting low-income older adults are required to reduce health disparities during public health crises.
Purpose A number of start-ups in the form of introducing sports contents in Korea as a new market are in progress, and appropriate support for each step is needed to increase the chances of a success. Therefore, the purpose of this study is to explore the entrepreneurial process of introducing and spreading newly created or developed sports content into a new market, Korea, by focusing on the innovation diffusion process model. Methods To derive the results, a qualitative research method was used, data were collected through in-depth interviews, literature search, and observation methods, and analyzed through categorization and itemization in stages based on content analysis results. Results Looking at the results, content recognition and problem identification were derived in the exogenous shocks stage, and the organization unity of internal and external stakeholder was confirmed in the formal coalition of opinion leaders stage. At the stage of internal communication between the opinion leaders of the social system, the expert communication in the same or similar field and external area appeared and the indirect experience also derived. In the decision to select a specific innovation stage, activities to belong to an international organization, to establish a new organization, and to secure idle space appeared, and at the stage of recruitment and/or the establishment of boundary spanners, efforts to secure internal and external human resource within the organization and to build an organization form appeared. In the stage of develop and introduce the innovation, online communication channels were established. In the stage of using mass media outlets, media articles, lectures, and academic conferences were used, and in the stage of actual diffusion of an innovation, experience and education programs were conducted, competition and exhibitions were held, venues were built, and actual international competitions were participated. At the stage of decisions to continue, discontinue, or re-invent the existing innovation must occur, evaluation was made by personnel inside and outside the organization. Conclusions It is possible to increase the success of start-up by creating a support system that can fill the necessary parts for each stage of start-up based on the derived activities for each stage.
PURPOSE This study aimed to examine the effects of an 8-week gluteus medius strengthening exercise on back pain, balance, and strength in female office workers with low back pain. METHODS The participants of this study were female office workers aged 30 to 48 years old who reported low back pain on a visual analogue scale (VAS) ranging from 3 to 7. Twenty-six participants were randomly assigned to the exercise (n=13) and control (n=13) groups. The study applied a gluteus medius strengthening program to the exercise group for 8 weeks, three times a week, and 60 minutes per session. The participants in the control group were asked to maintain their normal life patterns during the period of intervention. Data collected from the test were analyzed through repeated two-way ANOVA, paired t-test, and independent t-test. RESULTS First, there has been a significant decrease in the pain level, as evidenced by VAS and Korean oswestry disability index (KODI) scores. Second, there was a statistically significant improvement in both static and dynamic balance capabilities. Last, back strength also significantly improved. CONCLUSIONS Application of the gluteus medius strengthening exercise appears to be effective for low back pain, static and dynamic balance capabilities, and back strength.
PURPOSE The quiet eye (QE) is defined as the final fixation time that is a specific target prior to initiating movement. This study aimed to identify the cause of QE in golf putting and to present an efficient practice method for improving putting skills. METHODS Thirty participants were randomly assigned to one of three groups. Each group practiced golf putting in different ways for two days. RESULTS The QE group showed a significant difference in putting scores, which was higher than that of the control group. The visual-occlusion group showed no difference compared to the other groups in terms of putting scores. The QE group showed a significant difference in terms of QE in the retention and competition tests compared to the pretest. The control group tended to have a slightly longer QE in competition tests compared to the pretest. The visualocclusion group showed no statistically significant difference in QE based on the period. All three groups had significantly longer swing times over the selected period. There was no significant difference in terms of the alpha power of the occipital lobe based on group and period. CONCLUSIONS The position of the visual-occlusion group became stable. However, the QE did not lengthen. The QE group had a longer QE. Furthermore, the control group that practiced with their eyes open tended to have longer QE. Therefore, QE may be related to visual-based cognitive processing rather than posturalkinematics. Finally, this study proved that QE practice is a more efficient method for novices in golf putting.
PURPOSE This study aimed to investigate the effects of a 10-week complex training program on physical fitness and running performance in male marathon club members aged 20–30 years. METHODS Thirty participants were recruited and randomly assigned to either a training group (TR) or a control group (CON). Following participant dropout, data from 14 participants in the TR and 13 in the CON were included in the final analysis. Participants in the TR completed complex training sessions lasting 60 minutes per session, twice per week, for 10 weeks, whereas the CON maintained their usual lifestyle patterns. Dependent variables—including body composition, physical fitness, and running performance—were measured pre- and post-intervention. Comparisons were made between groups and across time points using a two-way repeated measures ANOVA. RESULTS 1) Physical fitness: Squat 1RM, trap bar deadlift 1RM, and countermovement jump performance increased significantly in the TR; 2) Regarding running performance, drop jump and reactive strength index increased significantly in the TR; and 3) Running performance: time to exhaustion decreased significantly in the CON, whereas it was maintained in the TR, suggesting a protective effect of the complex training program. CONCLUSIONS The 10-week complex training program positively affected muscular strength, power, elastic utilization ability, and endurance (time to exhaustion) in male marathon club members. However, its effects were limited with respect to running efficiency, fatigue resistance, and rate of force development. Future studies should consider adjusting training intensity and volume and diversifying exercises to develop more effective programs for enhancing running performance.
PURPOSE This study developed and tested a theoretical research model delineating the relationships between sports consumers’ team identity and their response to regional identity, sense of community, and community contributions. METHODS To achieve the purpose of this study, a total of 1,196 spectators who attended professional baseball games were surveyed. For the data analysis, confirmatory factor analysis, convergent validity, discriminate validity, and composite reliability were performed to confirm the validity and reliability of the scale through AMOS 24.0. Research model and hypothesis testing were conducted using structural equation modeling, which used data from ten different professional baseball team area contexts. RESULTS The results provide empirical evidence of the positive influence of sports consumers’ regional identity and sense of community on team identity toward community contributions in sporting event area contexts. CONCLUSIONS This study confirmed the role of regional identity and sense of community in building professional sports team identities and community contributions.
Purpose The purpose of this study is to find effective skin scuba activation factors and to provide basic data that extend the scope of research related to skin scuba. Methods Delphi method was used and the experts were categorized by experts to analyze the results. The questionnaires collected through the 2nd and 3rd delphi surveys were SPSS win ver. 22.0 and Microsoft Office Excel 2013 to calculate mean, standard deviation, median, and coefficient of variation. The concrete conclusions are as follows. Conclusions First, in terms of organization sub-factor, fostering sports-for-all participants and college club came out to be very effective and followed by cooperation system with Ministry of Public Safety and Security and Ministry of Oceans and Fisheries, strengthening cooperation and exchange with other education organizations, initializing new scuba diving education organization management and inspection institution and establishing scuba diving education organization. Second, in terms of facility/equipment sub-factor, factors that cause most effectiveness came out as expanding scuba-diving installation, developing connection system with medical department, enlarging indoor-diving education facilities, improving scuba diving equipment, consecutively. Third, in terms of leader sub-factor, training instructor through leader personality education and verification came out to be the most effective, followed by objectifying professional education institution leader training system, improving leader treatment. Fourth, in terms of program sub-factor, it is found that safety education program as the most effective factor, coming next with environment education/professional manpower training program, developing various programs, lastly, inventing insurance product. Fifth, in terms of advertisement sub-factor, as in order of guiding publics to change their view towards scuba-diving, expanding scuba-diving related events and establishing advertisement system had its effectiveness. Sixth, in terms of policy sub-factor, establishing cooperation system among administration departments came out to be most effective and then improving related law-system.
