Purpose The purpose of this study was to find out whether they can contribute to the revitalization of urban communities. Methods This study conducted in-depth interviews and focus group interviews to collect qualitative data. The collected data were analyzed through the domain analysis and the classification analysis. Results The roles of sports club managers in leadership and network intermediaries were very important in the accumulation of social capital. The formation of staff members who work for the managing and activating sports clubs has created trust and satisfaction with the sport. Their activities contributed to the formation of social capital in sports clubs and played an important role in revitalizing sports clubs. Conclusions Sports club managers performed important roles in building trust and network with the club members and even other clubs through their leadership. These management activities are possibly contributed to the creation and accumulation as social capital. Therefore this research also showed the possibilities of extension to local community of the social capital through sports clubs.
Purpose The purpose of this study was to investigate the effect of vibration therapy on the functional, imaging, and mechanical properties in elbow flexor after a single bout eccentric exercise. Methods Twenty-three untrained adults male participated in this study [CON(control)= 11, VT(vibration)= 12]. Volunteers performed 5-set of 6 maximal (90˚/s) eccentric contractions of the non-dominant elbow flexor on a isokinetic dynamometer. Vibration was applied using a side alternating vibratory platform (12 Hz frequency, 4 mm amplitude) with 3-set of 60 sec during 3-day after eccentric exercise. Results The VT group showed a reduction in exercised-induced muscle damage(EIMD) symptoms in the form of attenuating muscle swelling and echo intensity (P<.05) compared with the CON, mechanical properties were improvement (P<.05) compared with the CON. However, muscle soreness, range of motion and maximal voluntary isometric contraction were not significant (P<.05). Conclusion As currently practiced, vibration therapy after eccentric exercise may reduce EIMD by improving quality of the muscle, suggesting that this therapy is an effective strategy for EIMD.
Purpose The purpose of this study is to identify policy learning in the government-led sport club policy and to analyze its type of the policy learning. Methods Sport club related documents such as policy plans, evaluation reports and journals published from 2004 to 2018 were analyzed by framework of this study. For identifying the policy learning, 12 items were determined by policy goals, policy means and policy targets. Each item was placed on four quadrants of the X-axis(benefits and problems) and the Y-axis(reflected and unreflected), and was categorized. Results This study found out the five types of policy learning. A 'benefit-sustained type' is the type that benefits of previous policy has been led to the benefits of next policy and a ‘problem-amended type’ is the type that previous problem is solved by reflecting on the following policy plans. A ‘problem-continued type’ is the type of problem that has not been solved. On the other hand, A ‘Benefit-diminished type’ and the ‘problem-neglected type’ are that previous results were not reflected. It indicates that those types have not performed the policy learning. Conclusions In order to expand the benefits of the sport club policy and to solve the problem, we should recognize the policy process and environment are not static and do policy learning. Furthermore, it suggests that there should do policy learning on what Korean sport club would be.
Purpose The purpose of this study is to investigate the comparison of peak resultant force in taekwondo body dollyeochagi in accordance with Jejariditgi existence and the position of kicking leg. Methods Twelve students who majored taekwondo participated in this experiment. They have a forth dan(degree) black belt in taekwondo. The peak resultant force was measured 12 times(2 jejariditgi existence × 2 position of kicking leg × 3 times). Two-way ANOVA with repeated measures was used to analyze the data. Results There was significant difference in interaction effect of peak resultant force in taekwondo in accordance with jejariditgi existence and the position of kicking leg. And there was significant difference in main effect of peak resultant force in taekwondo in accordance with jejariditgi existence and the position kicking leg. Higher peak resultant force was shown in body dollyeochagi with jeariditgi as compared with non jejariditgi. And higher peak resultant force was shown in rear kicking leg as compared with front kicking leg. Conclusions The results show that jejariditgi is a factor affecting the peak resultant force. Comparison of peak resultant force in taekwondo body dollyeochagi in accordance with jejariditgi existence and the position of kicking leg will provide strategies for coaches and athletes to perform improved taekwondo dollyeochagi.
Purpose Sperm quality and function are reduced by environmental factors (e.g., obesity), leading to increased infertility worldwide. Therefore, the purpose of this review paper was to investigate the effects of obesity and exercise training on sperm quality and function in animal and human models. Methods In order to determine the effects of obesity and exercise on sperm quality, motility, morphology, testosterone, oxidative stress, inflammation, we reviewed previous literatures with MEDLINE, PubMed, and Scopus databases. Results The most important factor to control the sperm motility is calcium ion, which is performed by the protein of CatSper (Cation Channel of Sperm). Obese men showed the decrease of number, concentration, motility, and volume in sperm, resulting in delayed or failed fertility. However, regular exercise training increased sperm-mediated factors including number, motility, and morphology, and festicular function-mediated factors including sperm concentration and serum testosterone. Conclusions While obesity exacerbates sperm quality and function in men, regular exercise training with moderate intensity increases sperm number and motility and reduces oxidative stress and inflammation, leading to the improvement of men’s fertility.
Purpose The purpose of this study was to analyze the propensity to consume the consumer of the baseball equipments who have difference of the product preference by regulatory focus, and who have construal level and suitable message framing. Methods Populations are consumers who have purchased the baseball equipments before, and the sampling groups, five different society baseball group’ league from Seoul and Kyeongi-do, were distributed, 318 copies, by convenience sampling. The questionnaire proceeded by three-way completely randomized design with stimulated sentences of four different advertisement compartmentalized by the regulatory focus, construal level and message framing. The analysis utilized SPSS 21.0 to perform the frequency analysis, manipulation check, independent t-test, two-way ANOVA, and Scheffe was used to post-hoc. Therefore, the result of this study is as below. Results First, after analyzing the distinction of the regulatory focus of the consumers of baseball equipments, the preference of the consumer who has improving focus was higher than that of consumer who has the prevention focus. Second, preference differentiation analyzed by construal level and the message framing of the consumer of the improving focus, the preference was higher when the message framing was positive, and the construal level was in short time. Third, preference differentiation analyzed by construal level and the message framing of the consumer of the prevetnion focus, there was no difference of the preference of the equipments followed by the construal level and message frame for prevention focus consumers.
Purpose The purpose of this study was to establish the differences of anticipating accuracy and confidence according to fencing expertise and spatial occlusion region. Methods For the purpose of this study, the anticipation ability of 6 high-level fencing players and 6 low-level fencing players were analyzed. All subjects performed the 60 tasks of anticipating the attack positions(thorax, thigh, toe) from observing the fencing video screen using spatial occlusion technique. The spatial occlusion technique was used in 6 particular body of opponent’s movement. For statistic analysis, data was analyzed through independent T-test measure. Moreover, Paired t-test were used as follow-up analysis. Results The results of the study were as follows: In terms of accuracy anticipation, the main effect of expertise was significantly different. Specifically, when the spatial occlusion technique was applied in head, left leg, arm, and a foil, the accuracy of anticipation was significantly different. Moreover, comparing with no-occlusion condition, anticipation accuracy decreased when spatial occlusion technique was applied in arm and foil. In terms of confidence, there was no significant difference between level of expertise. Conclusions In order to effectively anticipate the opponent’s movement in fencing sports, it is necessary to focus on the visual cues of arm/shoulder, and the foil. Especially, focusing on the foil movement might provide the core informations on anticipation ability.
[Purpose] The purpose of this study is to draw practical implications applicable to the field through analysing serial multiple mediator model of self-leadership, psychology empowerment, job satisfaction and organizational citizenship behavior. [Methods] In order to achieve the purpose of this study, we surveyed Korea national league players(187 usable sample). Four hypotheses were tested using frequency analysis, exploratory factor analysis, reliability analysis, correlation analysis and PROCESS macro through SPSS statistics. [Results] The results are as follows. First, self-leadership has a significant effect on organizational citizenship behavior. Second, mediating effects of psychological empowerment between self-leadership and organizational citizenship behavior were significant. Third, mediating effects of job satisfaction between self-leadership and organizational citizenship behavior were significant. Fourth, serial multiple mediator effects leading to self-leadership→psychological empowerment→job satisfaction→organizational citizenship behavior were significant. [Conclusions] Korea national league players must perform self-leader, goal setting, self-observation, self criticism, constructive thinking strategies, dedication and voluntary attitude for clubs and colleagues. The team’s coaches should strive to praise the athletes for their pride, provide appropriate feedback, prevent job burnout, and the management of front office should make practical efforts such as improving the welfare environment and presenting the future vision of club.
[Purpose] We examined the influence of reactive neuromuscular training (RNT) on golf swing coordination. RNT aims to induce proper coordinative movement by exaggerating the performer’s mistakes. Therefore, we applied RNT using inertia overloading to golfers who have problems with kinematic sequence during a golf swing. [Methods] To examine the effect of 12 weeks of RNT on golf swing coordination, we employed a ball tracking system (launch monitor) and motion analysis system (inertia sensors) were taken on four consecutive periods (pre-test and post-tests 4, 8, and 13 weeks later). Thirty Korean male cadets were divided into three groups based on inertial loading and practiced 7-iron golf swings combined with specific group tasks twice per week. [Results] At pre-test, most participants reached maximal angular velocity near the impact timing (95-100%). However, the deceleration timing of the maximum angular velocity of the proximal segments gradually moved toward mid-downswing as the training sessions proceeded, with the RNT group ultimately outperforming the two control groups. Additionally, the RNT group showed a significantly higher maximum angular velocity in the thorax and wrist. [Conclusion] Our results suggest that RNT can be sufficient to elicit and effective whole-body coordination pattern. Considerable follow-up research is needed on the use of RNT for various sports tasks and the effects of expertise on RNT results.
[Purpose] The purpose of this study was to identify research trend regarding pro-sports and visualize keyword network by using semantic network analysis. [Methods] After searching researches about pro-sports from 1994 to 2016, total 686 researches selected. In this process, inappropriate researches were excluded by 2 researchers’ consensus. [Results] First, the distribution of the number of researches were arranged on pro-baseball, pro-football, pro-basketball, and pro-volleyball in that order. Second, fan, team, and athletes were main research subject. Third, quantitative researches were dramatically more than qualitative researches and mixed method researches. Forth, the proportion of co-working have increased with the course of time. Fifth, the number of keyword which are appeared in researches has increased with the course of time, it dramatically was increased at 2010. [Conclusion] Through these results, researches regarding pro-sports have been broaden with the course of time and interdisciplinary convergence researches with adjacent fields were performed. However, some keyboards were repeated and academic interest about rare keywords was decreased with the course of time. Therefore, scholars in sports field need to have a inquiring stance about novel variables and phenomenons
