• Korean Journal of Applied Biomechanics
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• v.24 no.2
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• pp.173-180
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• 2014

The purpose of this study was to investigate the effect of combined exercise on injury risk factors of lower extremity during landing. Ten sports talented athletes participated in this study. Sports talented athletes participated in a combined exercise (sports talented exercise, coordination) for 16 weeks. A three-dimensional motion analysis was performed using eight infrared cameras (sampling rate of 100 Hz), one force plate, and electromyography system (sampling rate of 1000 Hz) during landing. Kinetic, and kinematics analysis including average impulsive force, angle of lower extremity, vertical stiffness, onset of muscle activation were calculated by Matlab2009a software. Paired t-test was performed at alpha=.05. The average impulsive force in landing phase was not statistically significant (t=-.748, p=.474). The hip joint angle was more decreased in post test compared to pre test (E1: t=2.682, p=.025, E2: t=5.609, p=.000, E3: t=2.538, p=.032). The knee joint (E1: t=-.343, p=.739, E2: t=1.319, p=.220, E3: t=.589, p=.570) and ankle joint (E1: t=.081, p=.937, E2: t=.784, p=.453, E3: t=.392, p=.704) angle were tended to decrease after combined exercise. The vertical stiffness was tended to decrease after combined exercise (t=1.972, p=.080). Onset of quadriceps femoris (t=.698, p=.503) and medial gastocnemius (t=1.858, p=.096) were tended to be faster than biceps femoris (t=-.333, p=.747) after combined exercise. Although thses findings were not statistically significant except on a hip joint angle, risk factors of lower extremity such as joint angle, vertical stiffness and onset of quadriceps femoris, medial gastrocnemius were positively changed after the combined exercise but an additional training for improved onset of biceps femoris would be required in the future.

• 한국체육학회지인문사회과학편
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• v.54 no.5
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• pp.581-592
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• 2015

This research was fairness in sport and power is how they form and change through historical discussion on the sport's doping and ran afoul of fairness Explored in match-fixing in relationship with power, the product of the problems of human desires. First, doping and exploration of power. The history of doping in sports, history as long as it existed before. Medication is ruler of the players can't or don't conform with authority between the pair formed a relationship, where, in accordance with the victory of a temptation for wealth and fame and vested interests and desire, is personal, Society and country ranging and widely is committed. In particular, power of expression is reflected well reflected in the sport in the Cold War era and, in those days was wrong thinking and practices are still truly understands the connection between doping and anti-doping. Second, match-fixing and exploration of power. Also in the history of sport as doping, match-fixing, always existed. Sport and fairness of match-fixing in relation to artificial sources, and well decide the outcome of which ended with sport, not an issue connected to gambling and other crimes, And that's another sport and bring about a vicious circle of even turn into a row. The reason for this match fixing in power part of the formation of capital and profits for the exact cause has developed that further threatens the fair sport. Thus, in fairness, and relations of power in sport doping and match-fixing is historically very meaningful and, further research and discussion is needed. Buried the materialistic values of sport doping and match-fixing, nothing is being tolerated and other researchers' power as the elements of the pie grow only by sport only No one can guarantee that only satisfied if we hold a bright future of sport.

• Journal of Korean Physical Therapy Science
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• v.3 no.4
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• pp.189-196
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• 1996

The purpose of this review are that what is the concept of sport P. N. F and to give the information about proprioceptive neuromuscular facilitation technique when the sport physical therapy will be needed in field. Technique of proprioceptive neuromuscular facilitation are methods of placing specific demands in order to secure a desired response. Greatest emphasis was placed on the application of optimal resistance throughout the range of motion, using many combinations of motions which were related to primitive patterns and employment of postural and righting reflexes. The treatment after sport injury patient is required that two component actions of muscles as well as permitting action to occur at two or more joint. The effect of P. N. F and of sprot P. N. F are reviewed. Implications for treatment of sport disability are suggested.

• Transactions of the Korean Society of Mechanical Engineers A
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• v.28 no.12
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• pp.1974-1981
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• 2004

This paper is concerned with the numerical investigation of the transfer characteristics of the landing impact force exerted on court sport shoes to the sport surface condition. The reaction force occurred by the impact between court sport shoes and sport surface is absorbed by shoes to some extent, but the remaining impact force is to transfer the human body from the sole of a foot. We consider four surface conditions, asphalt, urethane, clay and wood court surfaces. For the dynamic response analysis, we construct a coupled leg-shoes FEM model and create the multi-layered composite surface model. The numerical simulations are performed by an explicit nonlinear finite element method. Through the numerical experiments, we examine the transfer characteristics of the landing impact force to the surface condition.

• Journal of Fisheries and Marine Sciences Education
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• v.28 no.5
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• pp.1459-1469
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• 2016

The purpose of this study was to analyze the relationships among sport enjoyment, participation satisfaction, and participation adherence intention of water leisure sports participants in Busan. The study conducted a research survey through purposive sampling method after selecting 3 water leisure sports center in Busan. 360 questionnaires distributed and 352 were selected as final valid sample by removing 8 questionnaires that have insufficient answers. Hypothesis test on collected data was conducted by using SPSS 20.0 and AMOS 19.0 programs. The results were as followings. First, sport enjoyment had a significant effect on participation satisfaction. Second, sport enjoyment had effect on participation adherence intention. Third, participation satisfaction had effect on participation adherence intention. Fourth, sport enjoyment had directly positive effect on participation adherence intention. In addition, it had effect on participation adherence intention as the partial mediation of the participation satisfaction.

• Journal of Fisheries and Marine Sciences Education
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• v.28 no.2
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• pp.603-610
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• 2016

The purpose of this research is to define the relationship of sport commitment and re-participation intension in marine sports participant. For the purposes of this study, yachting, windsurfing, scuba diving, and mariner sports canoe total of 200 targets the participants involved in the survey. The results of exploratory factor analysis and reliability analysis to analyze the construct validity and internal consistency were found to comply with the standard. Therefore, as a result of the correlation and regression analysis to analyze the relationship between the sport commitment and re-participation intension, the correlation between each variable and showed a positive correlation. Also, cognitive behavioral commitment and engagement of the sport commitment of marine sports enthusiasts was found on both the positive effect on the re-participation intension. As a result, the sport commitment turned out to be an important factor immersed in marine sports participation. In addition, it is believed to be on ways to increase positive emotions in empirical terms.

• Journal of Preventive Medicine and Public Health
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• v.46 no.sup1
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• pp.35-42
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• 2013

A commitment to physical activity is necessary for personal health, and is a primary goal of physical activity practitioners. Effective practitioners rely on theory and research as a guide to best practices. Thus, sound theory, which is both practical and parsimonious, is a key to effective practice. The purpose of this paper is to review the literature in search of such a theory - one that applies to and explains commitment to physical activity in the form of sport and exercise for youths and adults. The Sport Commitment Model has been commonly used to study commitment to sport and has more recently been applied to the exercise context. In this paper, research using the Sport Commitment Model is reviewed relative to its utility in both the sport and exercise contexts. Through this process, the relevance of the Investment Model for study of physical activity commitment emerged, and a more parsimonious framework for studying of commitment to physical activity is suggested. Lastly, links between the models of commitment and individuals' participation motives in physical activity are suggested and practical implications forwarded.

• Journal of Korean Society of Rural Planning
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• v.22 no.1
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• pp.57-67
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• 2016

The purpose of this study was to review of animal-assisted therapy. Method: Animal-assisted therapies (AATs) in domestic and international studies (68 cases) were analyzed by searching databases, KERIS & KISS, and the Pub MED(NCBI). Result: In AATs, a few animals were used for the various disease or disorder. Dog centered therapies were most common.. AATs were used in the various disorder and disease. For the psychological effect, majority of the outcome variables were depression and anxiety. For the physical effect, the most outcome variables were blood pressure, heart rate, and stress hormone. However, These results show that AATs were confined to specific areas such as sensation-centered therapies. Conclusion: AATs had positive effects both in physical and psychological factors even if the study areas have not been applied to the various condition. The further research is needed to identify scientific grounds for the effects of the interventions through various therapies.

• Journal of Digital Convergence
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• v.19 no.6
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• pp.363-372
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• 2021

The Purpose of this study was to analyzed the possibility of sport leaders cooperative model promote life sport through the creation of stable jobs for sports leaders. For the study, a questionnaire in preceding study was revised through the advisory committee and used to survey 20 life sports leaders in D city and 10 operators of sports cooperatives. After analyzing and categorizing of the survey results, the following conclusions were obtained. Sports leaders' cooperatives can be a model for revitalizing life sports, if more than 5 life sports leaders recognize the clear purpose and necessity through education, and operate the cooperative through communications in unity of members. It is thought that this can a new method for the development of the diversity of sports participation and the development of life sports.

• Journal of Digital Convergence
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• v.19 no.7
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• pp.371-377
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• 2021

This study tried to analyze the types of sport emotion by sport game characteristics. For that, 7 soccer games and 6 baseball games of Korean team in 2018 Asian Games were selected, and the articles and their replies about those on social network services were collected as study materials. Python was used for the collecting and expert group meeting was held for the emotion analysis. As the results of the analysis on sport emotion types by win or lose, the level of opponents and the performance of Korean team as game characteristics, the following conclusions were drawn. First, it was hard to say that win or lose and opponent's level make certain sport emotion type. Second, The performance could made contended, enthusiastic and joyful emotions when judged good, but frustrated, angry, humiliated emotions when bad. Third, social·cultural background or certain event of the games also could effect on the sport emotion types. Follow-up studies with the other game characteristics and more game cases were needed to find out more clear causal relationship.