에어로빅 댄스시 부하에 영향을 미치는 내외적인 변인에 관한 연구

The Purpose of this study is to identify the causes of injury in aerobic dancing and to provide for the preventive measures against the injury. The study consists of three parts: survey of aerobic dance, Video analyses of aerobic dance movement, and body impacts analyses via force plate form. The survey focuses on five factors of injuries that, are commonly related to body load. Those are intrinsic factor, extrinsic factor, injury factor, exercise experience facror, and exercise factor. First, the intrinsic factor s composed of anthropometric variables such as height, weight, body mass index, sex, and age. Second, the extrinsic factor includes usage of protective gears, shoe quality, shoe sole thickness, and floor type. Third, the injury factor consists of the injury experience, injured part of human body, medical treatment of the injured, and history of disease. Fourth, the exercise experience factor includes frequence of exercise, exercise time length. Fifth, the exercise factor includes landing motion, exercise pace, and reaction force. The sample of survey is confined to the adult persons residing in Seoul. The places where the survey form was distributed include local community sports center, private commercial fitness facilities, and private noncommercial fitness facilities. The aerobic classes in these facilities were shot with video cameras and using the film. We analyzed a few important body movements such as landing style, movement type, movement speed, and movement frequency. The film was also used to test the reaction force of various exercise movements. The dependent variable of the test are (I)the vertical reaction force in landing, (2)the number of peaks, and (3) the rate of loading. on the other hand, the independent variables are (1)shoe type, (2)floor type, (3)feet position in landing, and (4)motion speed. In conclusion and suggestions, many people continuously practise aerobic exercise over a long period. To make it desirable as a life-time sports, we need to minimize the physical impacts that aerobic movement exerts on our body. It implies that we would be safer by wearing protective gears and by keeping our bodies warm. In order to prevent injuries, leaders should not compel an intense exercise and also ought to recommend a rest to individuals who show signs of discomfort during exercise. Most of private commercial fitmess facilities do not consider that different age groups need distinct aerobic programs. A uniformly imposed program is most likely to overwork our bodies. Therefore, aerobic classes need to be divided according to both age and the degree of physical fitness of students. To minimize the injuries due to the lack of body flexibility, it is recommended that students carry out some stretching exercise befor and after the main exercise. It was a surprising finding that not only the lower limb but also the upper limb like. arms and shoulders is subject to exercise injuries. Now that this study has focused on the lower limb injuries, further studies on the upper limb would be quite useful. The shock of aerobic movement on human body largely depends on the frequency and magnitude of within-50ms passive impact. Therefor, in conducting high impact movement, we need to minimize this type of passive impact. On the other hand, low impact movement may also cause a injury if it is continued over a long time length.In this regard, we may test the impact of extrinsic. factor(e.g., floor quality, shoes type)on human body engaged in low impact movement like walking by extending the exercise time length until the walker gets fatigued. When performing running, jumping, and fast walking, we need to wear jogging shoes or aerobic shoes that are effective in shock-absorbing.In additin, wooden floor appears to be the most desirable fo those exercise. Dancing shoes or indoor shoes that are used by 27.2%of the surveyed is of the least shock-absorbing quality. Therefore, an injury-preventive education seemsto b