• Title/Summary/Keyword: GYMNASTICS

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Relationship among Matured Aging Attitude, Depression, and Successful Aging of Elderly Participating in Dance-Oriented Physical Activity: Focused on Line Dance and Rhythmic Gymnastics (댄스중심의 신체활동에 참여하는 노인들의 성숙한 노화태도와 우울 및 성공적 노화의 관계: 라인댄스와 리듬체조 참여자를 중심으로)

  • Shin, Seak-Hwan
    • Journal of Digital Convergence
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    • v.18 no.10
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    • pp.469-477
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    • 2020
  • This study was conducted with 202 elderly people aged 65 years or older (40.6% male and 59.4% female) participating in physical activities centered on line dance and rhythmic gymnastics. To achieve the main objectives of the study, a questionnaire for mature aging attitude, depression and successful aging was used. The results are as follows. First, matured aging attitude influenced negatively on depression. Second, matured aging attitude influenced positively on successful aging. Third, depression influenced negatively on successful aging. Based on the above results, it is necessary to encourage the elderly to participate in physical activities to achieve successful aging through active interventions against depression.

The Effect of Stress on Sports Injuries in Rhythmic Gymnastics Athletes (리듬체조 선수들의 스트레스가 스포츠 손상에 미치는 영향)

  • Kim, Chanwoo;Park, Kijun
    • Journal of The Korean Society of Integrative Medicine
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    • v.8 no.2
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    • pp.159-168
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    • 2020
  • Purpose : This study was conducted to investigate the effects of stress on sports injuries that occur to the university rhythmic gymnasts in Korea. Methods : All general characteristics of rhythmic gymnasts were analyzed as descriptive statistics and, the incidence of sports injuries was analyzed. To examine the differences in the incidence of sports injuries between the group with upper-level and lower-level stress scores, the independent sample t-test was carried out. For the correlation between number of sports injuries and stress scores, Pearson correlation coefficient was used. All statistical analyses were carried out using the SPSS version 24.0 with the level of significance set to α=.05. Results : The mean stress score of university rhythmic gymnasts was 3.68±1.31. The incidence of sports injuries was 57 cases in total, and per student, 2.28±0.61 cases occurred on average. The incidence of sports injuries differed significantly between the group with upper-level and lower-level stress scores. In addition, significant differences were found in the analysis of the correlation between number of sports injuries and stress scores, with regard to the psychological and emotional stress and the social stress against overall variables. Conclusion : The incidence of sports injuries was higher for the gymnasts with higher stress scores. In addition, correlation were found in the analysis of the between number of sports injuries and stress scores, emotional and psychological stress and the social stress.

Kinematic Comparisons of the Tsukahara Vault between a Top-level Athlete and Sublevel Collegiate Athletes

  • Park, Cheol-Hee;Kim, Young-Kwan;Back, Chang-Yei
    • Korean Journal of Applied Biomechanics
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    • v.26 no.1
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    • pp.71-82
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    • 2016
  • Objective: The purpose of this study was to investigate kinematic comparisons of Tsukahara vault in gymnastics between a top-level athlete and sublevel collegiate athletes in order to obtain information on key biomechanical points for successful Tsukahara vaults. Methods: An Olympic gold medalist (height, 160 cm; weight, 52 kg; age, 25 years) and five sublevel collegiate gymnasts (height, $168.2{\pm}3.4cm$; weight, $59.6{\pm}3.1kg$; age, $23.2{\pm}1.6years$) participated in this study. They repeatedly performed Tsukahara vaults including one somersault. Fourteen motion-capturing cameras were used to collect the trajectories of 26 body markers during Tsukahara vaults. Event time, displacement and velocity of the center of mass, joint angles, the distance between the two hands on the horse, and averaged horizontal and vertical impact forces were calculated and compared. Results: The top-level athlete showed a larger range of motion (ROM) of the hip and knee joints compared to sublevel collegiate athletes during board contact. During horse contact, the top-level athlete had a narrow distance between the two hands with extended elbows and shoulders in order to produce a strong blocking force from the horse with a shorter contact time. At the moment of horse take-off, reactive hip extension of the top-level athlete enhanced propulsive take-off velocity and hip posture during post-flight phase. Conclusion: Even though a high velocity of the center of mass is important, the posture and interactive action during horse contact is crucial to post-flight performance and the advanced performance of Tsukahara vaults.

The Evaluation of the Swing and Aerial Motion of Kovacs on Horizontal Bar (국내 철봉 선수들의 Kovacs의 흔들기 및 체공 동작에 대한 평가)

  • Lim, Kyu-Chan
    • Korean Journal of Applied Biomechanics
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    • v.30 no.4
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    • pp.293-299
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    • 2020
  • Objective: The aim of this study was to investigate the swing and aerial motion of Kovacs, and evaluate the skill level of Kovacs by Korean adult players on horizontal bar. Method: The subjects for this study were 6 male top athletes participated in the 46th National Gymnastics against Cities and Provinces. After the motions of Kovacs were filmed by digital highspeed camcorder setting in 90 frames/s, kinematical data were calculated through DLT method. The variables were computed in the lapse time, the joint angle, the position·velocity of body COG, the inferred tension force of bar, and body COG path were simulated according to skill level of Kovacs. Results: Firstly, it was revealed that the lapse time was 1.19±0.03 s in the swing phase, and 0.83±0.03 s in the aerial phase. Secondly, it was revealed that the shoulder·hip joint motions of S1 and S2 were better than the other subjects in the swing phase, and the knee joint motions of S1 and S2 were better than the other subjects in the aerial phase. Thirdly, it was revealed that the horizontal·vertical velocity of body COG were -1.40±0.03 m/s, 3.80±0.07 m/s respectively, and the vertical positions of S1 and S2 were higher a little than the other subjects. Lastly, the skill level of Kovacs of this subjects was evaluated into 3 steps; excellent, advanced, normal. They need to train the swing motion including a giant circle, and body motions in the air. Conclusion: It would be suggested that Korean domestic players should improve to increase the vertical velocity at release instant and train to control the limbs elaborately in the air.

Analysis of Kinematic Factors between Success and Failure of Free Aerial Cartwheel on the Balance Beam (평균대 한발 몸 펴 옆 공중돌기의 성패에 따른 운동학적 요인 분석)

  • Jung, Choong Min;Park, Sang-Kyoon
    • Korean Journal of Applied Biomechanics
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    • v.32 no.1
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    • pp.24-30
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    • 2022
  • Objective: The purpose of this study was to determine the factors of successful and unsuccessful movements through the analysis of kinematics and muscle activity of the Free Aerial Cartwheel on the balance beam. Method: Subjects (Age: 22.8 ± 2.4 yrs., Height: 158.7 ± 5.0 cm, Body mass: 54.1 ± 6.4 kg, Career: 13 ± 2.4 yrs.) who were currently active as female gymnasts participated in the study. They had no history of surgical treatment within 3 months. Subject criteria included more than 10 years of professional experience in college and professional level of gymnastics and the ability to conduct the Free Aerial Cartwheel on the Balance Beam. Each subject performed 10 times of Free Aerial Cartwheel on the balance beam. One successful trial and one unsuccessful trial (failure) among 10 trials were selected for the comparison. Results: It was found that longer time required in case of unsuccessful trial when performing the Free Aerial Cartwheel on the balance beam compared with successful trial. It is expected to be the result of movement in the last landing section (i.e. phase 5). In addition, it was found that the center of gravity of the body descends at a high speed to perform the jump (i.e. phase 2) in order to obtain a sufficient jumping height when the movement is successful while the knee joint is rapidly extended to perform a jump when movement fails. In the single landing section after the jump (i.e. phase 4), if the ankle joint rapidly dorsiflexed after take-off and the hip joint rapidly flexed, so landing was not successful. Conversely, in a successful landing movement, muscle activity of the biceps femoris was greatly activated resulting no shaking in the last landing section (i.e. phase 5). Conclusion: In order to succeed in this movement, it is necessary to perform a strong jump after rapidly descending the center of gravity of the body using the force of the biceps femoris muscle. Further improvement of the skills on the balance beam requires the analysis of the game-like situation with continuous research on kinematic and kinematic analysis of various techniques, jumps, turns, etc.

Analysis of Dance Education Content in Elementary School Physical Education Textbooks (초등학교 체육교과서 무용교육 내용 분석)

  • Bae, Myeong-Hun
    • Journal of the Korean Applied Science and Technology
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    • v.39 no.2
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    • pp.261-270
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    • 2022
  • This study was to analyze the related contents by securing 32 volumes of 8 types of physical education textbooks for grades 3, 4, 5, 6 that are being used in the school field for the revitalization of dance education. As a result, the 3rd grade expression area organized textbooks focusing on movement language and expression elements. For the 4th grade, most textbooks suggested gymnastics using balls, hoops, and ribbons. In the 5th grade, Ganggangsullae and Mask dance were suggested in relation to Korean folk dances, and Tinikling and Gustaf's skoal suggested in relation to foreign folk dances. had been In the case of 6th graders, the exploration of expression elements and the expression process were presented in relation to thematic expression, and the subject expression was made possible with a focus on creative gymnastics. Also, line dance among practical dances was presented in most textbooks. Despite the importance of the expression domain, field teachers at school are complaining of difficulties in teaching and learning due to various internal and external problems. The need for activation is raised in that the expression domain can exert effects in all cognitive, mental, and affective domains.

A Study on Nutrient Intakes, Body Composition and Physical Fitness in Gifted Athletic Boys -Focused on Gifted Athletic Boys in Busan, Ulsan and Gyeongsangnam-do- (남자체육영재 선발자의 영양섭취, 신체조성 및 체력에 관한 연구 -부산, 울산, 경남지역 체육영재 선발자를 중심으로-)

  • Seo, Dae-Yun;Shin, Sang-Keun;Baek, Yeong-Ho
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.39 no.7
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    • pp.966-974
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    • 2010
  • The aim of this study was to examine characteristics between nutrient intakes, body composition and physical fitness in gifted athletic boys. The subjects were conducted in 50 boys aged 9~12 years living in Busan, Ulsan and Gyeongsangnam-do, Korea. Dietary intake information was collected from participants using 3-day food recorded and body composition was measured by bioelectrical impedance analysis, and their anthropometric parameters were measured. Swimming group's daily energy intakes were significantly higher compared to those of other groups. Athletics and swimming groups were significantly taller than gymnastics. Swimming group was significantly higher than gymnastics group in weight, fat mass, body fat percent and lean body mass. Athletics and swimming groups were significantly longer than gymnastics group in sit and ball throwing. Swimming group was significantly better than other groups in sit up, and athletics group was significantly faster than gymnastics group in 50 m run. In correlation result for nutrient intake and body composition: 1) Body weight shows positive correlation with protein, phosphorus, sodium, vitamin $B_1$, C and niacin. BMI shows positive correlation with sodium and niacin. Fat mass shows positive correlation with niacin and folate. Body fat% shows positive correlation with vitamin C, E, niacin and folate. LBM shows positive correlation with all elements except lipid, calcium, vitamin A, C, E and folate. In correlation result for nutrient intake and physical fitness: 2) Push up shows positive correlation with iron and vitamin C. Sit and throw ball shows positive correlation with the events except lipid, fiber, vitamin A, E and folate. Sit up shows positive correlation with vitamin $B_1$. Half squat shows positive correlation with iron. Standing long jump shows positive correlation with total energy, lipid, and vitamin A, B and $B_2$. Long run shows negative correlation with protein, carbohydrate, fiber, phosphorus, iron, sodium and zinc. Side step shows positive correlation with niacin. Sit and reach shows negative correlation with total energy, carbohydrate, phosphorus, sodium, zinc and vitamin $B_2$. In correlation result for body composition and physical fitness: 3) Sit and throw ball shows positive correlation with body weight, BMI, fat mass, body fat% and LBM. Standing long jump shows positive correlation with LBM. But long run and 50 m run shows negative correlation with body weight and LBM.

Design and Implementation of Salivary Electrical Stimulator for xerostomia

  • Lee, Jihyeon;Yeom, Hojun
    • International journal of advanced smart convergence
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    • v.6 no.4
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    • pp.19-25
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    • 2017
  • After 40 years of age, the saliva glands are aged and the saliva is not made enough to cause xerostomia symptoms. Side effects such as hypertension medication or diuretics that the elderly take mainly can cause xerostomia syndrome. In addition, autoimmune diseases, diabetes, anemia, depression and other common diseases that cause xerostomia symptoms. If the saliva secretion is insufficient, tooth decay and gum disease are likely to occur, and the digestive ability of the saliva is also reduced due to the lack of amylase, which is a digestive element. Once the degenerated salivary gland is restored to its normal state, it is difficult to recover. In this paper, we give electrical stimulation to the masseter which is in contact with the large pituitary gland, and stimulate the salivary gland to the utmost by using speech recognition using words corresponding to oral gymnastics. Use the STM32F407VG to implement a system to relieve xerostomia.

Simple gymnastics game using built-in television camera (카메라 내장형 텔레비전을 이용한 간단한 체조 게임)

  • Kim, Yong Min;Park, Chan Woo;Moon, Young Shik
    • Proceedings of the Korean Society of Broadcast Engineers Conference
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    • 2011.07a
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    • pp.430-431
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    • 2011
  • 본 논문에서는 카메라 내장형 텔레비전을 통해 획득한 영상을 이용한 간단한 체조 게임을 제안한다. 팔을 수평 방향으로 벌리는 과정을 간단한 체조 게임이라고 정의한다. 이를 위해 첫 번째 단계로 연속적으로 입력되는 영상의 평균 영상을 통하여 배경 영상으로 정의한다. 두 번째 단계로 배경 영상과의 차이를 이용한 사람 영역을 검출한다. 세 번째 단계로 검출된 사람 영역에 대해 세로 방향 축의 사영을 통해 특징 벡터를 구한다. 마지막 단계로 특징 벡터를 SVM(Support Vector Machine)을 이용해 학습 및 분류를 수행하여 간단한 체조 게임 인식을 위한 사람의 움직임을 구분하는 방법을 제안한다.

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Retrospect on Preventive Medicine Research and its Future (양생의학 연구의 회고와 전망)

  • Kim, Namil
    • The Journal of Korean Medical History
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    • v.29 no.2
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    • pp.71-81
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    • 2016
  • This paper discusses the research of preventive medicine in terms of philosophy and history, publication and people, branch research, applied research, Gi-gong, conduction exercise and so on. Currently, fields of philosophy, history, physical education and Korean Medicine are actively participating in the research on preventive medicine. From the philosophical view, theoretical aspects of preventive medicine are closely examined. From the historical view, the historical context is of focus. From the physical education viewpoint, Gi-gong, gymnastics and physical education philosophy are studied. In the field of Korean medicine where practicality is most important, plans to apply preventive medicine to life are creating new possibilities for research on preventive medicine. In this time where social interest on health is at peak, combined research of basic theory and application will have positive effects on the development of preventive medicine.