• 한국운동역학회지
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• 제13권1호
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• pp.1-12
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• 2003

The purpose of this study was to design the method of 3D space calibration to reduce RMSE by statistical analysis when using the DLT algorithm and control frame. Control frame for 3D space calibration was consist of $1{\times}3{\times}2m$ and 162 contort points adhere to it. For calculate of 3D coordination used two methods about 2D coordination on image frame, 2D coordinate on each image frame and mean coordination. The methods of statistical analysis used one-way ANOVA and T-test. Significant level was ${\alpha}=.05$. The compose of methods for reduce RMSE were as follow. 1. Use the control frame composed of 24-44 control points arranged equally. 2. When photographing, locate control frame to center of image plane(image frame) o. use the lens of a few distortion. 3. When calculate of 3D coordination, use mean of 2D coordinate obtainable from all image frames.

• 한국엔터테인먼트산업학회논문지
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• 제15권5호
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• pp.189-204
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• 2021

본 연구의 목적은 스포츠복지 향상을 위한 차원에서 장애인체육의 미래 방향을 모색하기 위해 장애인체육의 생활체육 완전 실행자 현황, 법적, 조직적, 정책적 현주소의 분석을 문헌연구방법을 통해 얻은 장애인체육 활성화방안의 결과는 다음과 같다. 첫째, 장애인 생활체육 완전 실행자의 확대를 위해서는 정부 및 민간조직의 연계를 통한 대단위의 체계적인 홍보의 확대가 필요하다. 둘째, 국민체육진흥법의 전면 개정 및 장애인체육진흥법의 제정을 적극적으로 추진한다. 이는 현실에 부합하고 시대변화에 대응하기 위한 가장 먼저 철저하게 준비해야하는 법률 제정이 필요한 것이다. 셋째, 장애인체육 및 관련 정부부처의 융합적인 협치를 통한 효과적인 시스템을 구축한다. 이는 이원화된 '신체활동'과 '생활체육'의 개념을 명확히 하고 그에 따른 정책방향성을 제시하여 효율적인 정책 및 사업 등을 추진이 필요하다. 넷째, 장애인체육 정책개발에 대한 다양한 전문가 집단의 참여를 강화한다. 이는 체육적인 요소뿐만 아니라 철학, 재활, 교육, 마케팅, 법 등 요소가 융합되어 이루어지는 것이 필요하다.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2016년도 추계학술대회
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• pp.302-304
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• 2016

본 논문에서는 생활 스포츠 콘텐츠 기반의 프로파일 처리 알고리즘에 대하여 제안한다. 제안한 알고리즘은 맞춤형 생활 스포츠 콘텐츠를 추천을 위해 필요한 연구이며, 추천의 신뢰성을 높이기 위해 선행되어야 할 연구이다. 그래서 제안한 알고리즘은 추천 시 고려되는 동적 정보를 포함하는 동적 프로파일을 처리하고, 추천 분류에 따라 변화되는 가중치 값을 처리할 수 있는 동적 프로파일 알고리즘을 제안하였다. 제안한 프로파일 처리 알고리즘은 콘텐츠 추천의 만족도 향상을 기대한다.

• Journal of Nutrition and Health
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• 제39권4호
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• pp.323-330
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• 2006

Peripheral insulin resistance in obese/type II diabetes animals results from an impairment of insulin-stimulated glucose uptake into skeletal muscle. Insulin stimulate the translocation of GLUT4 from intracellular location to the plasma membrane. Soluble N-ethylmaleimide-sensitive factor attachment protein receptors (SNAREs) is implicated in mediation of fusion of GLUT4-containing vesicle with the plasma membrane. Present study investigated regulatory effects of Rhodiola sachalinensis administration and exercise training on the expression of GLUT4 protein and SNAREs protein in skeletal muscles of obese Zucker rats. Experimental animals were randomly assigned into one of five groups ; lean control(LN), obese control(OB), exercise-treated(EXE), Rhodiola sachalinensis-treated(Rho), combine of Rho & EXE (Rho-EXE). All animals of exercise training (EXE, Rho-EXE) performed treadmill running for 8 weeks, and animals of Rho groups (Rho, Rho-EXE) were dosed daily by gastric gavage during the same period. After experiment, blood were taken for analyses of glucose, insulin, and lipids levels. Mitochondrial oxidative enzyme (citrate synthase, CS ; $\beta$-hydroxyacyl-CoA dehydrogenase, $\beta$-HAD) activity were analysed. Skeletal muscles were dissected out for analyses of proteins (GLUT4, VAMP2, syntaxin4, SNAP23). Results are as follows. Exercise and/or Rhodiola sachalinensis administration significantly reduced body weight and improved blood lipids (TG, FFA), and increased insulin sensitivity. Endurance exercise significantly increased the activity of mitochondrial enzymes and the expression of GLUT4 protein, however, administration of Rhodiola sachalinensis did not affect them. The effect of exercise and/or Rhodiola sachalinensis administration on the expression of SNARE proteins was unclear. Our study suggested that improvement insulin sensitivity by exercise and/or Rhodiola sachalinensis administration in obese Zucker rats is independent of expression of SNARE proteins.

• 한국운동역학회지
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• 제16권2호
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• pp.55-63
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• 2006

The purpose of this study was to investigate the effects of vibration exercise using surface electromyography. Seven male collegiate wrestlers were participated in this study. Each subject stood on the platform and the vibration was induced for 1min. WEMG8 EMG system was used to record muscle activity from Vastus lateralis, Biceps Femoris, Tibialis Anterior, and Gastrocnemius. The EMG data were sampled for 30 sec. during non-vibration and vibration half squat position, respectively. The raw data were band pass filtered to remove noise and full wave rectified Paired sample t-test were performed to see the differences of maximum and average EMG between non-vibration and vibration trials. The results indicated that vibration produced much more muscle contraction than that of non-vibration trial for all selected muscles even though the significant difference was found only from Biceps Femoris. This phenomenon was due to the individual differences so care must be taken to evaluate vibration intensity and position before personal training.

• 대한의생명과학회지
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• 제17권4호
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• pp.321-328
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• 2011

This study divided a group of healthy adults aged 20 or older who had a health examination at J General Hospital in Gyeonggi Province into three groups according to the degrees of metabolic syndrome risk factors. They include the normal group (n=58), the pre-metabolic syndrome group (n=112) and the metabolic syndrome group (n=32). They were compared in exercise capacity and cardiac structure and function and impacts of exercise capacity on the cardiac diastolic function. All the groups took echocardiography to have their cardiac structures and functions examined and an exercise stress test to have their exercise capacity measured. The research findings were as follows: There were differences in exercise capacity, cardiac structure, and diastolic heart function among three groups. Between exercise capacity and diastolic heart function was found to be related. It turned out exercise capacity affected the cardiac diastolic functions. In conclusion, there were significant differences in exercise capacity between the normal group and the metabolic syndrome group and in the cardiac structure and function among the normal, metabolic syndrome, and pre-metabolic syndrome group. In addition, METs (metabolic equivalents) and heart rate recovery of exercise capacity turned out to affect cardiac diastolic functions.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제8권6호
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• pp.2197-2211
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• 2014

The purpose of this study was to investigate the effects of online ballet community-based teacher-parent computer-mediated communication (CMC) on four achievement goals of ballet students. We used a randomized post-test only control group design. In order to test whether teacher-parent CMC has a positive impact on the improvement of achievement goals, multivariate analysis of covariance were performed with the ages of ballet students as the covariates. Teacher-parent CMC had significant effects on achievement goals. The mastery-approach goals of the experimental group were significantly higher than of the control group. In contrast, the performance-avoidance goals of the experimental group were significantly lower than those of the control group. There were no differences between the two groups in mastery-avoidance and performance-approach goals. Above all, this study is significant because the focus was placed on the inter-relationship between the two settings of school and family in regard to ballet student improvement, rather than on one setting only.

• 한국운동역학회지
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• 제17권3호
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• pp.209-215
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• 2007

The purpose of this study was to investigate gait factor and muscle activity depending on hiking poles-using. Eight healthy men volunteered for this experiment. Each of them performed down-hill walking with hiking poles-using and without poles at speed of 3.5km/h for 45 minutes on a treadmill. The treadmill was set 25% down-hill inclination. Kinematic data collected in 60Hz were recorded and analyzed by using 2D motion capture system to measure step time and step length so on. And the lower extremity muscle activities were simultaneously recorded in 1500Hz and assessed by using EMG. The statistical analysis was the paired t-test with repeated measures to compare between hiking poles-using and without poles. The level of statistical significance for all tests was .05. The results of this study were following : Step time was showed statistically different according to pole conditions. That is, the case of poles-using was longer than without poles in step time. Also, step length was showed statistically different between two conditions. Step length about trials with poles was longer than trials without poles. In the muscle activity, the case of all muscles was not showed statistical significance about pole conditions. However, in most muscles IEMG, there were some decreasing-trend relatively when hiking polesusing.

• 한국운동역학회지
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• 제26권4호
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• pp.353-360
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• 2016

Objective: The aim of this study was to investigate the relationship between aiming patterns and scores in archery shooting. Method: Four (N = 4) elementary-level archers from middle school participated in this study. Aiming pattern was defined by averaged acceleration data measured from accelerometers attached on the body during the aiming phase in archery shooting. Stepwise multiple regression analysis was used to test whether a model incorporating aiming patterns from all nine accelerometers could predict the scores. In order to extract period of interest (POI) data from raw data, a Dynamic Time Warping (DTW)-based extraction method was presented. Results: Regression models for all four subjects are conducted with different significance levels and variables. The significance levels of the regression models are 0.12%, 1.61%, 0.55%, and 0.4% respectively; the $R^2$ of the regression models is 64.04%, 27.93%, 72.02%, and 45.62% respectively; and the maximum significance levels of parameters in the regression models are 1.26%, 4.58%, 5.1%, and 4.98% respectively. Conclusion: Our results indicated that the relationship between aiming patterns and scores was described by a regression model. Analysis of the significance levels, variables, and parameters of the regression model showed that our approach - regression analysis with DTW - is an effective way to raise scores in archery shooting.

• 한국콘텐츠학회논문지
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• 제9권8호
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• pp.392-400
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• 2009

본 연구는 고등학교 남학생들의 스포츠 참가와 스포츠 유능감, 그리고 정신건강이 학년에 따라 차이가 있는지, 그리고 스포츠 참가와 스포츠 유능감이 정신건강에 영향을 미치는지 살펴보고자 하였다. 이를 위해 서울소재 고등학교 남학생들을 모집단으로 하여 448명 을 표집하였다. 가설 검증은 일원 변량분석과 다중회귀분석 등의 통계분석을 통해 이루어졌다. 연구결과 첫째, 학년에 따른 스포츠 참가, 스포츠 유능감, 그리고 정신건강의 차이에 있어서는 1학년과 2학년이 3학년에 비해 참가 강도가 높은 것으로 나타났으며, 정신건강의 하위 척도인 우울에 있어서 2학년이 가장 높게 나타났다. 둘째, 스포츠 참가 정도는 정신건강에 영향을 미치지 않은 반면, 스포츠 유능감은 정신건강 하위 척도인 불안, 우울, 적대감 모두에 긍정적으로 영향을 미치는 것으로 나타났다. 따라서 고등학교 남학생들의 정신건강을 위해서는 단순히 스포츠 활동 참가를 증가시키기보다는 스포츠 유능감을 높이기 위한 노력을 기울이는 것이 바람직하다.