• 한국운동역학회지
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• 제13권2호
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• pp.13-28
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• 2003

The purpose of this study was to analyze the kinematic characteristics of Ice hockey slap shot. The subjects of this study were four professional ice hockey players. The reflective markers were attached on the anatomical boundary line of body and the subjects were asked to perform the shot. Ariel Performance Analysis System was used to capture and digitize the shooting image, the data were analyzed by LabView 6i. The results were as fellows. 1. The period of the back swing phase was $0.542{\pm}0.062sec$, the down swing phase was $0.28{\pm}0.056sec$ and the total swing time was $0.825{\pm}0.017sec$ 2. The maximum linear velocity of the stick blade for x direction was shown after 7% of impact, for y, z direction were shown before 2%, 8% of Impact. 3. The maximum velocity of each segment for the left arm was $2.35{\pm}0.05m/s$ in the upper arm, $3.56{\pm}0.34m/s$ in the forearm, $4.75{\pm}0.67m/s$ in the hand. 4. The maximum velocity of each segment for the right arm was $4.67{\pm}0.43m/s$ in the upper arm, $7.22{\pm}0.69m/s$ in the forearm, $9.42{\pm}0.89m/s$ in the hand. 5. The angle of left elbow was generally flexed from the ready stance to the impact and was $82.26{\pm}3.45^{\circ}$ the moment of Impact. 6. The angle of the left shoulder was increased ut the down swing phase and was $78.74{\pm}4.78^{\circ}$ on the moment of impact. 7. The angle of the right shoulder was decreased in the down swing phase and increased before the impact. and the angle was $51.28{\pm}3.54^{\circ}$ on the moment of impact.

• 문화기술의 융합
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• 제7권1호
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• pp.364-368
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• 2021

본 연구는 대한민국 청소년 배드민턴 국가대표 선수를 대상으로 그들의 경기력과 성취목표성향의 하위 요인인 자아성향과 과제성향에 어떤 관계가 있는지 알아보고자 수행되었다. 이에 배드민턴 청소년 대표 선수들의 경기력 수준에 따라 자아성향과 과제성향은 차이가 없을 것이라는 두 개의 영가설을 설정하고 이를 검증하고자 하였다. 연구대상으로는 2018년도 청소년 배드민턴 국가대표 하계 합숙훈련에 소집된 중,고등학생 92명으로 하였고, 이들의 학교급별 단식 전체리그 결과를 토대로 하여 경기력 상,하 집단으로 구분하여 자아성향과 과제성향의 차이를 각각 알아보았다. 검사도구로는 스포츠 성취목표지향성에 관한 검사지(Task & Ego Orientation in Sport Questionnaire, TEOSQ)를 사용하였다. 자료의 경향을 파악하기 위해서 빈도분석을 실시하였고 검사지의 신뢰도를 알아보기 위해서 신뢰도 분석(Cronbach's α)을 실시하였으며 마지막으로 경기력 집단 간 성취목표성향의 차이를 알아보기 위하여 독립 t검증을 실시하였다. 그 결과, 경기력 상집단과 하집단 간에 자아성향과 과제성향 두 요인 모두 통계적으로 유의한 차이가 나타나지 않았다. 연구결과를 토대로 논의하였다.

• 정보과학회 컴퓨팅의 실제 논문지
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• 제23권1호
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• pp.37-44
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• 2017

AOS(Aeon of Strife)장르의 게임들은 단순히 즐기는 컴퓨터 게임이 아닌 대표적인 e스포츠 종목으로 자리매김하고 있으며 전문성을 필요로 하는 스포츠의 특성상, 게임 플레이 패턴 및 시즌 별 캐릭터 선택 등 게임 운영에 필요한 통계 분석의 중요성이 증가하고 있다. 본 논문에서는 대표적인 AOS 게임 중의 하나인 리그오브레전드의 게임 데이터를 이용해 데이터 마이닝 기법을 이용한 게임의 전략적 분석을 실시한다. 통계적 승률 예측 기법인 로지스틱 회귀분석과 판별 분석 및 인공신경망을 이용하여 게임의 승패 예측 모형을 설계하고 실험한다. 게임 데이터 분석 결과는 확률을 표시한 그래프로 표현되어 게임 플레이를 돕기 위해 개발된 시각적 도구에 이용한다. 승패 예측 모형의 실험 결과, 평균적으로 95%의 높은 분류율을 보이고 시각화 도구를 통해 게임 플레이의 다양한 전략 수립에 이용됨을 보인다.

• 한국실내디자인학회논문집
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• 제25권3호
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• pp.51-59
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• 2016

The technique for Eye-tracking is to trace the movements of pupils so that the eye's exploration response to be digitized. The procedure of Observation Experiment shows a mutual environmental characteristics between men and measuring devices. In order to improve the reliability and to secure the objectivity of the data acquired from eye-tracking, it is very important to analyze the procedures for the experiment to be prepared and the test data to be saved. Based on this viewpoint, the convergent exploration activities at the observation experiment with the objects of sport images were examined to find out what influences the context effect given by experimental environments have on this experiment. In addition, the starting time of attention affecting the reliability of observation data has been estimated. When the observation time is to be subdivided by the unit of second. The attention disperses for the individual characteristics to be appreciated. However, in case of analysis by the overall average, there was the problem that the section of attention dispersed to make it difficult to analyze the subjects' observation features. The study results made it possible to understand the physiological characteristics which were near unconsciousness, when there was an intensive attention for the first 3 seconds and the observation data were shown to be in ordinary range after 4 seconds. The analysis of observation with the focus of the intensive attention enabled the analysis with the first 3 seconds excepted so that it might approach the ordinary range of observation data. The distribution of attention for the first 3 seconds showed the intensive attention, which was on the center. The emergence of intensive attention and the overlapping of the centers can be considered as a context effect due to the correction for the preparing process of experiment. Accordingly, it is thought to be helpful to the security of objectivity and the construction of reliability of eye-tracking data to analyze the observation features shown after the deletion of the data for the first 3 seconds.

• International journal of advanced smart convergence
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• 제11권4호
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• pp.155-162
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• 2022

The purpose of this study is to conduct an empirical study on brand authenticity targeting sportswear brand consumers. Through this, we intend to provide the accumulation and implications of authenticity research. For the research model, first, the authenticity of sportswear brand companies was selected as an independent variable. Brand image and brand attitude were selected as the next parameters. Finally, the dependent variable was the intention to pay the premium. Structural equation model analysis was conducted for the structural relationship between these variables. The subjects of this study are consumers who have purchased sportswear brands within the past year. Convenience sampling was used for the sample survey, and 262 people were finally selected as valid samples. The survey was conducted as a non-face-to-face online survey due to the COVID-19 infection. For data processing, frequency analysis was conducted using SPSS 23 to identify the individual characteristics of the survey subjects. In addition, exploratory factor analysis and reliability analysis were performed to refine the scale of the survey tool. Next, using AMOS 21, confirmatory factor analysis and correlation analysis were conducted to verify the measurement model. In addition, structural equation model analysis was conducted to verify the hypothesis. As a result of the analysis, all six hypotheses selected from the research model were adopted.

• 한국운동역학회지
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• 제21권4호
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• pp.487-494
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• 2011

The purpose of this study was to evaluate the effects of metatarsal pad (MP) compared with barefoot and MP with using different insoles on gait. 15 healthy females who had no history of injury in the lower extremity with an average age of 22.7 year(SD=1.35), height of 160 cm(SD=3.4), weight of 48.8 kg(SD=5.52) and average foot size of 232.5 mm(SD=6.8) participated in this study as the subjects. The subjects walked on a treadmill under four different experimental conditions: 1) walking with barefoot, 2) walking wearing MP 3) walking wearing a soft insole with MP(SIMP), 4) walking wearing a rigid insole with MP(HIMP). During walking, foot pressure data such as force, contacting area, peak pressure, and mean pressure was collected using Pedar-X System(Novel Gmbh, Germany) and EMG activity of lower limb muscles such as tibialis anterior(TA), lateral gastrocnemius(LG), rectus femoris(RF), and musculus biceps femoris(MBF) was gathered using Delsys EMG Work System(Delsys, USA). Collected data was then analyzed using paired t-test in order to investigate the effects of each of experimental conditions. As a result of the analysis, when MP and HIMP were equipped, overall contacting area was increased while the force, peak pressure and the mean pressure were decreased. Especially, when the SIMP was equipped, every data were significantly decreased. In case of EMG, wearing MP, SIMP and HIMP made three muscles(TA, LG, RF)'s activity decrease. A result of the analysis will be able to apply for manufacturing functional shoes, diabetes shoes, senior shoes and lower extremity orthosis. Significance of the study due to a metatarsal pad and the insole is to analyze the changes in muscle strength.

• 한국콘텐츠학회논문지
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• 제9권6호
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• pp.379-389
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• 2009

본 연구는 대구, 경북지역의 실내 수영장에서 수영프로그램에 참여하고 있는 여성을 대상으로 여성의 스포츠여가활동을 통한 신체적 자기효능감이 일반적 자기효능감과 생활만족에 미치는 영향을 분석하고자 수행되었다. 연구결과에 의하면 첫째, 신체적 자기효능감은 모든 일반적 자기효능감 변수에 유의적인 영향을 미치는 것으로 나타났다. 즉 신체적 자기효능감은 자신감, 끈기/노력, 대인관계, 상황극복에 모두 유의적인 영향을 미치는 것으로 볼 수 있다. 둘째, 신체적 자기효능감은 생활만족에 유의적인 영향을 미치는 것으로 나타났다. 셋째, 일반적 자기효능감은 생활만족에 부분적인 영향을 미치는 것으로 나타났으며 자신감, 대인관계 변수는 생활만족에 유의적인 영향을 미치지 않았으며, 상황극복, 끈기/노력 변수는 유의적인 영향을 미치는 것으로 나타났다. 또한 40세 이하의 여성에서만 신체적 자기효능감이 생활만족에 유의적인 영향을 미치는 것으로 나타났으며 일반적 자기효능감 변수 중 40세 이상에서는 끈기/노력, 40세 이하의 여성에서는 상황극복과 끈기/노력 변수가 생활만족에 유의적인 영향을 미치는 것으로 나타났다.

• 융합정보논문지
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• 제11권5호
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• pp.242-250
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• 2021

본 연구는 서울·경기에 위치하고 있는 노인복지관과 노인정에서 자발적으로 참여의사를 밝힌 65세 이상노인 514명을 대상으로 노인의 근력, 인지기능, 일상생활수행능력 및 우울의 통합적 인과관계를 분석하였다. 자료수집은 근력은 상·하지근력, 악력(좌,우), 인지기능은 간이 정신상태검사, 선로잇기검사, 숫자외우기검사, 스트룹검사를 실시하였으며, 일상생활수행능력 및 우울은 설문지를 이용하여 측정하였다. 그 결과 첫째, 노인의 근력과 인지기능, 일상생활수행능력 및 우울간에는 통계적으로 유의한 상관관계가 나타났다. 둘째, 노인의 근력과 인지기능, 일상생활수행능력 및 우울의 통합적 관계성에 대한 분석에 모든 변인 간에 통계적 유의성이 나타났다. 본 연구는 노인의 근력, 인지기능, 일상생활수행능력 및 우울의 관계성을 확인하여 노인의 성공적인 노화와 자립적인 노후생활을 위한 기초자료를 제공할 수 있을 것이다.

• 한국운동역학회지
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• 제17권2호
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• pp.145-156
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• 2007

The purposes of this study were to investigate kinematic parameters of racket head and upper extremities during squash back hand stroke and to provide quantitative data to the players. Five Korean elite male players were used as subjects in this study. To find out the swing motion of the players, the land-markers were attached to the segments of upper limb and 3-D motion analysis was performed. Orientation angles were also computed for angular movement of each segment. The results were as follows. 1) the average time of the back hand swing (downswing + follow-through) was 0.39s (0.24 s + 0.15 s). 2) for each event, the average racket velocity at impact was 11.17m/s and the velocity at the end of swing was 8.03m/s, which was the fastest swing speed after impact. Also, for each phase, 5.10m/s was found in down swing but 7.68m/s was found in follow-through. Racket swing speed was fastest after the impact but the swing speed was reduced in the follow-through phase. 3) in records of average of joints angle, shoulder angle was defined as the relative angle to the body. 1.04rad was found at end of back swing, 1.75rad at impact and it changes to 2.35 rad at the end of swing. Elbow angle was defined as the relative angle of forearm to upper arm. 1.73rad was found at top of backswing, 2.79rad at impact, and the angle was changed to 2.55rad at end of swing. Wrist angle was defined as the relative angle of hand to forearm. 2.48rad was found at top of backswing, 2.86rad at impact, and the angle changes to 1.96rad at end of swing. As a result, if the ball is to fly in the fastest speed, the body has to move in the order of trunk, shoulder, elbow and wrist (from proximal segment to distal segment). Thus, the flexibility of the wrist can be very important factor to increase ball speed as the last action of strong impact. In conclusion, the movement in order of the shoulder, elbow and the wrist decided the racket head speed and the standard deviations were increased as the motion was transferred from proximal to the distal segment due to the personal difference of swing arc. In particular, the use of wrist (snap) may change the output dramatically. Therefore, it was concluded that the flexible wrist movement in squash was very important factor to determine the direction and spin of the ball.

• 한국엔터테인먼트산업학회논문지
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• 제14권8호
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• pp.427-436
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• 2020

이 연구는 대학운동부를 대상으로 인권감수성 수준을 알아보고 변인 간 인권감수성의 차이를 비교·분석하는 데 목적이 있다. 이러한 연구의 목적을 달성하기 위해 한국대학스포츠협의회에 등록된 대학을 중심으로 10개 대학교의 운동선수 188명을 유층집락무선표집으로 설문조사하였다. 수집된 자료는 IBM SPSS 24.0 프로그램을 사용하여 빈도분석을 실시하였고, 신뢰도를 구하기 위하여 cronbach's α를 산출하였다. 대학운동부의 다양한 특성에 따라 인권감수성 수준의 차이를 검증하기 위해서 기술통계분석, one-way ANOVA, 사후검증 방법으로 Scheffe를 사용하였으며, 다음과 같은 결론을 도출하였다. 첫째, 에피소드 중 대학운동부의 인권감수성 점수가 가장 높게 나타난 에피소드는 이주노동자의 노동권과 노인의 행복권이며, 인권감수성 점수가 가장 낮게 나타난 에피소드는 구금으로부터의 자유권, 사생활권이다. 또한, 인권감수성의 하위요인 중 책임지각과 상황지각이 결과지각보다 높다. 둘째, 대학운동부 특성에 따른 대학운동부의 인권감수성은 학교운동부규모, 수상실적에 따라 유의한 차이가 있다. 셋째, 대학운동부의 교육특성에 따른 대학운동부의 인권감수성 수준은 유의한 차이가 있다.