• 제목/요약/키워드: Basketball

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농구 3득점 점프슛 동작의 운동역학적 분석 (Kinetic Analysis of Three-Point Jump Shot in Basketball)

  • 이동진;정익수
    • 한국운동역학회지
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    • 제20권1호
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    • pp.49-55
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    • 2010
  • The purpose of the study was to analyze kinetic factors required to the three-point jump shot of the basketball games through 3-D analysis and ground reaction force(GRF) analysis. Six university male players participated in this study. The results of the study were showed that (1) resultant velocity in the center of mass(COM) was $0.84{\pm}0.27\;m/s$ since a player didn't shot a ball in the highest peak and shot ball at the moment of going up forward and vertical movement. Therefore, it is necessary to find a proper timing to shot a ball; (2) the angular velocity was largely increased in upper arm and fore arm out of the upper-limb segments and the hands had the largest angular velocity since the body is in a fixed situation and angular speed is rapidly increased by the wrist' snap with the rapid movement of upper arm and forearm at the time of release a ball; (3) it is judged that a player can shot a ball at the accurate and high release point when the player collects power vertically to the maximum by keeping GRF to the right and the rear in a proper way and by keeping the body's balance so that a large power may not be dispersed.

한국프로농구구단의 생산성분석: DEA를 중심으로 (A Productive Analysis of Sports Organizations in Korean Basketball League: Focused on DEA)

  • 김선민
    • 대한안전경영과학회지
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    • 제15권2호
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    • pp.255-262
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    • 2013
  • Due to the competition between the various professional events, it is imperative for the team's management to improve efficiency by removing the inefficiencies of the professional team in order to gain a competitive edge. This study use different Data Envelopment Analysis (DEA) models to measure the efficiency of professional sport organizations. In this mathematical-analytical study, this study first reviews the related literature to analyze the input/output variables. In the end, the variables were detected and the data for this study were gathered from the Korean Basketball League (KBL). While previous studies examine relative efficiency of Korean Professional baseball teams by using CCR model, this study fully utilize the DEA method to investigate Korean professional sports organizations' operating problem. Thus, this study propose full results of DEA analysis such as efficiency score (overall, technical, and scale efficiency), slacks in inputs and outputs of inefficient organizations, Malmquist index) As a result, this study provides not only the exact productivity information of a team and a way of improving a firm's productivity with a decision maker.

작약감초탕 섭취가 운동수행 후 혈당과 젖산의 변화에 미치는 영향 (Effects of Peony-Licorice Mixture Supplementation on Blood Glucose and Lactate Levels)

  • 하성;이호근;서동일
    • 대한본초학회지
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    • 제27권5호
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    • pp.93-97
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    • 2012
  • Background : The purpose of this study was to examine that the effects of Peony-Licorice (PL) mixture supplementation on post-exercise blood glucose and lactate in professional women basketball players. Methods: Eleven professional women basketball players were participated in this study. The subjects participated in two trials, PL supplementation and water supplementation. They did 20-meter shuttle run test, and measured blood glucose and lactate level before, immediately, after 3 minutes, after 5 minutes and after 10 minutes the test. Results: There was not interaction effect on blood glucose(p<0.433) and lactate(p<0.770) levels. Blood glucose and lactate levels were increased in PL group and water group after the test. Conclusion: PL supplementation could not affect changing blood glucose and lactate level. Therefore, we suggest that PL supplementation may not be positive ergogenic aid for improving exercise performance in professional women basketball players.

여자 프로농구선수의 무산소성 파워 분석 (The Analysis of Anaerobic Power in Professional Female Basketball Players)

  • 장정훈;남형천
    • The Journal of Korean Physical Therapy
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    • 제14권2호
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    • pp.172-180
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    • 2002
  • The purpose of this paper was to make an analysis of anaerobic power in professional female basketball players using the Wingate Test Method with bicycle ergometer. Twenty-three subjects(age $21.6\pm2.8years$, body height $178.0\pm7.4cm$, body weight $70.3\pm7.4kg$) were selected from professional female basketball team whose careers were over 10years and participated in this investigation. Each subject peformed a Wingate anaerobic power test to determine total work, peak power, mean power, fatigue index and blood lactate concentration. The following were obtained from result data analysis; 1. The Total Work of athletes was a $1128.7\pm120.6watt$ 2. The Peak Power of athletes was a $449.5\pm53.1watt$ 3. The Mean Power of athletes was a $369.1\pm39.4watt$ 4. The Fatigue Index of athletes was a $33.5\pm6.9\%$ 5. The blood lactate concentration was $1.85\pm0.85mM/L$ at the normal state and $3.16\pm1.53mM/L$ at the after Wingate test. The blood lactate concentration was $6.96\pm0.81mM/L$ after 3 minute and $6.95\pm1.05mM/L$ after 5 minutes.

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중학생들의 12주간 방과 후 농구 훈련 프로그램 참여가 신체활동능력과 학습관련요인에 미치는 영향 (Effects of basketball training program for 12 weeks of after school on physical abilities and learning related factors in middle school students)

  • 김동희;반선미;조성채;국두홍
    • 한국산학기술학회논문지
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    • 제19권9호
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    • pp.186-194
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    • 2018
  • 이 연구는 12주간 중학교 남학생의 방과 후 농구 훈련 프로그램 참여가 신체활동능력(심폐지구력, 유연성, 근력) 및 학습관련요인(인지강도, 인지속도, 집중력, 작업부하도)에 어떠한 영향을 주는지에 대하여 규명 하고자 총 20명의 참가자가 운동참여집단(10명)과 통제집단(10명)으로 나뉘었다. 본 연구의 통분석은 반복측정분산분석(Repeated Measure ANOVA)을 실시하고, 모든 자료의 유의수준은 ${\alpha}=.05$로 설정하였다. 분석한 결과 신체활동능력 변인 중 운동집단의 심폐지구력과 유연성은 통계적으로 유의하게 증가하였다. 그러나 운동집단의 악력은 통계적으로 유의하지는 않지만 증가하는 경향을 보였다. 학습관련요인 변인 중 운동집단의 인지강도, 인지속도, 집중력은 통계적으로 유의하지는 않으나 증가하는 경향을 보였고, 통제집단의 작업부하도는 통계적으로 유의하게 증가하였다. 이상의 결과를 종합해보면 방과 후 농구 훈련 프로그램의 참여는 중학생의 신체적인 성장과 발달과 학업성취도 측면에 긍정적인 영향을 줄 수 있을 것이라고 생각된다.

Graphical exploratory data analysis for ball games in sports

  • Yi, Seongbaek;Jang, Dae-Heung
    • Journal of the Korean Data and Information Science Society
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    • 제27권5호
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    • pp.1413-1421
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    • 2016
  • In this paper graphical exploratory data analyses are proposed for ball games in sports. The plot of sequence of scoring points of each team can be used to see how the playing game has been processed until the end of each set or quarter. With the plot of sequential score differences through all the games we can see a dominance of each team and the times of score changes, i.e., turnovers. The ternary plots show the contours of scoring compositions for each player and enable us to compare the scoring patterns of each team if any. Using the score sequence plot we also can see the score pattern distribution of players. For demonstration we use the results of the gold medal match between Russia and Brazil for men's volleyball and between USA and Spain for men's basketball at the London 2012 Summer Olympics.

무지외반증이 있는 농구 선수에서 발생한 족무지 근위 지골의 피로 골절에 대한 치료(1예 보고) (Treatment for the Stress Fracture of the Proximal Phalanx of the Great Toe in a Basketball Player with Hallux Valgus (A Case Report))

  • 박철현;이우천
    • 대한족부족관절학회지
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    • 제16권1호
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    • pp.70-72
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    • 2012
  • Stress fractures of the proximal phalanx of the great toe are rare. This fractures have been associated with halux valgus deformity in most reports. We performed open reduction and internal fixation with distal chevron osteotomy for the stress fracture of the proximal phalanx of the great toe in a basketball player with hallux valgus, and obtained successful bony union and rapid return to sports.

농구선수에서 발생한 만성 족저근막염이 동반된 외측 족저 신경 압박증 -증례 보고- (Lateral plantar nerve entrapment combined with a chronic plantar fasciitis in a basketball player -A case report-)

  • 이경태;김준범;양기원;김진수;박영욱
    • 대한정형외과스포츠의학회지
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    • 제9권2호
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    • pp.121-124
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    • 2010
  • 발바닥 부위에 반복적인 저 에너지의 자극이 가해지는 선수들에게는 건염, 피로 골절, 또는 과사용 증후군과 같은 병변이 자주 관찰된다. 운동 선수들에게 발생하는 발뒤꿈치 통증의 대부분의 원인은 족저 근막염이고, 이 는 족저 근막의 반복적 자극에 의해 발생한다. 대부분 보존적인 치료 방법으로 증상의 호전을 보이고 운동에 복귀한다. 흔하지는 않지만, 발뒤꿈치 통증의 원인이 되는 신경 압박병증도 반복적인 자극에 따른 신경의 주변조직 비후에 의해 발생할 수도 있다고 한다. 저자들은 발 부위에 저 에너지의 반복적인 자극이 가해지는 농구 선수에게서 만성 족저 근막염이 동반된 외측 족저 신경의 압박병증을 관찰하였고, 발생 가능한 기전과 증례를 문헌 고찰과 함께 보고하고자 한다.

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실시간 GNSS 위성측량기법의 비교연구 (A Study on the Comparison of Real Time GNSS Satellite Surveying Methods)

  • 이용창
    • 대한토목학회논문집
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    • 제28권4D호
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    • pp.579-586
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    • 2008
  • 본 연구에서는 농구코트 기준선을 모델로 가상기준점(VRS) 기법, DGPS 기법 및 휴대용 GPS 수신기를 사용한 절대측량기법(PP)을 실시간 적용하고 측위방법별로 획득한 수평궤적 및 고도성분의 분포를 실측제원과 비교 분석하였다. 연구결과, 실제 농구코드의 규격대비 수평궤적은 VRS, DGPS 및 PP 기법에서 각각 ${\pm}$수cm, ${\pm}m$${\pm}2m$의 편차 폭을 나타내었다. 또한, 코트의 경사도와 주요 점검점의 고도편차를 검토할 때, VRS 측량궤적은 실측제원에 매우 근접한 결과로 나타난 반면, DGPS 및 PP의 결과는 상대적으로 큰 편차를 보였다. GNSS 상시관측망의 통합 확대운영에 따른 양질의 VRS서비스와 서비스지역의 확대는 Single based RTK 대비 매우 효율적 기술로서 특히, 실시간 건설공사 현장 등에서 그 활용이 기대된다.