• Title/Summary/Keyword: Basketball Players

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A Kinematic Analysis of the Upper-limb Motion of Wheelchair Basketball Free Throw Shooting (휠체어 농구 자유투 동작시 상지분절의 운동학적 분석)

  • Han, Hee-Chang;Yoon, Hee-Joong;Lee, Hoon-Pyo
    • Korean Journal of Applied Biomechanics
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    • v.13 no.3
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    • pp.181-197
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    • 2003
  • The Purpose of this study was to examine the kinematic analysis of the upper-limb motion of wheelchair basketball free throw shooting. Three-dimensional kinematic data were obtained from 8 male wheelchair basketball players performing a successful free throw. Players were divided into three groups, according to their IWBF classification(Group 1: 1 point players, Group 2: 2-2.5point players and Group 3:3.5-4 point players) Wheelchair basketball free throw motions were taken by video camera. The three-dimensional coordinates was processed by DLT. Players from Group 1 and 2 tended to release the ball from a lower height, with greater velocity and release angle. Players from Group 1 showed greater shoulder horizontal adduction and horizontal abduction angle, wrist ulnar flexion and radial flexion angle, and trunk angle. but players from Group 2 appeared lower shoulder abduction. Upper limb angular velocity showed most greatly in hands from Group 1, upperarm from Group 2, and forearm from Group 3.

Differences of Smoothness and Coordination of the Fingers and Upper Extremities between Skilled and Non-skilled Players during Receiving the Basketball (농구 패스 리시브 시 숙련자와 비숙련자 간의 동작의 부드러움과 손가락 및 상지 협응의 차이)

  • Park, Sangheon;Lim, Hee Sung;Yoon, Sukhoon
    • Korean Journal of Applied Biomechanics
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    • v.29 no.2
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    • pp.53-60
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    • 2019
  • Objective: The purpose of this study was to investigate the differences of smoothness and coordination of the fingers and upper extremities between skilled and non-skilled players during receiving the basketball. Method: Ten male recreational basketball players (age: $23.2{\pm}2.7yrs.$, career: $8.6{\pm}1.6yrs.$, height: $177.3{\pm}6.0$, weight: $72.9{\pm}8.5kg$) careering over five years and ten non-skilled males (age: $27.3{\pm}1.5yrs.$, height: $173.7{\pm}5.6$, weight: $73.2{\pm}12.6kg$) were participated in this study. Then, participants were asked to perform basketball receiving movement for ten times. The receiving movements were recorded by eight infrared cameras (Oqus 300, Qualisys, Sweden). The collected rad data were calculated to duration of basketball receiving, Jerk-Cost, CRP and CRP variability. Results: The CRP of MCP-Wr, Wr-El in skilled group were greater than non-skilled group (p<.05). The CRP variability of El-Sh in non-skilled group was greater than skilled group (p<.05). Conclusion: These results suggest that skilled players perform more effective movement for impact absorption from the basketball. Moreover, the skilled players have consistent movement patterns during basketball performance. Lastly, it is important to train finger sensation and cognitive ability of thrown basketball from the passer.

The Effect of the Active Release Technique on Balance and Functional Movement in Youth Basketball Players

  • Kwang-Nam Kim;Byoung-Hee Lee
    • Journal of Korean Physical Therapy Science
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    • v.31 no.1
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    • pp.1-15
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    • 2024
  • Background: This study was conducted to apply active release techniques to male youth basketball players to help improve physical development and damage prevention and improve performance through improved balance and functional movement. Design: Randomized control trial. Methods: The subjects included 33 youth basketball players who were randomly assigned to the experimental group (n=17) and the control group (n=16). For the experimental group, the active release technique was applied to the hip muscles, calf muscles, posterior thigh muscles based on the distribution of injuries surveyed in youth basketball players in the Korean Basksetball League. The Y-balance test and the functional reach test (FRT) were used to assess balance and the Functional Movement Screen (FMS) was used to assess functional movement. Interventions were conducted twice a week for 4 weeks at 40 minutes per session. The experimental group was the active release technique group, and static stretching, a common exercise therapy technique, and self-myofascial release using a foam roller were applied for 20 minutes. The control group received general exercise therapy and placebo active release technique. The placebo active release technique applies pressure only. results:The experimental group showed a greater improvement in balance, as evidenced by the FRT, compared to the control group, which received general exercise treatment. However, there was no statistically significant difference in improvement between the 2 groups. In the case of the experimental group, the difference in the Y balance test before and after the intervention was larger than that of the control group, but there was no statistically significant difference. Significant improvement was found in functional movement, as evidence by the FMS, for the trunk stability test (p < 0.05), in-line lunge test (p < 0.05), rotational stability test (p < 0.05), total score (p < 0.05). Conclusion: In this study, the active release technique improved the balance and functional movement of young basketball players more than general exercise therapy. The application of the active release technique is therefore expected to assist in physical development, prevent damage, and improve the performance of youth basketball players.

Effects of leucine-enriched essential amino acid supplementation on muscular fatigue and inflammatory cytokines in wheelchair basketball players

  • An, Young Hwan;Kim, Jisu;Kim, Hee-Jae;Lim, Kiwon
    • Korean Journal of Exercise Nutrition
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    • v.24 no.2
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    • pp.38-46
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    • 2020
  • [Purpose] This study aimed to investigate the effects of leucine-enriched essential amino acid (LEAA) supplementation on muscle fatigue and the level of inflammatory cytokines in wheelchair basketball players after a basketball game and interval training. [Methods] Of the ten recruited wheelchair basketball players (aged 34.5±8.9 years; lean body mass of 34.3±10.0 kg) who had spinal cord injury (SCI) and had undergone amputation, nine participated in the final test. These nine athletes received LEAA supplements (3 times 4.0 g/day) or placebo treatment in a double-blind, randomized, crossover study. We measured variables related to muscular fatigue and inflammatory response before the intense exercise and 4 days after recovery. [Results] The significant effect of LEAA supplementation was inhibition of circulating IL-6 levels in the LEAA-treated group compared with the placebo group (P < .05). However, no changes were observed in the TNF-α and creatinine kinase levels. Moreover, analysis of variance analysis showed no significant difference in the relative values of muscle soreness. However, the effect size analysis with Cohen's d reported a significant improvement in the relative values of whole body and back muscle soreness. [Conclusion] Our results revealed that LEAA supplementation before and after intense exercise could help reduce muscle soreness and IL-6 levels in wheelchair basketball players.

The Effects of Knee Brace on the Knee Muscular Neuro-Biomechanical Variables during the Rebound in Female Highschool Basketball Players (여자 고등학교 농구 선수들이 리바운드 점프 후 착지할 때 무릎보호대가 무릎의 근신경 생체역학적 변인에 미치는 효과)

  • Han, Ki-Hoon;Lim, Bee-Oh
    • Korean Journal of Applied Biomechanics
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    • v.17 no.4
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    • pp.107-113
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    • 2007
  • The purpose of this study were to investigate the effects of knee brace on the knee muscular neuro-biomechanical variables during the rebound in female highschool basketball players. Twelve high school female ($17.9{\pm}0.8years$) basketball players rebound jumped for maximal vertical height to sufficiently stress the anterior cruciate ligament with and without knee brace. Kinematic data were collected to estimate the knee flexion, abduction angles and jump height. The EMG data from the biceps femoris and rectus femoris was used to estimate the ratio of quadriceps muscle activity. Female athletes with knee brace showed more reduced the knee abduction angle and the ratio of quadriceps muscle activity at foot contact phase than without knee brace. In conclusion, Female athletes with brace reduced knee anterior cruciate ligament loads.

A Study on the perceptions of university basketball players the referee decision (대학농구 선수들의 심판 판정 인식에 관한 연구)

  • You, In-Young
    • Journal of Digital Convergence
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    • v.13 no.12
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    • pp.441-451
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    • 2015
  • The research objective of this study to provide a basis for university basketball players development university basketball players have recovered and fair confidence in the result of the determination of analyzes feel the referee judges recognized research players and referees and by the referee judged that consistency there is. The referee judged according to gender awareness and the impact analysis of college basketball players impartiality, promptness, consistency, reliability p <.05 level There was a statistically significant difference. The referee judged recognition and impact of the exhibition was a statistically significant difference in the p <.05 level of agility. The referee judged recognition and influence of the position was no statistically significant difference in the p <.05 level of agility. impact of the judgment determining recognition fairness, promptness, there was a statistically significant difference in the p <.001 level of reliability. The referee judged of the psychological state is assigned prejudice, there was a statistically significant difference in the p <.001 level.

Empirical Analysis on Change of Korean Male Pro- Basketball Players Draft System

  • Choi, Kyoung-Ho
    • Journal of the Korean Data and Information Science Society
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    • v.19 no.4
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    • pp.1081-1089
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    • 2008
  • Beginning in the 2007-2008 season, the men's pro-basketball league changed a foreigner selection method by introducing a draft system which leads to a tryout from the free agency system. Also in the same season, the woman's pro-basketball league changed its system from one that permitted foreign players to one that doesn't allow foreign player participation. The reason for this change is thought to be financial problems. However this institutional change brings about the reduction in the quality of basketball and it will affect spectators in a negative way. The empirical study attempted to analyze the effects which follows an institutional change in Korean men's pro-basketball. The research showed that the men's pro-basketball league wasn't affected at all due to foreigner selection method by a draft system that led to a tryout from the free agency system.

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Studies on the Maximal Oxygen Intake of the Korean - Part II. The Maximal Oxygen Intake of Korean Athletes - (한국인(韓國人) 청년남여(靑年男女)의 최대산소섭취량(最大酸素攝取量)에 관(關)한 연구(硏究) - 제(第) II 편(篇) 남여운동선수(男女運動選手)의 최대산소섭취량(最大酸素攝取量)에 관(關)하여 -)

  • Lee, Kee-Yong
    • The Korean Journal of Physiology
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    • v.1 no.1
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    • pp.91-101
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    • 1967
  • The maximal oxygen intake (MOI) was determined in 54 males (23 nonathletes, 10 basketball players, 8 hand ball players, 7 weight lifters and 6 long distance runners) and in 49 females (24 non-athletes, 16 basketball players and 9 volley ball players) by using a treadmill method outlined in Part I of the present investigation and the following results were obtained: (1) The maximal aerobic work capacity varied from the lowest value of 1,008 kg-m/min in female non-athletes to the highest value of approximately 2,000 kg-m/min in male basketball players and long distance runners. Values of other groups varied from 1,400 kg-m/min in male non-athletes and female athletes to 1,800 kg-m/min in male hand ball players. (2) The MOI per unit body weight varied from the lowest value of 41.3 ml/min/kg in female non-athletes to the highest value of 67.6 ml/min/kg in male long distance runners. Values of other groups were in the order of 47 to 55 ml/min/kg. (3) The heart rate during maximal aerobic work performance varied from the lowest value of approximately 180 per min in female basketball players and male long distance runners to the highest value of 190 or above in nonathletes of both sexes. (4) An estimate of oxygen debt as measured during 15 minutes following the maximal work was 3.841 in female non-athletes, 4.681 in female athletes, 5.561 in male non-athletes and 6.321 in male athletes. These results indicate that the MOI per unit body weight as well as the oxygen debt of Korean non-athletes were comparable to, while corresponding values of Korean athletes were considerably lower than, those of other countries such as Japan, the United States of America and Europe.

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The Effects of Sports Injury Prevention Training Program on the Ground Reaction Force during the Rebound in Female Highschool Basketball Players (스포츠상해 예방훈련이 여자고등학교 농구선수들의 리바운드 점프 후 착지 시 지면반력에 미치는 영향)

  • Lim, Bee-Oh;Chung, Chul-Soo;Shin, In-Sik;Kim, Suk-Bum;Nam, Ki-Jung;Lee, Sang-Woo;Park, Yong-Hyun
    • Korean Journal of Applied Biomechanics
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    • v.18 no.1
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    • pp.31-38
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    • 2008
  • The purpose of this study was to investigate the effects of anterior cruciate ligament (ACL) injury prevention program on the ground reaction force during the rebound in female highschool basketball players. Sixteen highschool female basketball players (ages 16 to 18 years) were participated in this study. Eight of these players participated in a 8-week ACL injury prevention program. Before and After ACL injury prevention program, initial peak value(%BW), maximum peak value(%BW), impulse(%BW sec), and loading rate(N/sec) were measured in the players. The experiment group after ACL injury prevention program showed significant decreased initial peak value, impulse, and loading rate.

A Comparison of Sex-based Differences in Knee Neuromuscular Biomechanical Factors during Basketball Rebound Jump (농구 리바운드 점프 후 착지 시 성별에 따른 무릎의 근신경 생체역학적 요인의 차이 규명)

  • Lim, Bee-Oh;Park, Yong-Hyun
    • Korean Journal of Applied Biomechanics
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    • v.17 no.3
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    • pp.23-29
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    • 2007
  • The purpose of this study were to investigate the differences between female and male basketball players in knee neuromuscular biomechanical factors during basketball rebound jump. Twelve high school female ($17.9{\pm}0.8years$) and twelve male ($19.0{\pm}1.6years$) basketball players rebound jumped for maximal vertical height to sufficiently stress the anterior cruciate ligament. Kinematic and ground reaction data were collected and combined with inverse dynamics to estimate the knee extensor and abductor torque. The EMG data from the biceps femoris and rectus femoris was used to estimate the ratio of quadriceps muscle activity. Female athletes showed more reduced knee flexion at foot contact, more increased knee abduction, extensor and abductor knee joint torque at foot contact, and quadriceps ratio at stance phase than those of male athletes. In conclusion, Female athletes showed differences in knee neuromuscular biomechanical factors than male athletes during basketball rebound jump.