지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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초록· 키워드
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The purpose of this study was to investigate the effects of different types of attentional focus(internal focus vs. external focus) on the dart throwing mechanics. Seven expert dart throwing athletes were assigned to an internal focus group and other seven athletes were assigned to an external focus group. Each group was asked to throw dart either under verbal instruction or without instruction. During dart throwing, accuracy(radial error), consistency(bivariate variable error), dart velocity, acceleration, elbow joint ROM, elbow joint angular velocity, EMD(electromechanical delay), iEMG of biceps brachii and triceps brachii, and CI(coactivation index) were collected and analyzed. Nither instruction type nor instruction itself affected in accuracy and consistency. However, in dart velocity and acceleration, there was an interaction between instruction and attentional focus types. Velocity and acceleration increased in the internal condition, where as they decreased in the external condition. The ROM of elbow joint did not affected by instruction and attention type. However, similar to dart velocity and acceleration, angular velocity increased in internal focus group, while it decreased in external focus group. EMG showed no difference with any condition. In conclusion, internal focus is better than external focus for dart throwing.
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참고문헌 (18)
참고문헌 신청
Al-abood, S. A. / 2001 / Specificity of task constraints and effects of visual demonstrations and verbal instructions in directing learners' search during skill acquisition / Journal of Motor Behavior 33(3):295~305
Beilock, S. L. / 2001 / On the fragility of skilled performance : What governs choking under pressure? / Journal of experimental psychology : General 130(4):701
Grosset, J. F. / 2009 / Paired changes in electromechanical delay and musculo-tendinous stiffness after endurance or plyometric training / European journal of applied physiology 105(1):131~139
Hodges, N. J. / 2002 / Modelling coaching practice : the role of instruction and demonstration / Journal of Sports Sciences 20(10):793~811
Kellis, E. / 2003 / Muscle co-activation around the knee in drop jumping using the co-contraction index / Journal of Electromyography and Kinesiology 13(3):229~238
Beilock, S. L. / 2001 / On the fragility of skilled performance : What governs choking under pressure? / Journal of experimental psychology : General 130(4):701
Grosset, J. F. / 2009 / Paired changes in electromechanical delay and musculo-tendinous stiffness after endurance or plyometric training / European journal of applied physiology 105(1):131~139
Hodges, N. J. / 2002 / Modelling coaching practice : the role of instruction and demonstration / Journal of Sports Sciences 20(10):793~811
Kellis, E. / 2003 / Muscle co-activation around the knee in drop jumping using the co-contraction index / Journal of Electromyography and Kinesiology 13(3):229~238
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