운동역학: 기술수준에 따른 신체분절간 협응특성 비교 = The Characteristics of Inter-Segmental Coordination in Multi-Joint Movement as a Function of Skill Level

다국어 초록 (Multilingual Abstract)

Two groups of Taekwondoist(6 novices and 6 experts) were compared in a novice-expert paradigm with the cinematographic analyses of a whipping kick movement, in terms of coordination characteristics defined operationally as the relationship(cross correlation) between joint displacements, joint angular displacements (assumed respectively to indicate spatial coordination), linear joint velocities, and angular joint velocities (each assumed to reflect temporal coordination) of hip, knee, and ankle joints. Cross-correlations were analyzed as a function of skill level and movement phase with two-way(Skill Level×Movement Phase) ANOVA with repeated-measures on movement phase. Results indicated that significant sill level main effects were evident in cross-correlation between linear velocities of hip and knee joints as well as between linear velocities, angular displacements, and angular velocities, respectively, of hip and ankle joints. Also evidenced was the main effects due to movement phases in all cross-correlation comparisons. These results were interpreted to be indicative of the fact that movement coordination pattern is different as a function of skill level, and that the patterns of movement coordination vary in a characteristic way as movement progresses, basically in support of Bernsteinian tenets of skill learning.