Changes of Motor Control of Distal Joint and Motor Learning in Badminton Hitting Skills According to the Visual Feedback Types (Focused on Performance Curves)

Abstract

OBJECTIVES This study aims to compare the change of motor control of distal joint while badminton hitting on novice in accordance with visual feedback type.METHODS We offered digitized graph and 3D animation of upper limb to quantitative feedback(QN) group, and qualitative feedback(QL) group respectively. Dependent variables are kinematic variable of wrist joint. 27 young men were recruited into three groups, asked to perform forehand-underclear. 20trials for pre-test, 150trials for practice, each 20trials for post-test and retention-test were progressed. After each 10trials in practice step, we offered each feedbacks to each groups. Two-way repeated ANOVA was used to investigate the results.RESULTS Maximum extension angle of wrist joint improved more on QN then QL. Maximum flexion angular velocity of wrist joint improved more in QL than QN on eary phase of learning and retention-test. CONCLUSIONS Through this, it can be interpreted that QN has a positive effect on the motion control of the angular variable in the striking task, and QL has a positive effect on the faster improvement and retention than QN in the motor control of the angular velocity variable in the striking task. In conclusion, this study presents a new direction for the mechanism of motor control and cognitive structure for the distal joint of motor skills forming proximal-distal coordination patterns.