골프 드라이브 스윙 시 3차원 동작과 족저압력의 운동역학적 분석

Abstract

Abstract

The purpose of this study was to research the most effective sport biomechanical movements when golf drive swing; six infrared rays cameras were used to analyze the sport biomechanical factors of skilled and unskilled golfers considering the gender difference and the Pedar-X system was used to analyze the foot plantar pressure. The subjects were five men and five women, respectively, who were five skilled and five unskilled golfers, hence twenty in total. Data processing such as calculating Mean (M) and Standard Deviation (SD) was performed by using SPSS Ver. 23.0 program. Independent t-test was done for statistical processing to perform the movement analysis based on the skilled and the unskilled, gender difference, phase comparison as well as the difference in foot plantar pressure. The results are as follows.

1) The phase-by-phase swing movement analysis of skilled and unskilled golfers Knee bending and stretching when drive swinging is to minimize the movements of lower body and maximize the swing of upper body in order to make a strong coiling movement. Moreover, one must keep bending the knee to minimize the movement so that the axis of rotation is fixed to prevent the sway phenomenon. In this way, the accuracy and consistency can be improved. When back swinging, right knee flexion would prevent the up-and-down sway and reduce the top ball. When having impact, left knee would straighten still without changing the angle of the body so that the flying distance can be improved.

2) The phase-by-phase swing movement analysis according to gender Rotation is important when golf swinging. In order to advance the rotation movement, it is desirable to rotate for the energy to flow from the core of the body to the drunk, arm and club in this order to speed up the body segment. Since women are physically less muscular but more flexible than men, women can swing using the flexibility while men are less capable of swinging due to the lack of flexibility. Therefore, advancing the flying distance is possible if the women exercise weight training to improve the muscles while the men exercise to increase the flexibility. 3) The phase-by-phase maximum foot plantar pressure of skilled and unskilled golfers As a result of analysis, the maximum foot plantar pressure is optimal when the right fore foot is on the ground at the moment of impact and the weight is moved to the left foot right after the impact. Such movement is considered to improve the stability, directivity and accuracy of the impact.

4) The phase-by-phase average foot plantar pressure according to gender The phase-by-phase average foot plantar pressure is higher for men than women. In case of address, women have higher right foot plantar pressure than men. This phenomenon causes the larger swing arc, addressing in the state of the weight moved to slightly right to prevent the reverse pivoting. Consequently, coaches should lead the female golfers to perform back swing with the weight moved to right side when addressing in order to prevent the reverse pivoting so that they can upper blow swing.