J Sports Sci Med. 2012 Sep 1;11(3):452-8. eCollection 2012.
Golfers have better balance than their age-matched counterparts; however, it is uncertain if this persists during the swing as a function of skill level. The purpose of the study was to investigate dynamic postural control (center of mass (COM) motion) measured during different phases of the swing in golfers of varying proficiency. Eighteen healthy golfers were grouped by handicap: novice (no handicap, n = 7), intermediate (handicap 15-19, n = 7), and advanced (handicap 9-14, n = 4). Indoor testing was performed hitting 3 tee shots using a common driver. A five-camera (60 Hz) motion analysis system (9 markers) was used to extract kinematics data. There were no significant group differences in gender, age, or BMI. Advanced players had lower COM displacement with respect to address at the time of maximum arm speed (p = 0. 001) compared to intermediate (57%, p = 0.014) and novice (73%, p = 0.023). These changes persisted after COM distance and time normalization. Advanced golfers had improved COM linearity during the downswing (p < 0.001) compared to intermediate (30%, p = 0.029) and novice (51%, p < 0.001). Advanced players had decreased COM displacement at the time of maximum arm speed and a more linear COM path during the early downswing. Further study should focus on these changes during ball launch conditions. Key pointsStudies suggest that static and dynamic balance is important in golf. However, none have investigated dynamic postural control during the golf swing in golfers of varying proficiency.Our findings suggest advanced players demonstrated improved postural control at the point of maximum arm speed when compared to less skilled players. Furthermore, center of mass acceleration in advanced players is closer to impact than less-skilled players.We observed an increased center of mass linearity of trajectory during the early downswing for advanced players over novice players. We theorized this strategy may help advanced golfers to improve the economy of COM motion during golf swing and improve the performance of the shot.
高尔夫球手的平衡能力优于同龄人群;然而,尚不确定这种优势是否会在挥杆过程中因技能水平的不同而持续存在。本研究的目的是调查不同熟练程度的高尔夫球手在挥杆过程中不同阶段的动态姿势控制(质心(COM)运动)。18 名健康的高尔夫球手根据差点分组:新手(无差点,n = 7)、中级(15-19 差点,n = 7)和高级(9-14 差点,n = 4)。室内测试使用常见的球杆进行了 3 次发球。使用五相机(60 Hz)运动分析系统(9 个标记)提取运动学数据。各组在性别、年龄或 BMI 方面没有显著差异。与中级(57%,p = 0.014)和新手(73%,p = 0.023)相比,高级球员在达到最大手臂速度时的 COM 位移相对于站位的幅度较小(p = 0.001)。这些变化在 COM 距离和时间归一化后仍然存在。与中级(30%,p = 0.029)和新手(51%,p < 0.001)相比,高级高尔夫球手在挥杆过程中 COM 的线性度更好。高级球员在达到最大手臂速度时的 COM 位移较小,在早期挥杆时的 COM 路径更线性。进一步的研究应该关注在发球条件下的这些变化。关键点研究表明,静态和动态平衡在高尔夫中很重要。然而,还没有研究不同熟练程度的高尔夫球手在挥杆过程中的动态姿势控制。我们的研究结果表明,与技术较差的球员相比,高级球员在达到最大手臂速度时表现出更好的姿势控制。此外,与技术较差的球员相比,高级球员的质心加速度更接近撞击点。我们观察到,与新手相比,高级球员在早期挥杆过程中 COM 轨迹的线性度增加。我们推测,这种策略可能有助于高级高尔夫球手在挥杆过程中提高 COM 运动的经济性,并提高击球表现。