a Human Performance Research Centre, Faculty of Health , University of Technology Sydney , Ultimo , Australia.
J Sports Sci. 2019 Feb;37(4):458-466. doi: 10.1080/02640414.2018.1505185. Epub 2018 Aug 1.
This study investigated the relationship between a range of neuromechanical variables in the lower- and upper-body, and golf performance. Participants were assessed for individual muscle stiffness, vertical stiffness (Kvert), flexibility, power and maximal isometric strength. Furthermore, golf performance was determined by handicap and club head speed. Pearson's correlations quantified the relationships between neuromechanical variables and performance measures. Participants were also separated into relatively high club head speed (HC) and low club head speed (LC) groups and compared for physical characteristics. Club head speed showed positive relationships with Kvert and power and a negative relationship with hip mobility. The HC group exhibited superior Kvert and power, while strength and flexibility measures were not related to performance. Higher levels of lower-body stiffness, rate of force development and power output appear to be beneficial for generating superior club head speed. A stiffer system may reduce the time needed to remove the "slack" from the series elastic component therefore, reducing electromechanical delay and enhancing rate of force development. The positive association with rate of force development suggests that increasing this component, along with power production may be superior focal components for training in golfers due to the short duration of the downswing.
本研究调查了下肢和上肢一系列神经力学变量与高尔夫表现之间的关系。参与者的个体肌肉僵硬度、垂直刚度 (Kvert)、柔韧性、功率和最大等长力量都进行了评估。此外，高尔夫表现由差点和球杆头速度决定。皮尔逊相关系数量化了神经力学变量与表现测量之间的关系。参与者还分为相对较高的球杆头速度 (HC) 和较低的球杆头速度 (LC) 组，并对其身体特征进行了比较。球杆头速度与 Kvert 和功率呈正相关，与臀部活动度呈负相关。HC 组表现出较高的 Kvert 和功率，而力量和灵活性测量与表现无关。更高水平的下肢僵硬度、力量发展率和功率输出似乎有利于产生更高的球杆头速度。更僵硬的系统可能会减少从弹性组件中去除“松弛”所需的时间，从而减少机电延迟并提高力量发展率。与力量发展率的正相关表明，由于挥杆时间很短，增加这个组件以及功率输出可能是高尔夫球手训练的更好焦点组件。
