Motor abundance and control structure in the golf swing
Motor abundance and control structure in the golf swing
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DOI：
10.1016/j.humov.2016.01.009
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发表时间：
2016-04-01
影响因子：
2.1
通讯作者：
Wallace, E. S.
中科院分区：
文献类型：
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作者：
Morrison, A.;McGrath, D.;Wallace, E. S.
可变性和控制结构是高尔夫挥杆研究中代表性不足的领域。本研究使用非受控流形 (UCM) 分析研究了高水平和中级技术高尔夫球手在高尔夫挥杆中丰富自由度的使用。计算了相对于球杆头的方向和位置平行于（V-UCM）和正交于（V-Orth）UCM的方差。对于所有测量的结果变量，技术水平较高的高尔夫球手的 V-UCM 值均高于技术水平较低的球员。在球杆头方向和组合结果变量的控制中发现了运动协同作用，但在球杆头位置方面却没有发现。如前所述，杆头位置差异集中在击球时，而杆头方向差异在接近击球时增加。两种技能水平都增强了他们在击球前对杆头位置的控制，并且在下挥杆早期对杆头方向施加了更多控制。结果表明，要在高尔夫运动中达到更高的技术水平，可能不仅仅在于最佳技术，而更可能在于培养对身体丰富自由度的控制力。 (C) 2016 Elsevier B.V. 保留所有权利。
Variability and control structure are under-represented areas of golf swing research. This study investigated the use of the abundant degrees of freedom in the golf swing of high and intermediate skilled golfers using uncontrolled manifold (UCM) analysis. The variance parallel to (V-UCM) and orthogonal to (V-Orth) the UCM with respect to the orientation and location of the clubhead were calculated. The higher skilled golfers had proportionally higher values of V-UCM than lower skilled players for all measured outcome variables. Motor synergy was found in the control of the orientation of the clubhead and the combined outcome variables but not for clubhead location. Clubhead location variance zeroed-in on impact as has been previously shown, whereas clubhead orientation variance increased near impact. Both skill levels increased their control over the clubhead location leading up to impact, with more control exerted over the clubhead orientation in the early downswing. The results suggest that to achieve higher skill levels in golf may not lie simply in optimal technique, but may lie more in developing control over the abundant degrees of freedom in the body. (C) 2016 Elsevier B.V. All rights reserved.