Sheikhi Bahram, Letafatkar Amir, Thomas Abbey C, Ford Kevin R
Biomechanics and Corrective Exercise Laboratory, Faculty of Physical Education and Sports Sciences, Kharazmi University, Mirdamad Blvd., Hesari St, Tehran, Iran.
Department of Kinesiology, University of North Carolina at Charlotte, Charlotte, NC, USA.
BMC Sports Sci Med Rehabil. 2021 Aug 17;13(1):92. doi: 10.1186/s13102-021-00326-9.
This study sought to determine the effects of a 6-week neuromuscular training (NMT) and NMT plus external focus (NMT plus EF) programs on trunk and lower extremity inter-segmental movement coordination in active individuals at risk of injury.
Forty-six active male athletes (controls = 15, NMT = 16, NMT plus EF = 15) participated (age = 23.26 ± 2.31 years) in this controlled, laboratory study. Three-dimensional kinematics were collected during a drop vertical jump (DVJ). A continuous relative phase (CRP) analysis quantified inter-segmental coordination of the: (1) thigh (flexion/extension)-shank (flexion/extension), (2) thigh (abduction/adduction)-shank (flexion/extension), (3) thigh (abduction/adduction)-trunk (flexion/extension), and (4) trunk (flexion/extension)-pelvis (posterior tilt/anterior tilt). Analysis of covariance compared biomechanical data between groups.
After 6 weeks, inter-segmental coordination patterns were significantly different between the NMT and NMT plus EF groups (p < 0.05). No significant differences were observed in CRP for trunk-pelvis coupling comparing between NMT and NMT plus EF groups (p = 0.134), while significant differences were observed CRP angle of the thigh-shank, thigh-trunk couplings (p < 0.05).
Trunk and lower extremity movement coordination were more in-phase during DVJ in the NMT plus EF compared to NMT in active individuals at risk of anterior cruciate ligament injury.
The protocol was prospectively registered at UMIN_RCT website with ID number: UMIN000035050, Date of provisional registration 2018/11/27.
本研究旨在确定为期6周的神经肌肉训练（NMT）和神经肌肉训练加外部关注点（NMT+EF）计划对有受伤风险的活跃个体的躯干和下肢节段间运动协调性的影响。
46名活跃男性运动员（对照组=15人，NMT组=16人，NMT+EF组=15人）（年龄=23.26±2.31岁）参与了这项对照实验室研究。在垂直纵跳（DVJ）过程中收集三维运动学数据。连续相对相位（CRP）分析量化了以下节段间协调性：（1）大腿（屈伸）-小腿（屈伸），（2）大腿（内收外展）-小腿（屈伸），（3）大腿（内收外展）-躯干（屈伸），以及（4）躯干（屈伸）-骨盆（后倾/前倾）。协方差分析比较了各组之间的生物力学数据。
6周后，NMT组和NMT+EF组之间的节段间协调模式存在显著差异（p<0.05）。NMT组和NMT+EF组之间在躯干-骨盆耦合的CRP方面未观察到显著差异（p=0.134），而在大腿-小腿、大腿-躯干耦合的CRP角度方面观察到显著差异（p<0.05）。
在前交叉韧带损伤风险的活跃个体中，与NMT相比，NMT+EF组在DVJ过程中躯干和下肢运动协调性更趋于同相。
该方案已在UMIN_RCT网站上进行前瞻性注册，ID号：UMIN000035050，临时注册日期：2018年11月27日。
