Effects of pivoting neuromuscular training on pivoting control and proprioception.
Effects of pivoting neuromuscular training on pivoting control and proprioception.
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DOI：
10.1249/mss.0000000000000249
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发表时间：
2014-07
影响因子：
4.1
通讯作者：
Zhang LQ
中科院分区：
文献类型：
--
作者：
Lee SJ;Ren Y;Chang AH;Geiger F;Zhang LQ
旋转神经肌肉控制和本体感觉敏锐度可能在ACL损伤中起重要作用。本研究的目的是调查是否枢转神经肌肉训练的离轴椭圆机（点），可以提高枢转神经肌肉控制，本体感觉敏锐度和功能性能。在41名受试者中，21名受试者参加了18次POINT（每周3次，持续6周），20名受试者作为对照组，他们进行常规锻炼。两组均接受干预前、中、后评估。采用多变量回归调整的倾向评分分析来研究训练对两组的旋转神经肌肉控制（旋转不稳定性、腿部旋转刚度、最大内外旋转角度）、本体感觉敏锐度和功能表现的影响。与对照组相比，训练组显著改善了枢转神经肌肉控制，减少了枢转不稳定性，减少了最大内部和外部枢转角度，增加了腿部枢转刚度，并减少了枢转扰动下臀大肌和外侧腓肠肌的EMG峰值时间熵。此外，训练组的负重本体感觉敏锐度增强，单腿跳跃距离增加。改善功能性负重活动中的枢转神经肌肉控制和POINT后的任务表现可能有助于开发下肢损伤预防和康复方法，以减少与枢转运动相关的ACL和其他肌肉骨骼损伤。
Pivoting neuromuscular control and proprioceptive acuity may play an important role in ACL injuries. The goal of this study was to investigate whether pivoting neuromuscular training on an offaxis elliptical trainer (POINT) could improve pivoting neuromuscular control, proprioceptive acuity, and functional performance. Among 41 subjects, 21 subjects participated in 18 sessions of POINT (3 sessions/week for 6 weeks), and 20 subjects served as controls who did their regular workout. Both groups received pre-, mid-, and post-intervention evaluations. Propensity score analysis with multivariable regression adjustment was used to investigate the effect of training on pivoting neuromuscular control (pivoting instability, leg pivoting stiffness, maximum internal and external pivoting angles), proprioceptive acuity, and functional performance in both groups. Compared to the control group, the training group significantly improved pivoting neuromuscular control as reduced pivoting instability, reduced maximum internal and external pivoting angles, increased leg pivoting stiffness, and decreased entropy of time to peak EMG in the gluteus maximus and lateral gastrocnemius under pivoting perturbations. Furthermore, the training group enhanced weight-bearing proprioceptive acuity and improved the single leg hop distance. Improvement of pivoting neuromuscular control in functional weight-bearing activities and task performances following POINT may help develop lower limb injury prevention and rehabilitation methods to reduce ACL and other musculoskeletal injuries associated with pivoting sports.