Neuromuscular responses of the hamstring and lumbopelvic muscles during unanticipated trunk perturbations
Neuromuscular responses of the hamstring and lumbopelvic muscles during unanticipated trunk perturbations
复制标题
意外躯干扰动期间腘绳肌和腰盆肌的神经肌肉反应
DOI：
10.1080/02640414.2021.1996986
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发表时间：
2021
影响因子：
3.4
通讯作者：
Hirose Norikazu
中科院分区：
文献类型：
--
作者：
Higashihara Ayako;Mendiguchia Jurdan;Ono Takashi;Nagano Yasuharu;Sasaki Shogo;Mineta Shinshiro;Hirose Norikazu
当对手意外干扰运动员的动作时，通常会发生腿筋拉伤。我们检查了有或没有腿筋拉伤史的运动员在意外躯干扰动期间腿筋和躯干肌肉的神经肌肉反应。男性大学运动员（11 名有单侧腿筋受伤史，10 名没有受伤史）跪下，胸前安全带连接着向后拉动的电缆。他们被指示在施加扰动时等距抵抗力并保持其位置。在有或没有提示（CUE 或 NoCUE）的情况下释放压力。我们测量了躯干加速度、三维运动学数据以及竖脊肌、腹内斜肌、臀大肌、股二头肌长头和半腱肌的表面肌电图 (EMG) 信号。 NoCUE 组的最大躯干加速度和位移均较大 (p< 0.05)。在扰动任何被研究的肌肉后，肌电图振幅没有变化。与 CUE 刺激相比，受伤组的臀大肌和竖脊肌在 NoCUE 刺激中出现延迟（p < 0.05）。有腿筋拉伤史的运动员表现出腰盆肌的神经肌肉协调性降低，以应对意外的躯干运动。
Hamstring strain often occurs when an opponent unanticipatedly perturbs an athlete’s movements. We examined the neuromuscular responses of hamstring and trunk muscles during unanticipated trunk perturbations in athletes with and without a history of hamstring strain injury. Male college athletes (11 with a history of a unilateral hamstring injury and 10 without prior injury) knelt while wearing a chest harness attached to a cable that was pulled backward. They were instructed to resist the force isometrically and maintain their position when the perturbations were applied. The pressure was released with or without a cue (CUE or NoCUE). We measured trunk acceleration, three-dimensional kinematic data, and surface electromyography (EMG) signals of the erector spinae, internal oblique, gluteus maximus, biceps femoris long head, and semitendinosus muscles. Maximum trunk acceleration and displacement were greater with NoCUE in both groups (p< 0.05). EMG amplitude did not differ after perturbation of any investigated muscle. The injured group demonstrated a delayed onset of the gluteus maximus and erector spinae muscles in NoCUE versus CUE stimuli (p< 0.05). Athletes with a history of hamstring strain injury exhibited a reduced neuromuscular coordination of the lumbopelvic muscles in response to unanticipated trunk movement.