• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Orthopaedic Journal of Sports Medicine >DOES BRAIN ACTIVATION DURING FUNCTIONAL MOVEMENT TASKS DIFFERENTIATE BETWEEN GOOD AND BAD MOVERS? AN INTEGRATED NEUROIMAGING ASSESSMENT OF MOTOR CONTROL IN YOUNG ATHLETES
【24h】

DOES BRAIN ACTIVATION DURING FUNCTIONAL MOVEMENT TASKS DIFFERENTIATE BETWEEN GOOD AND BAD MOVERS? AN INTEGRATED NEUROIMAGING ASSESSMENT OF MOTOR CONTROL IN YOUNG ATHLETES

机译：功能运动任务期间的大脑激活是否区分了好的和坏的搬运工？ 年轻运动员电机控制一体的神经影像评估

获取原文
       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Background: Aberrant frontal and sagittal plane knee motor control biomechanics contribute to increased anterior cruciate ligament (ACL) injury risk. Emergent data further indicates alterations in brain function may underlie ACL injury high risk biomechanics and primary injury. However, technical limitations have limited our ability to assess direct linkages between maladaptive biomechanics and brain function. Hypothesis/Purpose: (1) Increased frontal plane knee range of motion would associate with altered brain activity in regions important for sensorimotor control and (2) increased sagittal plane knee motor control timing error would associate with altered activity in sensorimotor control brain regions. Methods: Eighteen female high-school basketball and volleyball players (14.7 ± 1.4 years, 169.5 ± 7 cm, 65.8 ± 20.5 kg) underwent brain functional magnetic resonance imaging (fMRI) while performing a bilateral, combined hip, knee, and ankle flexion/extension movements against resistance (i.e., leg press) Figure 1(a). The participants completed this task to a reference beat of 1.2 Hz during four movement blocks of 30 seconds each interleaved in between 5 rest blocks of 30 seconds each. Concurrent frontal and sagittal plane range of motion (ROM) kinematics were measured using an MRI-compatible single camera motion capture system. Results: Increased frontal plane ROM was associated with increased brain activity in one cluster extending over the occipital fusiform gyrus and lingual gyrus ( p = .003, z & 3.1). Increased sagittal plane motor control timing error was associated with increased brain activity in multiple clusters extending over the occipital cortex (lingual gyrus), frontal cortex, and anterior cingulate cortex ( p & .001, z & 3.1); see Figure 1 (b). Conclusion: The associations of increased knee frontal plane ROM and sagittal plane timing error with increased activity in regions that integrate visuospatial information may be indicative of an increased propensity for knee injury biomechanics that are, in part, driven by reduced spatial awareness and an inability to adequately control knee abduction motion. Increased activation in these regions during movement tasks may underlie an impaired ability to control movements (i.e., less neural efficiency), leading to compromised knee positions during more complex sports scenarios. Increased activity in regions important for cognition/attention associating with motor control timing error further indicates a neurologically inefficient motor control strategy.
机译：背景：异常正面和矢状平面膝盖电机控制生物力学有助于增加前十字韧带（ACL）伤害风险。紧急数据进一步表明脑功能的改变可能是ACL损伤高危生物力学和初级伤害。然而，技术限制限制了我们评估不良生物力学和大脑功能之间的直接联系的能力。假设/目的：（1）增加额平面膝关节运动范围将与感觉电流控制的区域中的区域中的改变大脑活动相关联，（2）增加矢状平面膝盖电机控制定时误差将与传感器控制脑区域中的改变活动相关联。方法：十八女高中篮球和排球运动员（14.7±1.4厘米，169.5±7厘米，65.8±20.5千克）经历脑功能磁共振成像（FMRI），同时进行双侧，组合髋关节，膝关节和踝关节/抗阻抗的延伸运动（即腿部压力机）图1（a）。参与者在四个运动块期间完成了这项任务的1.2Hz的参考节拍，每次在30秒内交错在5秒之间的30秒之间。使用MRI兼容的单个摄像机运动捕获系统测量同时正面和运动平面运动（ROM）运动学。结果：增加的额平面ROM在椭圆形纺丝梭纺丝纺丝梭菌延伸的一个簇中的脑活动增加相关（P = .003，Z＆amp; GT; 3.1）。增加的矢状平面电机控制定时误差与延伸在枕骨皮层（舌旋转），前皮层和前铰接皮质（P＆amp; .001，Z＆amp; 3.1）上延伸的多个簇中的大脑活动增加了相关的大脑活动。见图1（b）。结论：增加膝关节额平面ROM和矢状平面定时误差与集成探测信息信息的区域增加的增加的关联可以指示膝关损伤生物力学的增加倾向，这些膝关节生物力学是通过降低的空间意识驱动和无法实现的适当控制膝盖绑架运动。在运动任务期间增加这些区域的激活可能使得控制运动（即，神经效率不太神经效率）的能力下降，导致在更复杂的体育场景期间受损的膝关节位置。对认知/注意与电动机控制定时误差的关联的重要活动进一步指示了神经学效率低效的电动机控制策略。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号