Experimentally induced deep cervical muscle pain distorts head on trunk orientation
Experimentally induced deep cervical muscle pain distorts head on trunk orientation
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DOI：
10.1007/s00421-013-2683-y
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发表时间：
2013-10-01
影响因子：
3
通讯作者：
Mans, Magnusson
中科院分区：
文献类型：
--
作者：
Eva-Maj, Malmstrom;Hans, Westergren;Mans, Magnusson
我们想探讨颈椎疼痛对感觉运动控制的具体本体感觉影响。感觉运动控制包括本体感觉反馈、中枢整合和随后的肌肉反应。疼痛可能是先前报道的关节运动学、头对躯干方向和姿势控制障碍的原因之一。然而，颈痛对本体感觉和感觉运动控制的影响之间的因果关系必须建立起来。在实验诱发颈部疼痛之前、之后和之后 15 分钟，使用 3D 运动分析仪检查了 11 名健康受试者在躯干目标上再现两个不同头部位置（NHP）和 30A 度目标位置的能力。疼痛是通过在一侧（称为“注射侧”）头夹肌中注入 C2/3 水平的高渗盐水引起的。所有受试者都经历了暂时性疼痛，并且在头部重新定位到注射侧 30A 度目标时，头部重新定位误差显着增加（p = 0.011）。事后分析表明，疼痛会在急性疼痛期间（p < 0.001）以及疼痛减弱时（p = 0.002）干扰注射侧的本体感觉。疼痛诱导后，30A 度目标位置的准确度立即下降，目标位置位于引起疼痛的一侧（3.3 -> 5.3A 度，p = 0.033），但不会下降到对侧（4.9 -> 4.1A 度，p = 0.657）。疼痛对 NHP 的准确性没有显着影响。一些受试者出现了感觉不匹配，他们出现了头晕。急性颈痛会扭曲感觉运动控制并导致侧面特异性变化，而且当疼痛减弱时也会产生更复杂的影响。
We wanted to explore the specific proprioceptive effect of cervical pain on sensorimotor control. Sensorimotor control comprises proprioceptive feedback, central integration and subsequent muscular response. Pain might be one cause of previously reported disturbances in joint kinematics, head on trunk orientation and postural control. However, the causal relationship between the impact of cervical pain on proprioception and thus on sensorimotor control has to be established.Eleven healthy subjects were examined in their ability to reproduce two different head on trunk targets, neutral head position (NHP) and 30A degrees target position, with a 3D motion analyser before, directly after and 15 min after experimentally induced neck pain. Pain was induced by hypertonic saline infusion at C2/3 level in the splenius capitis muscle on one side (referred to as "injected side").All subjects experienced temporary pain and the head repositioning error increased significantly during head repositioning to the 30A degrees target to the injected side (p = 0.011). A post hoc analysis showed that pain interfered with proprioception to the injected side during acute pain (p < 0.001), but also when the pain had waned (p = 0.002). Accuracy decreased immediately after pain induction for the 30A degrees target position to the side where pain was induced (3.3 -> 5.3A degrees, p = 0.033), but not to the contralateral side (4.9 -> 4.1A degrees, p = 0.657). There was no significant impact of pain on accuracy for NHP. A sensory mismatch appeared in some subjects, who experienced dizziness.Acute cervical pain distorts sensorimotor control with side-specific changes, but also has more complex effects that appear when pain has waned.