MECHANISMS OF PAIN RELIEF BY VIBRATION AND MOVEMENT
MECHANISMS OF PAIN RELIEF BY VIBRATION AND MOVEMENT
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DOI：
10.1136/jnnp.55.4.282
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发表时间：
1992-04-01
影响因子：
11
通讯作者：
SHIBASAKI, H
中科院分区：
文献类型：
--
作者：
KAKIGI, R;SHIBASAKI, H
探讨了振动和运动引起的疼痛缓解机制。 CO2激光束，这是有用的纯伤害性刺激，用于记录疼痛相关的体感诱发电位（疼痛SEP），并测量疼痛阈值和反应时间（RT）。 同时施加振动刺激和手指的主动运动显着减少和延长疼痛SEP，增加痛阈，延长RT，表明增加的抑制机制的疼痛感觉是由同时通过的感觉输入介导的大的有髓纤维。 相反，持续冷却增强疼痛SEP和降低痛阈，可能是由于空间的总和两种伤害性冲动由相同的途径介导。 本研究的结果揭示了振动和运动减轻疼痛的机制。
Mechanisms of pain relief induced by vibration and movement were investigated. A CO2 laser beam, which is useful for pure nociceptive stimulation, was used for recording pain-related somatosensory evoked potentials (pain SEPs) and for measuring pain threshold and reaction time (RT). Concurrently applied vibratory stimuli to and active movements of the fingers significantly reduced and prolonged pain SEPs, increased pain threshold, and prolonged RT, indicating that an increase in the inhibitory mechanisms of painful feeling was induced by the concurrently adopted sensory inputs mediated by large myelinated fibres. In contrast, continuous cooling enhanced pain SEPs and decreased pain threshold, probably due to the spatial summation of two kinds of nociceptive impulses mediated by the same pathways. The results of this investigation throw light on the mechanisms of the alleviation of pain by vibration and movement.