Changes in sensory and pain perception thresholds after linear polarized near-infrared light radiation in the trigeminal region
Changes in sensory and pain perception thresholds after linear polarized near-infrared light radiation in the trigeminal region
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DOI：
10.1179/crn.2005.025
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发表时间：
2005-07-01
影响因子：
1.6
通讯作者：
Shiba, R
中科院分区：
文献类型：
--
作者：
Kashima, K;Watanabe, N;Shiba, R
光谱近红外部分的线偏振光最近与多种肌肉骨骼疾病包括颞下颌疾病有关。本研究的目的是确定三叉神经区的短期线偏振近红外光辐射是否会影响正常受试者三叉神经介导区和颈部介导区的感觉和疼痛知觉阈值。35名正常女性志愿者参加了这项研究。每个受试者在右脸颊接受8分钟的放射治疗，比较放射前后右脸颊和右前臂的感觉/伤害知觉阈值。结果，本研究证明了两个区域的热致痛阈值显著升高，并且颈椎区域的热感觉阈值有升高的趋势。此外，在三叉神经区观察到振动敏感性的显著增加。综上所述，我们的研究结果进一步证明了暖感对人类热痛强度的负反馈影响，并为线偏振近红外光辐射在三叉神经区域的应用提供了理论依据。
Linearly polarized light in the near-infrared portion of the spectrum has recently been associated with a variety of musculoskeletal disorders including temporomandibular disorders. The purpose of this study was to determine whether short-term linearly polarized near-infrared light radiation in the trigeminal region affects sensory and pain perception thresholds in the trigeminally mediated region and in the cervically mediated region of normal subjects. Thirty-five normal female volunteers participated in this study. Each subject received an 8-minute course of irradiation in the right cheek, and sensory/nociceptive perception thresholds were compared before and immediately after the irradiation in the right cheek and the right forearm. As a result, this study demonstrated a significant elevation of the heat-induced pain threshold in both regions and a tendency for the warm sensation threshold to elevate in the cervical region. In addition, a significant increase in vibratory sensitivity was observed in the trigeminal region. In conclusion, our results provided additional evidence that the warming sensation has a negative feedback influence on heat pain intensity in humans, and provides a theoretical basis for the application of linear polarized near-infrared light radiation to the trigeminal region.