健康人压痛阈特点的初步研究

关键词：压痛阈  疼痛  个体差异

Keywords:pressure pain threshold  pain  individual difference

摘要：

      摘要 目的：通过测量健康正常人的压痛阈值,分析中国人压痛阈特点，比较个体间及个体内压痛阈差异。 方法：一名施测者使用手持式压力测痛仪对37例健康正常受测者全身共12个部位进行压痛阈测量。这些受测点分布于身体两侧不同的组织如骨突、肌肉处。对每个受测点测量三次取平均值并分析不同个体之间以及个体内各受测点之间的压痛阈差异。 结果：不同个体间压痛阈差异具有显著性意义（P<0.05）；女性压痛阈值低于男性（P<0.05）；同一个体不同部位压痛阈差异具有显著性意义（P<0.05），但双侧对称部位压痛阈的差异则无显著性意义（P>0.05）。脊旁肌的压痛阈较高而骨突处的压痛阈较低。 结论：进行临床疼痛评估时在选择参照点以及结果分析中应重视压痛阈在个体间以及个体内的差异。分析压痛阈的影响因素以及建立适用于中国人群的压痛阈正常参考值是今后研究的任务。

Abstract:

      Abstract Objective:To characterize the pressure pain threshold （PPT）in healthy Chinese. Method：A total of 37 healthy subjects were recruited and PPT measurements were taken at 12 sites symmetrically distributed on both sides of the body using a hand-held pressure algometer by one rater. These sites were at different tissues such as apophyses and muscles. Three measures of PPT were taken at each site and the mean values were calculated for statistically analyzing the differences among individuals and different sites. Result:The inter-individual differences were significant (P<0.05) and females exhibited lower PPT at every site than males (P<0.05). PPT varied among different sites on one side（P<0.05）, but not different between the antimere sites of bilateral sides（P>0.05）.PPT value obtained from the paraspinal muscle was higher and that from the apophyses was lower than those at the other sites. Conclusion：On the individual level, due to the considerable variation found in the PPT results, cautions must be advised both in selecting the reference points and interpreting the results when using it as a method for clinical pain assessment. Analyzing the factors influencing the PPT measurements and establishing the normal range of PPT in Chinese needs further study.