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首页> 外文期刊>International journal of psychophysiology: official journal of the International Organization of Psychophysiology >Inter-individual responses to experimental muscle pain: Baseline anxiety ratings and attitudes to pain do not determine the direction of the sympathetic response to tonic muscle pain in humans
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Inter-individual responses to experimental muscle pain: Baseline anxiety ratings and attitudes to pain do not determine the direction of the sympathetic response to tonic muscle pain in humans

机译：对实验性肌肉疼痛的个体间反应：基线焦虑等级和对疼痛的态度并不能确定人对滋补性肌肉疼痛的交感反应的方向

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We have recently shown that intramuscular infusion of hypertonic saline, causing pain lasting similar to 60 min, increases muscle sympathetic nerve activity (MSNA) in one group of subjects, yet decreases it in another. Across subjects these divergent sympathetic responses to long-lasting muscle pain are consistent over time and cannot be foreseen on the basis of baseline MSNA, blood pressure, heart rate or sex. We predicted that differences in anxiety or attitudes to pain may account for these differences. Psychometric measures were assessed prior to the induction of pain using the State and Trait Anxiety Inventory (STAI), Pain Vigilance and Awareness Questionnaire (PVAQ), Pain Anxiety Symptoms Scale (PASS) and Pain Catastrophising Scale (PCS); PCS was also administered after the experiment. MSNA was recorded from the common peroneal nerve, before and during a 45-minute intramuscular infusion of hypertonic saline solution into the tibialis anterior muscle of 66 awake human subjects. Forty-one subjects showed an increase in mean burst amplitude of MSNA (172.8 +/- 10.6%) while 25 showed a decrease (69.9 +/- 3.8%). None of the measured psychological parameters showed significant differences between the increasing and the decreasing groups. We conclude that inter-individual anxiety or pain attitudes do not determine whether MSNA increases or decreases during long-lasting experimental muscle pain in healthy human subjects. (C) 2016 Elsevier B.V. All rights reserved.
机译：我们最近发现，肌肉注射高渗盐水会导致疼痛持续类似于60分钟，在一组受试者中增加肌肉交感神经活动（MSNA），而在另一组受试者中降低。在整个受试者中，这些对持久性肌肉疼痛的不同的同情反应随着时间的推移是一致的，因此无法根据基线MSNA，血压，心率或性别来预见。我们预测焦虑或对疼痛的态度差异可能是造成这些差异的原因。使用状态和特质焦虑量表（STAI），疼痛警觉和意识问卷（PVAQ），疼痛焦虑症状量表（PASS）和疼痛灾难性量表（PCS）对诱发疼痛之前的心理测量进行评估;实验后也给予PCS。在45分钟肌内向66名清醒人类受试者的胫骨前肌中输注高渗盐溶液之前和期间，从腓总神经记录了MSNA。 41名受试者显示MSNA的平均猝发幅度增加（172.8 +/- 10.6％），而25名受试者显示降低（69.9 +/- 3.8％）。测得的心理参数均未显示出增加和减少组之间的显着差异。我们得出结论，在健康的人类受试者中，个体间的焦虑或疼痛态度无法确定MSNA在长期实验性肌肉疼痛期间是增加还是减少。 （C）2016 Elsevier B.V.保留所有权利。

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