Brellenthin Angelique G, Crombie Kevin M, Cook Dane B, Sehgal Nalini, Koltyn Kelli F
Department of Kinesiology, University of Wisconsin-Madison, Madison, Wisconsin, USA.
William S. Middleton Memorial Veterans Hospital, Madison, Wisconsin, USA.
Pain Med. 2017 Mar 1;18(3):538-550. doi: 10.1093/pm/pnw275.
The purpose of this study was to examine psychosocial influences on exercise-induced hypoalgesia (EIH).
Randomized controlled trial.
Clinical research unit in a hospital.
Fifty-eight healthy men and women (mean age = 21 ± 3 years) participated in this study.
Participants were first asked to complete a series of baseline demographic and psychological questionnaires including the Pain Catastrophizing Scale, the Fear of Pain Questionnaire, and the Family Environment Scale. Following this, they were familiarized with both temporal summation of heat pain and pressure pain testing protocols. During their next session, participants completed the Profile of Mood States, rated the intensity of heat pulses, and indicated their pressure pain thresholds and ratings before and after three minutes of submaximal, isometric exercise. Situational catastrophizing was assessed at the end of the experimental session.
Results indicated that experimental pain sensitivity was significantly reduced after exercise ( P < 0.05). Men and women did not differ on any of the measured psychosocial variables ( P > 0.05). Positive family environments predicted attenuated pain sensitivity and greater EIH, whereas negative and chronic pain-present family environments predicted worse pain and EIH outcomes. Situational catastrophizing and negative mood state also predicted worse pain and EIH outcomes and were additionally associated with increased ratings of perceived exertion and muscle pain during exercise.
This study provides preliminary evidence that psychosocial variables, such as the family environment and mood states, can affect both pain sensitivity and the ability to modulate pain through exercise-induced hypoalgesia.
本研究旨在探讨社会心理因素对运动诱导性痛觉减退（EIH）的影响。
随机对照试验。
医院的临床研究单位。
58名健康男性和女性（平均年龄 = 21 ± 3岁）参与了本研究。
参与者首先被要求完成一系列基线人口统计学和心理问卷，包括疼痛灾难化量表、疼痛恐惧问卷和家庭环境量表。在此之后，他们熟悉了热痛和压痛测试方案的时间总和。在他们的下一次会议期间，参与者完成了情绪状态剖面图，对热脉冲强度进行了评分，并在进行三分钟次最大强度等长运动前后指出了他们的压痛阈值和评分。在实验结束时评估情境灾难化。
结果表明，运动后实验性疼痛敏感性显著降低（P < 0.05）。男性和女性在任何测量的社会心理变量上均无差异（P > 0.05）。积极的家庭环境预示着疼痛敏感性降低和更大的运动诱导性痛觉减退，而消极和存在慢性疼痛的家庭环境预示着更差的疼痛和运动诱导性痛觉减退结果。情境灾难化和消极情绪状态也预示着更差的疼痛和运动诱导性痛觉减退结果，并且还与运动期间感知运动用力和肌肉疼痛评分增加有关。
本研究提供了初步证据，表明社会心理变量，如家庭环境和情绪状态，可以影响疼痛敏感性以及通过运动诱导性痛觉减退调节疼痛的能力。
