Department of Physical Therapy.
J Pain Res. 2008 Nov 1;1:35-41.
Pain catastrophizing is associated with the pain experience; however, causation has not been established. Studies which specifically manipulate catastrophizing are necessary to establish causation. The present study enrolled 100 healthy individuals. Participants were randomly assigned to repeat a positive, neutral, or one of three catastrophizing statements during a cold pressor task (CPT). Outcome measures of pain tolerance and pain intensity were recorded. No change was noted in catastrophizing immediately following the CPT (F((1,84)) = 0.10, p = 0.75, partial η(2) < 0.01) independent of group assignment (F((4,84)) = 0.78, p = 0.54, partial η(2) = 0.04). Pain tolerance (F((4)) = 0.67, p = 0.62, partial η(2) = 0.03) and pain intensity (F((4)) = 0.73, p = 0.58, partial η(2) = 0.03) did not differ by group. This study suggests catastrophizing may be difficult to manipulate through experimental pain procedures and repetition of specific catastrophizing statements was not sufficient to change levels of catastrophizing. Additionally, pain tolerance and pain intensity did not differ by group assignment. This study has implications for future studies attempting to experimentally manipulate pain catastrophizing.
疼痛灾难化与疼痛体验有关；然而，因果关系尚未确定。有必要进行专门操纵灾难化的研究，以确定因果关系。本研究纳入了 100 名健康个体。参与者被随机分配在冷加压任务（CPT）期间重复积极、中性或三种灾难化陈述之一。记录了疼痛耐受和疼痛强度的结果测量。CPT 后，灾难化没有立即发生变化（F((1,84)) = 0.10，p = 0.75，部分 η(2) < 0.01），与组分配无关（F((4,84)) = 0.78，p = 0.54，部分 η(2) = 0.04）。疼痛耐受（F((4)) = 0.67，p = 0.62，部分 η(2) = 0.03）和疼痛强度（F((4)) = 0.73，p = 0.58，部分 η(2) = 0.03）不因组而异。本研究表明，通过实验性疼痛程序可能难以操纵灾难化，并且重复特定的灾难化陈述不足以改变灾难化的水平。此外，疼痛耐受和疼痛强度不因组分配而异。本研究对未来试图通过实验性地操纵疼痛灾难化的研究具有启示意义。
