Bisset Leanne M, Evans Kerrie, Tuttle Neil
Senior Lecturer, Griffith Health Institute, Griffith University, Gold Coast, Queensland, Australia.
Senior Lecturer, Griffith Health Institute, Griffith University, Gold Coast, Queensland, Australia.
J Manipulative Physiol Ther. 2015 May;38(4):282-7. doi: 10.1016/j.jmpt.2015.03.001. Epub 2015 Apr 27.
The purposes of this study were to determine whether there were differences in mean values or reliability for 2 frequently used protocols for pressure pain threshold (PPT) and to calculate how large a difference in PPT is necessary to be 95% confident that a real change has occurred.
Thirteen participants (8 females) aged 22.3 (±2.3) years from a university community were included. Two testers evaluated participants using 2 protocols, in which PPT was measured 3 times at 8 different body locations. The "cluster protocol" consisted of 3 successive measurements at each location with a 30-second rest between each measurement. The "circuit protocol" consisted of 1 measurement taken at each anatomical location until "the circuit" was complete and then repeated a total of 3 times.
A 2-way analysis of variance did not reveal significant differences between protocols at any body location (P = .46-.98). Intertester reliability was good to excellent for all locations (intraclass correlation coefficient, 0.84-0.96), and limits of agreement ranged from 108 to 223 kPa.
Either the cluster or circuit protocol can be used to measure PPT in clinical or research setting. A difference of 160 kPa is considered sufficient to indicate a real difference between repeated measures of PPT regardless of protocol used for testing.
本研究旨在确定两种常用的压力痛阈（PPT）测量方案在平均值或可靠性方面是否存在差异，并计算出PPT需要有多大差异才能有95%的把握确定发生了真实变化。
纳入了来自大学社区的13名参与者（8名女性），年龄为22.3（±2.3）岁。两名测试者使用两种方案对参与者进行评估，在8个不同身体部位测量PPT 3次。“聚类方案”包括在每个部位连续进行3次测量，每次测量之间休息30秒。“循环方案”包括在每个解剖部位进行1次测量，直到“循环”完成，然后总共重复3次。
双向方差分析未显示在任何身体部位两种方案之间存在显著差异（P = 0.46 - 0.98）。所有部位的测试者间可靠性良好至优秀（组内相关系数，0.84 - 0.96），一致性界限范围为108至223 kPa。
聚类方案或循环方案均可用于临床或研究环境中测量PPT。无论使用何种测试方案，PPT重复测量之间相差160 kPa被认为足以表明存在真实差异。
