Reliability of Pain Thresholds and Exercise-Induced Hypoalgesia Following 45-Degree Roman Chair Exercise.

IF 2.1 Q3 SPORT SCIENCES International Journal of Sports Physical Therapy Pub Date : 2025-04-01 eCollection Date: 2025-01-01 DOI:10.26603/001c.132173

Kaitlyn M Lyons, Matt S Stock, William J Hanney, Abigail W Anderson

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Abstract

Background: Acute exercise may induce a reduction in pain sensitivity, termed exercise-induced hypoalgesia (EIH). The 45-degree Roman Chair (low back extension) is a dynamic resistance exercise that may be beneficial for low back pain as it allows for direct overload of the spinal flexors and extensors. However, the ability of this exercise to reliably produce EIH has not been examined.

Purpose: The purposes of this study were to determine the reliability of heat pain threshold (HPT) and pressure pain threshold (PPT) measures, examine local and systemic EIH effects after a 45-degree Roman chair exercise, and determine if EIH was produced reliably between sessions.

Study design: Observational Cohort, Crossover.

Methods: Thirty-five healthy participants (mean(SD) age: 21(1.39) years, 16 male) completed two identical sessions at least two days apart. HPT and PPT at the upper trapezius (UT) and low back (LB) were assessed pre/post quiet rest to examine reliability of these measures. HPT and PPT were repeated pre/post one set of the Roman chair exercise until failure to examine reliability of EIH. Intraclass Correlation Coefficients (ICC) examined reliability, and a three-way repeated measures ANOVA compared changes in HPT and PPT among quiet rest and exercise conditions.

Results: HPT and PPT demonstrated good (HPT: ICC_3,1 >0.741) to excellent reliability (PPT: ICC_3,1 >0.810). Significant EIH as assessed by PPT was demonstrated at both sites (p UT<0.025, LB<0.001) with larger effect sizes at the LB (ηp² >0.413). When assessed with HPT, significant EIH was observed over the LB (p<0.002) but not the UT (p=0.059) EIH can be reliably induced across sessions over the LB (ICC_3,1 HPT=0.903, PPT=0.815)(r HPT=0.903, PPT=0.814) and UT (ICC_3,1 HPT=0.867, PPT=0.729)(r HPT=0.877 and PPT=0.744).

Conclusion: The 45-degree Roman Chair may reliably induce significant hypoalgesia over the LB assessed with HPT and PPT in healthy participants.

Level of evidence: 3.

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45 度罗马椅运动后疼痛阈值和运动引起的低痛感的可靠性。

背景：急性运动可引起疼痛敏感性的降低，称为运动诱发痛觉减退（EIH）。45度罗马椅（下背部伸展）是一种动态阻力练习，可能对下背部疼痛有益，因为它允许脊柱屈肌和伸肌的直接过载。然而，这种练习可靠地产生EIH的能力尚未得到检验。目的：本研究的目的是确定热痛阈值（HPT）和压痛阈值（PPT）测量的可靠性，检查45度罗马椅运动后局部和全身EIH的影响，并确定EIH在两组之间是否可靠。研究设计：观察队列，交叉。方法：35名健康参与者（平均（SD）年龄：21（1.39）岁，16名男性）完成两个相同的疗程，间隔至少两天。静息前/静息后评估上斜方肌（UT）和下背部（LB）的HPT和PPT，以检验这些测量的可靠性。在一组罗马椅练习前后重复HPT和PPT，直到无法检验EIH的可靠性。类内相关系数（ICC）检验了可靠性，并采用三向重复测量方差分析比较了安静休息和运动条件下HPT和PPT的变化。结果：HPT和PPT的信度从良好（HPT: ICC3,1 >0.741）到优异（PPT: ICC3,1 >0.810）。PPT评估显示，两个地点均有显著的EIH （p UT0.413）。当用HPT评估时，在LB (p3,1 HPT=0.903， PPT=0.815)（r HPT=0.903， PPT=0.814）和UT (ICC3,1 HPT=0.867， PPT=0.729)（r HPT=0.877， PPT=0.744）中观察到显著的EIH。结论：在健康受试者中，45度罗马椅可可靠地诱发HPT和PPT评估的LB显著痛觉减退。证据等级：3。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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