Lyons Kaitlyn M, Stock Matt S, Hanney William J, Anderson Abigail W
University of Central Florida, School of Kinesiology and Rehabilitation Sciences, College of Health Professions and Sciences, Orlando, Florida, USA.
University of Central Florida, Institute of Exercise Physiology and Rehabilitation Sciences, Orlando, Florida, USA.
Int J Sports Phys Ther. 2025 Apr 1;20(4):542-552. doi: 10.26603/001c.132173. eCollection 2025.
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.
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.
Observational Cohort, Crossover.
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.
HPT and PPT demonstrated good (HPT: ICC >0.741) to excellent reliability (PPT: ICC >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 HPT=0.903, PPT=0.815)( HPT=0.903, PPT=0.814) and UT (ICC HPT=0.867, PPT=0.729)( HPT=0.877 and PPT=0.744).
The 45-degree Roman Chair may reliably induce significant hypoalgesia over the LB assessed with HPT and PPT in healthy participants.
急性运动可能会导致疼痛敏感性降低,即运动诱发的痛觉减退(EIH)。45度罗马椅(下背部伸展)是一种动态抗阻运动,可能对下背部疼痛有益,因为它能直接使脊柱屈肌和伸肌负荷增加。然而,这种运动可靠地产生EIH的能力尚未得到研究。
本研究的目的是确定热痛阈(HPT)和压力痛阈(PPT)测量的可靠性,检查45度罗马椅运动后局部和全身的EIH效应,并确定不同训练之间是否能可靠地产生EIH。
观察性队列研究,交叉设计。
35名健康参与者(平均(标准差)年龄:21(1.39)岁,16名男性)至少间隔两天完成两个相同的训练。在安静休息前后评估上斜方肌(UT)和下背部(LB)的HPT和PPT,以检查这些测量的可靠性。在一组罗马椅运动前后重复测量HPT和PPT,直至运动无法继续,以检查EIH的可靠性。组内相关系数(ICC)用于检查可靠性,三因素重复测量方差分析用于比较安静休息和运动条件下HPT和PPT的变化。
HPT和PPT表现出良好(HPT:ICC>0.741)至优秀(PPT:ICC>0.810)的可靠性。通过PPT评估,两个部位均出现显著的EIH(UT部位p<0.025,LB部位p<0.001),LB部位的效应量更大(ηp²>0.413)。用HPT评估时,LB部位观察到显著的EIH(p<(此处原文有误,推测为p<0.002)),但UT部位未观察到(p=0.059)。跨训练在LB部位(ICC HPT=0.903,PPT=0.815)(HPT=0.903,PPT=0.814)和UT部位(ICC HPT=0.867,PPT=0.729)(HPT=0.877,PPT=0.744)均能可靠地诱发EIH。
45度罗马椅可能会在健康参与者中通过HPT和PPT可靠地诱发下背部显著的痛觉减退。
3级。