Arribas-Romano Alberto, Fernández-Carnero Josué, Rodríguez-Lagos Leonardo, Molina-Álvarez Miguel, Zabala-Zambrano Jesús, Lezaun-Hernández Lucas, Contreras-Padilla Lucía, Mercado Francisco
Escuela Internacional de Doctorado, Department of Physical Therapy, Occupational Therapy, Rehabilitation and Physical Medicine, Universidad Rey Juan Carlos, 28933 Madrid, Spain.
Cognitive Neuroscience, Pain and Rehabilitation Research Group (NECODOR), Faculty of Health Sciences, Rey Juan Carlos University, 28922 Madrid, Spain.
J Clin Med. 2024 Jun 22;13(13):3648. doi: 10.3390/jcm13133648.
: The aim of this study is to assess whether pain-inducing manual pressure (PIMP) leads to effects on pressure pain threshold (PPT) mediated by conditioned pain modulation (CPM) and whether these effects are influenced by the intensity and repetition of the stimulus. Additionally, the influence of psychological factors and physical activity on the response to PIMP was explored. : A total of 72 pain-free students were randomly assigned to three crossover trials. Trial 1 compared the effects of PIMP with the cold pressor task and pain-inducing electrostimulation. Trial 2 compared the effects of manual pressure that elicited moderate pain, mild pain, and no pain. Trial 3 compared a single PIMP stimulation with four stimuli applied at the same site or at different sites. : PIMP produced a lower increase in PPT than cold pressor task and no difference with electrostimulation. Manual pressure that caused moderate pain led to a greater increase in PPT compared to mild pain and pain-free application. Repetition of PIMP stimulus, whether at the same or different sites, did not significantly increase PPT compared to a single stimulation. No association with psychological factors or physical activity was found. : PIMP produces an increase in PPT, suggesting the involvement of CPM-related mechanisms.
本研究的目的是评估诱发疼痛的手动按压(PIMP)是否会导致由条件性疼痛调制(CPM)介导的对压力疼痛阈值(PPT)的影响,以及这些影响是否受刺激强度和重复次数的影响。此外,还探讨了心理因素和身体活动对PIMP反应的影响。
总共72名无疼痛的学生被随机分配到三个交叉试验中。试验1比较了PIMP与冷加压任务和诱发疼痛的电刺激的效果。试验2比较了引起中度疼痛、轻度疼痛和无疼痛的手动按压的效果。试验3比较了单次PIMP刺激与在同一部位或不同部位施加的四次刺激的效果。
与冷加压任务相比,PIMP导致PPT的升高幅度较小,与电刺激无差异。与轻度疼痛和无疼痛的施加相比,引起中度疼痛的手动按压导致PPT的升高幅度更大。与单次刺激相比,PIMP刺激的重复,无论在同一部位还是不同部位,均未显著增加PPT。未发现与心理因素或身体活动有关联。
PIMP会使PPT升高,提示CPM相关机制的参与。