电干针刺持续时间不会改变无症状个体反复伤害性热刺激后的疼痛反应:一项随机干预研究

IF 1.9 Q2 REHABILITATION
Max Jordon DPT, PhD, Matthew Grubb DPT, Frank Tudini DPT, DScPT
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引用次数: 0

摘要

目的评价5种不同持续时间的电干针(EDN)对无症状个体在反复伤害性热刺激后疼痛反应的影响。设计的随机、非对照干预试验。设置大学实验室。参与者无症状参与者(N=50)被招募参加研究,并被随机分为5组。共有33名女性,平均年龄26.8(±4.8)岁。要参与这项研究,个体的年龄必须在18岁至40岁之间,没有任何妨碍日常活动的肌肉骨骼损伤,并且没有怀孕或试图怀孕。干预措施参与者被随机分配接受5种不同持续时间的EDN:10、15、20、25和30分钟。为了进行EDN,在右侧L3和L5的腰棘突外侧插入2根单丝针。将针头留在原位,以2Hz的频率和幅度进行电刺激,这导致参与者对疼痛强度的评分为3至6(满分10)。主要结果测量EDN手术前后对重复热脉冲的疼痛程度变化。结果EDN后各组的疼痛反应程度显著降低(F(1,42)=94.12,P<;。001,ƞp2=.691)。然而,时间和组之间的相互作用并不显著(F(4,42)=1.019,P=.409,\414;p2=.088),这表明EDN的持续时间在减少时间总和方面没有优于其他持续时间。结论本研究表明,在无症状个体中,超过10分钟的EDN并不能在减轻对热伤害性刺激的疼痛程度方面提供任何额外的益处。需要对有症状的人群进行额外的研究,以便在临床环境中推广。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Duration of Electro-Dry Needling Does Not Change the Pain Response After Repeated Nociceptive Thermal Stimuli in Asymptomatic Individuals: A Randomized Intervention Study

Duration of Electro-Dry Needling Does Not Change the Pain Response After Repeated Nociceptive Thermal Stimuli in Asymptomatic Individuals: A Randomized Intervention Study

Duration of Electro-Dry Needling Does Not Change the Pain Response After Repeated Nociceptive Thermal Stimuli in Asymptomatic Individuals: A Randomized Intervention Study

Objective

To assess the effects of 5 different durations of electro-dry needling (EDN) on asymptomatic individuals’ pain response after repeated noxious thermal stimuli.

Design

Randomized, non-controlled intervention trial.

Setting

University laboratory.

Participants

Asymptomatic participants (N=50) were recruited for the study and randomized into 5 groups. There were 33 women with an average age of 26.8 (±4.8) years. To participate in the study, individuals had to be between the ages of 18 and 40, free of any musculoskeletal injury which prevented participation of daily activities, and not pregnant or trying to become pregnant.

Interventions

Participants were randomly assigned to receive 5 different durations of EDN: 10, 15, 20, 25, and 30 minutes. To perform the EDN, 2 monofilament needles were inserted lateral to the lumbar spinous processes of L3 and L5 on the right. Needles were left in situ with electrical stimulation at a frequency of 2 Hz and an amplitude which resulted in a 3 to 6 out of 10 intensity pain rating by the participant.

Main Outcome Measures

The change in the magnitude of pain in response to repetitive heat-pulses before and after the EDN procedure.

Results

There was a significant reduction in the magnitude of pain in response across the groups after EDN (F(1,42)=94.12, P<.001, ƞp2=.691). However, the interaction between time and group was not significant (F(4,42)=1.019, P=.409, ƞp2=.088), indicating that no duration of EDN was superior to another in reducing temporal summation.

Conclusions

This study suggests that in asymptomatic individuals, performing EDN beyond 10 minutes does not provide any additional benefits in the reduction of the magnitude of pain in response to thermal nociceptive stimuli. Additional study in symptomatic populations is required for generalizability in clinical settings.

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