疼痛缓解对慢性非特异性腰痛患者步态特征的影响

Effect of Pain Relief on Gait Characteristics of Patients with Chronic Nonspecific Low Back Pain

目的观察针刺治疗后疼痛缓解对慢性非特异性腰痛(CNLBP)患者的步速、跨步长和地面反作用力(GRF)特征值的影响。方法2019年5月至12月,网络招募CNLBP受试者28例,随机分为等待治疗组(n=14)和针刺治疗组(n=14)。针刺治疗组接受针刺治疗,每次30 min,每周3次,共4周;等待治疗组入组后仅进行健康宣教,1个月后再接受治疗。所有受试者在入组后及1个月后采用三维运动捕捉系统进行平地步态测试,记录疼痛视觉模拟评分(VAS)及步行过程中的步速、跨步长和GRF特征值,并进行比较。结果干预后,两组VAS均降低(t>2.956,P<0.05),针刺治疗组VAS明显低于等待治疗组(t=-2.844,P=0.004)。两组干预前后步速和跨步长均无显著性差异(P>0.05)。干预前,两组间GRF特征值比较均无显著性差异(P>0.05);干预前后比较,两组内GRF特征值均无显著性差异(P>0.05)。结论针刺治疗1个月可以减轻CNLBP患者疼痛,但未能改善CNLBP患者步行过程中的运动表现。

Objective To observe the effects of pain relief after acupuncture on walking speed,step length and ground reaction force(GRF)of patients with chronic nonspecific low back pain(CNLBP)during walking.Methods From May to December,2019,28 CNLBP patients were randomly divided into waiting list group(n=14)and acupuncture group(n=14).The acupuncture group received acupuncture,30 minutes a time,three times a week,for four weeks.The waiting list group only received health education after enrollment until four weeks later.Gait analysis was performed with three-dimensional motion system for both groups after enrollment and one month later.The walking speed,step length and GRF characteristic values were recorded and compared,as well as Visual Analogue Score(VAS)for pain.Results After intervention,The VAS decreased in both groups(t>2.956,P<0.05),and was lower in the acupuncture group than in the waiting list group(t=-2.844,P=0.004).No significant difference in walking speed,step length and GRF characteristic values was found after intervention in both groups(P>0.05).Conclusion One month-acupuncture could relief the pain of CNLBP patients,however,it could not improve the performance during walking.