FU Shengxing,HOU Meijin,LI Zhenhui,YANG Fengjiao,WANG Xiangbin.Effects of Electro-Acupuncture on Vertical Ground Reaction Force and Impulse Symmetry of Patients with Knee Osteoarthritis during Stair Climbing[J].Journal of medical biomechanics,2020,35(4):335-341
电针对膝骨性关节炎患者登梯垂直地面反作用力及冲量对称性的影响
Effects of Electro-Acupuncture on Vertical Ground Reaction Force and Impulse Symmetry of Patients with Knee Osteoarthritis during Stair Climbing
Received:July 27, 2019  Revised:September 19, 2019
DOI:
Chinese key words:  电针  登梯  地面反作用力  对称性  膝骨性关节炎
English Key words:electro-acupuncture  stair climbing  ground reaction force(GRF)  symmetry  knee osteoarthritis (KOA)
Fund project:国家自然科学基金项目(81273819,81774384),福建省科学技术厅科技平台建设项目(2015Y2001),福建省科技厅引导性项目(2017Y0046)
Author NameAffiliation
FU Shengxing College of Rehabilitation Medicine, Fujian University of TCM
Key Laboratory of Orthopedics & Traumatology of Traditional Chinese Medicine and Rehabilitation (FuJian University of TCM), Ministry of Education 
HOU Meijin Research Center of Rehabilitation Medicine Technology, Fujian University of TCM
Key Laboratory of Orthopedics & Traumatology of Traditional Chinese Medicine and Rehabilitation (FuJian University of TCM), Ministry of Education 
LI Zhenhui College of Rehabilitation Medicine, Fujian University of TCM
Key Laboratory of Orthopedics & Traumatology of Traditional Chinese Medicine and Rehabilitation (FuJian University of TCM), Ministry of Education 
YANG Fengjiao College of Rehabilitation Medicine, Fujian University of TCM
Key Laboratory of Orthopedics & Traumatology of Traditional Chinese Medicine and Rehabilitation (FuJian University of TCM), Ministry of Education 
WANG Xiangbin College of Rehabilitation Medicine, Fujian University of TCM
Key Laboratory of Orthopedics & Traumatology of Traditional Chinese Medicine and Rehabilitation (FuJian University of TCM), Ministry of Education 
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Chinese abstract:
      目的 观察电针治疗对膝骨性关节炎患者登梯时下肢关节负荷的影响,探索电针的生物力学效应。方法 膝骨性关节炎患者40例,随机分配至电针观察组及浅刺对照组各20例,最终各18例完成研究。观察组选取7个膝周穴位,连接电针仪;对照组取膝周非经非穴点浅刺后,连接电针仪但不通电。分别于治疗前后采用三维步态分析系统进行登梯生物力学测试,计算垂直地面反作用力峰值、冲量及其对称性。结果 3周治疗后,观察组垂直地反力上梯右足峰值、下梯左足峰值较治疗前增加(P<0.05);上梯左右足冲量、下梯右足冲量较治疗前降低(P<0.05);峰值及冲量对称指数治疗前后比较差异无统计学意义(P>0.05)。浅刺组仅上梯冲量对称指数较治疗前增加(P<0.05)。两组各项指标治疗前后差值的组间比较均无统计学意义(P>0.05)。结论 电针能有效改善膝骨性关节炎患者登梯过程中的关节负荷能力,降低动态累积负荷,可能对减缓病程有帮助。
English abstract:
      Objective To observe the effects of electro-acupuncture on loading of lower limb joints in patients with knee osteoarthritis (KOA) during stair climbing and explore the related biomechanical mechanism. Methods Forty patients with KOA were randomly assigned, with 20 patients in observation group (electro-acupuncture group, EA group) and 20 patients in control group (superficial acupuncture group, SA group). Finally 18 patients in each group completed the study. In observation group, seven knee acupuncture points were chosen and patients were connected with electro-acupuncture instrument; while in control group, the electro-acupuncture instrument was connected but not electrified after superficial acupuncture at non-acupoint points. The three-dimensional gait analysis system was used to assess the biomechanical characteristics during stair climbing before and after treatment, including peak vertical force (PFz), vertical impulse (IFz) and symmetry index (SI%). Results After 3 weeks of treatment in EA group, PFz of the right foot during stair ascent and PFz of the left foot during stair descent increased (P<0.05); IFz of both feet during stair ascent and IFz of the right foot during stairs descent significantly decreased (P<0.05); no significant differences were found in SI% of peak and impulse (P>0.05). In SA group, only SI of impulse during stairs ascent increased (P<0.05). There was no significant difference between two groups before and after treatment (P>0.05). Conclusions Electro-acupuncture can effectively improve the joint load capacity and reduce the dynamic cumulative load of patients w
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