下肢外骨骼机器人联合传统康复训练对脑卒中患者步行功能恢复的疗效观察

Effect of Exoskeleton Robot-assisted Rehabilitation Training on Motor Function and Gait Ability in Patients with Stroke

目的探究下肢外骨骼机器人联合康复训练对卒中后偏瘫患者下肢功能恢复情况的疗效。方法选取云南省第三人民医院康复医学科2023年1月至2024年2月收治的36例卒中后下肢偏瘫患者为研究对象,随机分为对照组(n=18)和观察组(n=18)。对照组予以传统康复治疗,观察组在传统康复治疗的基础上予以下肢外骨骼机器人训练,训练前及训练后2周评估患者下肢肌力(髂腰肌、股四头肌、腘绳肌、小腿三头肌、胫骨前肌);下肢运动能力:功能性步行能力量表(FAC)、10 m步行试验(10MWT)、步态分析(Tinetti评分);日常生活能力:ADL评估量表。用近红外功能成像对2名卒中后下肢偏瘫患者及2名健康志愿者运动状态下脑功能进行监测。结果训练2周后,观察组及对照组所有患者下肢功能均有改善。观察组髂腰肌肌力(P<0.01)、股四头肌(P<0.01)、腘绳肌(P<0.01);小腿三头肌(P<0.005),胫骨前肌(P<0.005)肌力较治疗前改善,差异具有统计学意义。观察组和对照组下肢运动能力均得到改善:功能性步行能力量表(FAC)得分提高(P<0.01)、10 m步行试验(10MWT)时间缩短(P<0.01)、步态分析(Tinetti评分)得分提高(P<0.01)。观察组和对照组日常生活能力(ADL评分)均有提高(P<0.01)。近红外脑功能成像实时监测,在外骨骼机器人步行运动状态下,观察到卒中后偏瘫患者2侧大脑半球脑网络连接强度较健康志愿者降低。结论2组治疗方案均有助于改善患者下肢功能,传统康复联合下肢外骨骼机器人联合康复训练对卒中后偏瘫患者下肢肌力及生活质量的改善更显著;增强2侧大脑半球的脑网络连接可能是促进偏瘫患者肢体功能恢复的潜在靶点。

Objective To explore the effect of exoskeleton robot-assisted rehabilitation training on lower limb motor and walking function in patients with hemiplegia after stroke.Methods We recruited 36 patients with lower limb hemiplegia after stroke in the Department of Rehabilitation Medicine of the Third People's Hospital of Yunnan Province,from January 2023 to February 2024.All patients received conventional rehabilitation,observation group received lower limb exoskeleton robot-assisted training.We assessed lower-extremity motor and walking function by following items:muscle strength(iliopsoas,quadriceps,hamstring,triceps,tibialis anterior),functional ambulation category Scale(FAC),10-meter walk test(10MWT),gait analysis(Tinetti score),ADL score.These measurements were performed before and after the intervention.In addition,we observed the brain network connectivity of 2 patients and 2 normal volunteers during the walking state by functional nearinfrared spectroscopy(fNIRS).Results After two weeks of intervention,all patients in the observation group and control group showed improvement in lower extremity function,and the improvement in the observation group was significant.The muscle strength of all patients was significantly improved in the observation group,iliopsoas muscle(P<0.01),quadriceps muscle(P<0.01),hamstring muscle(P<0.01);Triceps calf(P<0.005),anterior tibialis(P<0.005).The motor ability of the lower limb was improved in both the observation group and control group,FAC score increased(P<0.01),10MWT time was shortened than before(P<0.01),and Tinetti score was increased(P<0.01).The ADL score was improved significantly in the observation group(P<0.01).To compare with normal volunteers,the patients'brain map of fNIRS showed decreased inter-hemispheric connections.Conclusion Exoskeleton robot-assisted rehabilitation training on the lower limb can effectively improve the motor and walking function of patients with hemiplegia after stroke,and improve the quality of life.Enhancing brain network connectivity between interhemispheres might be a potential way to promote functional recovery of stroke patients’hemiplegic limbs.