The Effect Of Electromyographic Biofeedback On The Hand Function In Patients With Stroke

Objective with the improvement of modern medical diagnosisand treatment,the mortality has been reduced after stroke,but theincidence of stroke at our country and abroad is increasing,also themorbidity is greatly increasing.According to the principles of neuraldevelopment,the process of functional recovery of lower limb is fasterthan upper limb after stroke.the recovery from proximal to distal,so thelonger the recovery time by hand function,the poor recoveryresults.beacuse of the function of the hand plays an important role in ourdaily life,the study of stroke recovery of hand function is becoming a hotspot in recent years,the electromygraphic biofeedback gets more researchin them. EMG feedback as a treatment in recent years,has been widelyused in the hemiplegic limb dysfunction,and it achieved good effect.thisstudy was designed to explore an effective treatment of strokedysfunction,and to reduce the impact on daily life due to the limited handfunction.At the same time,the stuy want to make a further discussion inassessment the function of hand function.By observing the effect on handfunction in stroke patients with hemiplegia side,try to find a effective wayto improve hand function.Methods The preliminary experiment:Twopations in our rehabilitation department without significent defference insex,age,duration,nature of the lesions were recruited in preliminaryexperiment.After the EMG biofeedback therapy for11w,weeklyobserving the maximum EMG values in two patients extensor contractionof wrist dorsiflexion activity,the index finger and thumb pinching timeswithin two minutes of the release of,Fugl-Meyer assessment (FMA) armwrist and hand function rating:included wrist dorsiflexion,flexion,rotation movement of the ring finger flexion Group,fingers Groupdorsiflexion,hook grip,lateral pinch,etc.score24points.Collecting the experimental data in preliminary experiments,the reference results,depending on the disease formally experimental study of the selecteddesign.The formal experiments,the stroke patients qualifying80casesadmitted by random sequence number,and follow the spss21generatedrandomly divided into experimental group and control group. Bothgroups were to be routine exercise therapy,including sensorystimulation,strength training,balance training,joint mobilitytraining,drafting training,facilitation and suppression technology.40min/day,5times/w.In the experimental group receives EMG biofeedbacktherapy:stimulation time is10s,intermittent time is10s,20min/day,5times/w.The two groups were compared after treatment3w,6w,9w.ResultsBefore treatment,the two groups were the largest EMG extensor carpiactive contraction of wrist dorsiflexion active range of motion,within2min of the index finger and thumb pinching and release times,simplifyFMA arm wrist and hand function score were no significant differences(P>0.05);after the score after treatment in the control group wereincreased (P<0.01), compared with control group, the experimental groupscores were significantly increased (P <0.05),the difference there wasstatistically significant (P <0.05).Conclusion1:There are effective way toassessment the pations，hand function. the maximum value of the radialside of the wrist extensor EMG active contraction of wrist dorsiflexionactive range of motion,the index finger and thumb within two minutes ofkneading and release times,simplify the FMA upper handfunction.2:EMG biofeedback therapy combined with exercise therapy caneffectivly improve the hand side dysfunction post-stroke,and moreeffective than the exercise therapy alone.