Effects Of Low-Frequency Electrical Acupo Int Stimulation On Improving Walking Ability Of Poststroke Patients With Ankle Dorsiflexion Disorder

Objective:To observe the effects of different low-frequency electrical acupoint stimulation on walking ability of patients with ankle dorsal flexion disorder after stroke, and to explore the relationship between the active dorsal flexion angle of the ankle joint and walking ability. It is intended to optimize treatment plan and provide a strong basis for the improvement of clinical efficacy.Methods:We selected 60 post-stroke patients with ankle dorsal flexion disorder and randomly divided them into the control group and the treatment group,30 cases in each group. Both two groups of patients were treated with conventional therapy. The control group received the conventional low-frequency electrical acupoint stimulation treatment every day which lasted 30 mins and the whole course treatment was 4 weeks. Selecting 50Hz intermittent wave (intermittent ratio1:1) and the stimulating acupoints are Tsusanli and Yanglingquan on the affected side.The treatment group received flexor and extensor alternation of low-frequency electrical acupoint stimulation treatment and the stimulating acupoints are Tsusanli, Yanglingquan, Feiyang and Kunlun on the affected side. The electrical stimulation waveform, requency, frequency and duration of treatment in the treatment group were the same as the control group. Walking ability of patients was evaluated by using RM gait analysis system before and after treatment respectively. And the maximum ankle active dorsiflexion angle and lower extremity Fulg-Meyer score were measured. We used SPSS 23 statistical software for data processing and analysis.Results:l.The differences between before treatment and after treatment in walking speed, cadence, step-length on the affected side of two groups of patients were very significant (P<0.01). The difference between before treatment and after treatment of walking speed, cadence, step-length on the affected side in the treatment group was significant when compared with the control group (P<0.05), the treatment group was better than the control group.2.The differences between before treatment and after treatment in single support phase time on the affected side, double support phase time of two groups of patients were very significant (P<0.01). The difference between before treatment and after treatment of single support phase time on the affected side, double support phase time in the treatment group was significant when compared with the control group (P<0.05), the treatment group was better than the control group.3.The differences between before treatment and after treatment in the maximum ankle active dorsiflexion angle and lower extremity Fulg-Meyer score of two groups of patients were very significant (P<0.01). The difference between before treatment and after treatment of the maximum ankle active dorsiflexion angle in the treatment group was significant when compared with the control group (P<0.05), and the difference between before treatment and after treatment of lower extremity Fulg-Meyer score in the treatment group was very significant when compared with the control group (P<0.01), the treatment group was better than the control group.4.The differences between before treatment and after treatment in the maximum ankle active dorsiflexion angle and The differences between before treatment and after treatment in walking spatial and temporal parameters were analyzed by linear correlation, P<0.01, showing relevance.Conclusion:1.Both flexor and extensor alternation of low-frequency electrical acupoint stimulation treatment and the conventional low-frequency electrical acupoint stimulation treatment can improve the function of ankle back flexion of poststroke patients. In addition, they can improve the lower extremity motor function and walking ability.2.Flexor and extensor alternation of low-frequency electrical acupoint stimulation treatment is better than the conventional low-frequency electrical acupoint stimulation treatment on improving the function of ankle back flexion of poststroke patients.3. Ankle dorsal flexion function plays an important role in maintaining the balance and stability of lower limb loading and walking. It is an important factor of the walking ability.