- balance penetrating acupuncture combined with rehabilitation training on upper limb spasticity in stroke hemiplegia / 中国针灸

OBJECTIVE@#To compare the therapeutic effect of - balance penetrating acupuncture combined with rehabilitation training and single rehabilitation training on upper limb spasticity in patients with stroke hemiplegia.@*METHODS@#A total of 60 patients with upper limb spasticity of stroke hemiplegia were randomized into an observation group and a control group, 30 cases in each one. On the basis of conventional western medication, rehabilitation training was adopted in the control group. On the basis of treatment in the control group, - balance penetrating acupuncture was applied from Jianyu (LI 15) to Binao (LI 14), Quchi (LI 11) to Shaohai (HT 3), Yanglingquan (GB 34) to Yinlingquan (SP 9), Xuanzhong (GB 39) to Sanyinjiao (SP 6), etc. of the affected side in the observation group. The treatment was given once a day, 5 days were as one course, with a 2-day interval between two courses, 4 courses were required in both groups. The classification of modified Ashworth spasticity scale (MAS), surface integrated electromyogram (iEMG) of affected upper limb and the scores of National Institute of Health stroke scale (NIHSS), Fugl-Meyer assessment (FMA) of upper limb and modified Barthel index (MBI) before and after treatment were observed, the therapeutic effect was evaluated in both groups.@*RESULTS@#①After treatment, the MAS classification reduced in both groups (<0.05), the cases of grade 0 to Ⅰ in the observation group were more than those in the control group (<0.05); iEMG values of the maximum isometric voluntary contraction of affected usculus biceps brachii, musculus triceps brachii, musculus flexor carpi, musculus extensor carpi, extensor digitorum, aductor pollicis brevis were increased in both groups (<0.05), and the variations of iEMG of above muscles on the affected side in the observation group were larger than those in the control group (<0.05). ②After treatment, the scores of NIHSS were decreased (<0.05), the scores of FMA, MBI were increased in both groups (<0.05), and the variations of NIHSS, FMA and MBI scores were larger than those in the control group (<0.05). ③The total effective rate was 93.3% (28/30) in the observation group, which was superior to 70.0% (21/30) in the control group (<0.05).@*CONCLUSION@#- balance penetrating acupuncture combined with rehabilitation training can improve upper limb spasticity, heighten the motor function of upper limb and daily self care in patients with stroke hemiplegia, its therapeutic effect is superior to single rehabilitation training.

Characteristics of Surface Electromyography in Maximum Isometric Voluntary Contraction of Ankle Dorsiflexors and Plantarflexors in Healthy Middle to Old People / 中国康复理论与实践

@#Objective To establish normal reference range of surface electromyography (sEMG) in related myoelectric activity when maximum isometric voluntary contraction of ankle dorsiflexors and plantarflexors in healthy middle to old people. Methods From Septem-ber to December, 2015, a total of 110 healthy people aged 41 to 75 years were divided into 41 to 50 years group, 51 to 60 years group and>60 years group according to age. The integral electrical values were measured in each subject by sEMG technique and analysis system under maximum isometric voluntary contraction of ankle dorsiflexors and plantarflexors. Results and Conclusion Under ankle dorsiflexion and plantar flexion movement modes, no significant difference was found in the integral electrical values of tibialis anterior muscle, long perone-al muscle, short tibial muscle and gastrocnemius among different groups (F<4.545, P>0.05). No significant difference was found in the inte-gral electrical values of different sides and different genders (F<7.028, P>0.05). Normal reference range for integral electrical values was es-tablished under maximum isometric voluntary contraction of ankle dorsiflexors and plantarflexors in healthy people.

Characteristics of Surface Electromyography in Maximum Isometric Voluntary Contraction of Ankle Dorsiflexors and Plantarflexors in Healthy Middle to Old People / 中国康复理论与实践

@#Objective To establish normal reference range of surface electromyography (sEMG) in related myoelectric activity when maximum isometric voluntary contraction of ankle dorsiflexors and plantarflexors in healthy middle to old people. Methods From Septem-ber to December, 2015, a total of 110 healthy people aged 41 to 75 years were divided into 41 to 50 years group, 51 to 60 years group and>60 years group according to age. The integral electrical values were measured in each subject by sEMG technique and analysis system under maximum isometric voluntary contraction of ankle dorsiflexors and plantarflexors. Results and Conclusion Under ankle dorsiflexion and plantar flexion movement modes, no significant difference was found in the integral electrical values of tibialis anterior muscle, long perone-al muscle, short tibial muscle and gastrocnemius among different groups (F<4.545, P>0.05). No significant difference was found in the inte-gral electrical values of different sides and different genders (F<7.028, P>0.05). Normal reference range for integral electrical values was es-tablished under maximum isometric voluntary contraction of ankle dorsiflexors and plantarflexors in healthy people.

Relationship between Surface EMG and Angle of Elbow Joint / 航天医学与医学工程

Objective To explore the correlation between the moving angle of elbow joint and surface electromyogram signal(sEMG)activities of biceps and triceps.Methods The eigenvalue of sEMG during elbow joint moving under constant load were calculated with means of root mean square(RMS)and integrated electromyogram(iEMG)in time domain.Results The experimental results showed that both the chavacteristics of RMS and iEMG for biceps differed from those of triceps.The sEMG activities of biceps increased with the increment of elbow joint angle,while those from triceps reached to the maximum values when elbow joint angle was 90?.Furthermore,the sEMG activities of triceps at the elbow angle of 45? was similar with that when elbow angle was 135?.Conclusion The sEMG from biceps and triceps can reflect the moving angle of elbow joint under constant load.

Working Posture and Muscle Tension according to Screen Position during VDT Operation

OBJECTIVE: To evaluate working condition in way of measuring working posture and muscle tension using the desktop personal computer and notebook personal computer having different screen height. METHOD: Seventeen healthy men performed wordprocessing task in three workstation: desktop PC on the conventional computer table (DPC (on)); desktop PC under the 'inside' type computer table (DPC (under)); notebook PC on the table (NPC). The viewing distance and angle, head and neck angle, thoracic bending and trunk inclination were measured. Muscle tension of right posterior neck muscle, upper trapezius, sternocleidomastoid (SCM), and upper back muscle was also measured by integrated electromyogram (IEMG). RESULTS: 1) The viewing distance was the longest in DPC (under). 2) The lower the screen height, the more downward viewing angle and more flexed position in upper neck. 3) The posterior neck muscle tension was the lowest in DPC (on). 4) Stooped position was most frequently seen in NPC and the highest tension of posterior neck muscle and upper back muscle was shown in NPC. 5) In relation between postural analysis and muscle tension, muscle tension decreased with increasing backward reclining position, and the neck and thorax became more erect with increasing in viewing distance. CONCLUSION: These results suggest that the stooped posture was worst and most frequently seen in NPC. If neck flexion is avoided, DPC (under) position could lessen the visual and musculoskeletal problem. More Ergonomical study would be needed about working posture using computer.