检索结果-南通市图书馆

Neuroscience Bulletin 2024年第1期40卷 79-89页

作者： Guozheng Wang Yi Yang Kangli Dong Anke Hua Jian Wang Jun Liu Key Laboratory for Biomedical Engineering of Ministry of Education College of Biomedical Engineering&Instrument ScienceZhejiang UniversityHangzhou 310058China Taizhou Key Laboratory of Medical Devices and Advanced Materials Research Institute of Zhejiang University-TaizhouTaizhou 318000China Department of Sports Science College of EducationZhejiang UniversityHangzhou 310058China Center for Psychological Science Zhejiang UniversityHangzhou 310058China

Sensory conflict impacts postural control,yet its effect on cortico-muscular interaction remains underexplored.We aimed to investigate sensory conflict's influence on the cortico-muscular network and postural stability.We used a rotating platform and virtual reality to present subjects with congruent and incongruent sensory input,recorded EEG(electroencephalogram)and EMG(electromyogram)data,and constructed a directed connectivity network.The results suggest that,compared to sensory congruence,during sensory conflict:(1)connectivity among the sensorimotor,visual,and posterior parietal cortex generally decreases,(2)cortical control over the muscles is weakened,(3)feedback from muscles to the cortex is strengthened,and(4)the range of body sway increases and its complexity decreases.These results underline the intricate effects of sensory conflict on cortico-muscular networks.During the sensory conflict,the brain adaptively decreases the integration of conflicting information.Without this integrated information,cortical control over muscles may be lessened,whereas the muscle feedback may be enhanced in compensation.

关键词： Cortico-muscular interaction Postural control Virtual reality Electroencephalogram electromyography Sensory integration

Special electromyographic features in a child with paramyotonia congenita: A case report and review of literature

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Clinical Cases 2024年第3期12卷 587-595页

作者： Hui Yi Chen-Xiang Liu Shu-Xin Ye Yu-Lin Liu Department of Neuroelectrophysiology Qilu Children’s Hospital of Shandong UniversityJinan 250000Shandong ProvinceChina Department of Neuroelectrophysiology University of Health and Rehabilitation Sciences(Qingdao Municipal Hospital)Qingdao 266000Shandong ProvinceChina

BACKGROUND Paramyotonia congenita(PMC)stands as a rare sodium channelopaty of skeletal muscle,initially identified by Eulenburg.The identification of PMC often relies on electromyography(EMG),a diagnostic technique.The child’s needle EMG unveiled trains of myotonic discharges with notably giant amplitudes,alongside irregular wave trains of myotonic discharges.This distinctive observation had not surfaced in earlier studies.CASE SUMMARY We report the case of a 3-year-old female child with PMC,who exhibited la-ryngeal stridor,muffled speech,myotonia from birth.Cold,exposure to cool water,crying,and physical activity exacerbated the myotonia,which was relieved in warmth,yet never normalized.Percussion myotonia was observable in bilateral biceps.Myotonia symptoms remained unchanged after potassium-rich food consumption like bananas.Hyperkalemic periodic paralysis was excluded.Cranial magnetic resonance imaging yielded normal results.Blood potassium remained within normal range,while creatine kinase showed slight elevation.Exome-wide genetic testing pinpointed a heterozygous mutation on chromosome SCN4A:c.3917G>A(p.G1306E).After a six-month mexiletine regimen,symptoms alleviated.CONCLUSION In this case revealed the two types of myotonic discharges,and had not been documented in other studies.We underscore two distinctive features:Giant-amplitude potentials and irregular waves.

关键词： Paramyotonia congenita Channelopathy electromyography Child Case report

Comparative study of surface electromyography of masticatory muscles in patients with different types of bruxism

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Clinical Cases 2022年第20期10卷 6876-6889页

作者： Kai-Wen Lan Liu-Lin Jiang Ying Yan Hospital of Stomatology Sun Yat-sen UniversityGuangdong Provincial Key Laboratory of StomatologyGuanghua School of StomatologyGuangzhou 510080Guangdong ProvinceChina

BACKGROUND Bruxism is a rhythmic masticatory muscle activity that occurs involuntarily in a non-physiologically functional state.There is a lack of research classifying the functional status of masticatory muscles in patients with different mandibular movement types(centric clenching or eccentric grinding)of bruxism.AIM To assess the differences of the masticatory muscle activity in patients with different types of bruxism.METHODS A total of 21 subjects with centric bruxism(CB)and 21 subjects with eccentric bruxism(ECB)were screened from college students according to a questionnaire and their tooth wear features.Sixteen subjects with no bruxism were also recruited.The surface electromyography(EMG)signals of the temporalis anterior(TA)and superficial masseter muscle(MM)were measured in different mandibular positions and during the chewing task.The EMG amplitude and chewing cycle duration parameters were then analyzed.RESULTS The CB group showed fewer muscle maximal motor units,with the MM being more pronounced,a higher proportion of muscle contractions to be recruited for the same load of chewing activity,and a longer chewing cycle.The ECB group showed more TA maximal motor units and higher MM activity on the nonworking side in unilateral chewing.CONCLUSION CB mainly affects the MM,and patients with CB show reduced masticatory muscle contraction efficiency and chewing cycle efficiency.ECB mainly affects the TA,and patients with ECB show enhanced contraction of non-functional lateral muscle bundles.

关键词： Bruxism electromyography Masticatory muscles Mastication Tooth wear Classification

Neural Respiratory Drive Measured Using Surface electromyography of Diaphragm as a Physiological Biomarker to Predict Hospitalization of Acute Exacerbation of Chronic Obstructive Pulmonary Disease Patients

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Medical Journal 2018年第23期131卷 2800-2807页

作者： Dan-Dan Zhang Gan Ln Xaan-Feng Zhu Ling-Ling Zhang Jia Gao Li-Cheng Shi Jian-Hua Gu Jian-Nan Liu Chronic Airway Disease Research Office Department of RespiratoryGeriatric Hospital of Nanjing Medical UniversityJiangsu Province Geriatric HospitalNanjingJiangsu 210024China

Background: Neural respiratory drive (NRD) using diaphragm electromyography through an invasive transesophageal multi?electrode catheter can be used as a feasible clinical physiological parameter in patients with chronic obstructive pulmonary disease (COPD) to provide useful information on the treatment response. However, it remains unknown whether the surface diaphragm electromyogram (EMGdi) could be used to identify the deterioration of clinical symptoms and to predict the necessity of hospitalization in acute exacerbation of COPD (AECOPD) patients. Methods: COPD patients visiting the outpatient department due to acute exacerbation were enrolled in this study. All patients who were subjected to EMGdi and classical parameters such as spirometry parameters, arterial blood gas analysis, COPD assessment test (CAT) score, and the modified early warning score (MEWS) in outpatient department, would be treated effectively in the outpatient or inpatient settings according to the Global Initiative for Chronic Obstructive Lung Disease guideline. When the acute exacerbation of the patients was managed, all the examination above would be repeated. Results: We compared the relationships of admission?to?discharge changes (Δ) in the normalized value of the EMGdi, including the change of the percentage of maximal EMGdi (ΔEMGdi%max) and the change of the ratio of minute ventilation to the percentage of maximal EMGdi (ΔVE/EMGdi%max) with the changes of classical parameters. There was a significant positive association between ΔEMGdi%max and ΔCAT,ΔPaCO2, and ΔpH. The change (Δ) of EMGdi%max was negatively correlated with ΔPaO2/FiO2 in the course of the treatment of AECOPD. Compared with the classical parameters including forced expiratory volume in 1 s, MEWS, PaO2/FiO2, the EMGdi%max (odds ratio 1.143, 95% confidence interval 1.004–1.300) has a higher sensitivity when detecting the early exacerbation and enables to predict the admission of hospital in the whole cohort. Conclusions: The changes of surface EMGdi parameters had a dir

关键词： Acute Exacerbation of Chronic Obstructive Pulmonary Disease Neural Respiratory Drive Surface Diaphragm electromyography

Recognition of walking environments and gait period by surface electromyography

在线全文

学校读者我要写书评

暂无评论

Frontiers of Information Technology & Electronic Engineering 2019年第3期20卷 342-352页

作者： Seulki KYEONG Wonseok SHIN Minjin YANG Ung HEO Ji-rou FENG Jung KIM Department of Mechanical Engineering Korea Advanced Institute of Science and Technology (KAIST)

Recognizing and predicting the movement and intention of the wearer in control of an exoskeleton robot is very challenging. It is difficult for exoskeleton robots, which measure and drive human movements, to interact with humans. Therefore, many different types of sensors are needed. When using various sensors, a data design is needed for effective sensing. An electromyographic(EMG) signal can be used to identify intended motion before the actual movement, and the delay time can be shortened via control of the exoskeleton robot. Before using a lower limb exoskeleton to help in walking, the aim of this work is to distinguish the walking environment and gait period using various sensors, including the surface electromyography(sE MG) sensor. For this purpose, a gait experiment was performed on four subjects using the ground reaction force, human–robot interaction force, and position sensors with sEMG sensors. The purpose of this paper is to show progress with the use of sEMG when recognizing walking environments and the gait period with other sensors. For effective data design, we used a combination of sensor types, sEMG sensor locations, and sEMG features. The results obtained using an individual mechanical sensor together with sEMG showed improvement compared to the case of using an individual sensor, and the combination of sEMG and position information showed the best performance in the same number of combinations of three sensors. When four sensor combinations were used, the environment classification accuracy was 96.1%, and the gait period classification accuracy was 97.8%. Vastus medialis(VM) and gastrocnemius(GAS) were the most effective combinations of two muscle types among the five sEMG sensor locations on the legs, and the results were 74.4% in pre-heel contact(preHC) and 71.7% in pre-toe-off(preTO) for environment classification, and 68.0% for gait period classification, when using only the sE MG sensor. The two effective sE MG feature combinations were "mean absolute value(MAV), zero crossings(ZC)" and

关键词： Walking environment Gait Period Surface electromyography (sEMG) Exoskeleton

A Novel Estimating Method for Steering Efficiency of the Driver with electromyography Signals

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Mechanical Engineering 2014年第3期27卷 460-467页

作者： LIU Yahui JI Xuewu HAYAMA Ryouhei MIZUNO Takahiro State Key Laboratory of Automotive Safety and Energy Tsinghua University Research and Development Center jtekt co.ltd.

The existing research of steering efficiency mainly focuses on the mechanism efficiency of steering system, aiming at designing and optimizing the mechanism of steering system. In the development of assist steering system especially the evaluation of its comfort, the steering efficiency of driver physiological output usually are not considered, because this physiological output is difficult to measure or to estimate, and the objective evaluation of steering comfort therefore cannot be conducted with movement efficiency perspective. In order to take a further step to the objective evaluation of steering comfort, an estimating method for the steering efficiency of the driver was developed based on the research of the relationship between the steering force and muscle activity. First, the steering forces in the steering wheel plane and the electromyography （EMG） signals of the primary muscles were measured. These primary muscles are the muscles in shoulder and upper ann which mainly produced the steering torque, and their functions in steering maneuver were identified previously. Next, based on the multiple regressions of the steering force and EMG signals, both the effective steering force and the total force capacity of driver in steering maneuver were calculated. Finally, the steering efficiency of driver was estimated by means of the estimated effective force and the total force capacity, which represented the information of driver physiological output of the primary muscles. This research develops a novel estimating method for driver steering efficiency of driver physiological output, including the estimation of both steering force and the force capacity of primary muscles with EMG signals, and will benefit to evaluate the steering comfort with an objective perspective.

关键词： electromyography muscle activity steering efficiency estimating

Diagnostic value of orbicularis oculi muscle electromyography in functional epiphora

在线全文

学校读者我要写书评

暂无评论

World Journal of Clinical Cases 2020年第14期8卷 3000-3005页

作者： Hui Lu Pei-Dong Liu Xue Yao Zuo-Fen Wang Li-Fen Gao Shao-Peng Wang Department of Ophthalmology Zibo Central HospitalZibo 255000Shandong ProvinceChina Department of electromyography Zibo Central HospitalZibo 255000Shandong ProvinceChina

BACKGROUND Functional epiphora is a clinical condition which is not due to an anatomic defect.Most studies agree that it involves the action of the orbicularis oculi muscle,particularly its deeper segment(Horner’s muscle),but the exact mechanism is not clear.AIM To evaluate the orbicularis oculi muscle in functional epiphora patients using electromyography(EMG).METHODS A total of 8 Chinese patients(16 eyes)with functional epiphora were enrolled in this study,and ten volunteers(10 eyes)were included as normal controls.Five epiphora patients(five eyes)with facial palsy served as positive controls.Quantitative EMG was performed in the deeper segment of orbicularis oculi muscle.The average duration of each EMG waveform was measured.RESULTS The average duration of EMG waveforms in the normal control group,the functional epiphora group,and the facial palsy group were 6.39±0.73 ms,9.39±1.32 ms and 11.2±1.42 ms,respectively.The duration of EMG waveforms was significantly longer in the functional epiphora group than in the normal control group(P<0.05),and shorter than that in the facial palsy group(P<0.05).CONCLUSION These data indicate the presence of neurogenic orbicularis oculi muscle damage in epiphora patients,which may be the cause of functional epiphora.The etiology of neurogenic damage in the orbicularis oculi muscle requires further investigation.

关键词： Functional epiphora electromyography Orbicularis oculi muscle Neurological damage Etiology Treatment

Changes in sternocleidomastoid and descending portion of trapezius muscles in terms of electromyography and pressure pain threshold: women with chronic neck pain after acupuncture treatment

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Traditional Chinese Medicine 2020年第1期40卷 144-149页

作者： OdinêMaria Rêgo Bechara Marcelo Palinkas Paulo Batista de Vasconcelos Marisa Semprini Selma Siéssere Sandra Valéria Racan Simone Cecilio Hallak Regalo César Bataglion Department of Restorative Dentistry Ribeirao Preto School of DentistryUniversity of Sao PauloSao PauloCEP14040-904Brazil Department of Oral and Basic Biology Ribeirao Preto School of DentistryUniversity of Sao PauloSao PauloCEP14040-904Brazil Department of Nursing Anhanguera FacultyRibeirao PretoSao PauloCEP 14080-730Brazil Department of Medicine National Institute and Technology-Translational Medicine(INCT.TM)Ribeirao PretoSao PauloCEP14040-904Brazil

OBJECTIVE:To evaluate the sternocleidomastoid and the descending portion of the trapezius muscles in terms of electromyographic activity and pressure pain threshold in women with chronic cervical pain after acupuncture treatment.METHODS:Twenty-five women,aged 18-50 years[(31±3)years],with chronic neck and temporomandibular disorder participated in the study.The electromyographic activity of the sternocleidomastoid muscle and the descending portion of the trapezius muscle were recorded at rest,during shoulder elevation,(left and right)rotation of the neck and crucifix position.Maximum voluntary contraction was used to normalize the electromyographic activity data.The points used for acupuncture were Jiache(ST 6),Xiaguan(ST 7),Quanliao(SI 18),Tinggong(SI 19),Yifeng(TE-17),Fengchi(GB 20),Renzhong(GV 26),Yangbai(GB-14),and points of the lower and upper limbs:Tai chong(LV 3),Zusanli(ST 36),Sanyinjiao(SP 6),Kunlun(BL 60),He Gu(LI4)and Yanglingquan(GB 34).The treatment course was 10 sessions,30 min long per session,and twice a week.The final electromyographic activity and pressure pain threshold data collection were performed 15 d after treatment completion.RESULTS:The normalized electromyographic activity and pressure pain threshold data were tabulated and submitted to statistical analysis using t-test(P<0.05).Significant difference was observed during shoulder elevation for the left trapezius muscle,during neck rotation from the right side to the left,and pressure pain threshold for the trapezius and sternocleidomastoid muscles,bilaterally,after the acupuncture treatment.CONCLUSION:The acupuncture treatment improved the neck muscles in terms of electromyographic activity and increased the tolerance to chronic pain in women.

关键词： Acupuncture Chronic pain Neck muscles electromyography Pain threshold

Comparison of electromyography Responses in Spinal Cord Injury Patients Using an Operant Conditional Protocol Treatment

在线全文

学校读者我要写书评

暂无评论

Open Journal of Therapy and Rehabilitation 2022年第4期10卷 257-269页

作者： Christiane Pereira Cavalcante de Abreu Lucia Helena Storer Ribeiro Maria Eugenia Mayr de Biase Tarcisio Eloy de Pessoa Barros Filho Institute of Orthopedics and Traumatology Clinical Hospital School of Medicine University of S&atilde o Paulo S&atilde o Paulo Brazil

Background electromyography (EMG) biofeedback has been used in spinal cord injury rehabilitation, but optimal indication and treatment protocols still need to be identified. Objectives To use an operant conditioning learning paradigm to compare the EMG responses in subjects with spinal cord injury for optimal indication of EMG biofeedback treatment. Participants Thirty rehabilitation outpatients with incomplete cervical spinal cord injury. The subjects were divided into three groups based on their scores on the ASIA scale (ASIA B, ASIA C and ASIA D groups), with ten patients in each group. Methods Repeated-measure trials were conducted to compare patients’ EMG responses between pre-initial and post-biofeedback treatment. In the sessions, visual feedback of EMG activity of the triceps brachii muscle was provided to the patient in accordance with the treatment protocol. Results One-way ANOVA and the Kruskal-Wallis test were used to examine the differences in the measures between groups. The initial EMG and final EMG measures were not significantly different between the ASIA C and D groups, but these measures were different between the ASIA B group and the ASIA C and D groups. In the ASIA B group, the EMG responses started out lower than those in the other groups and varied less, especially in comparison to the ASIA C group. Conclusion: These results reveal that the patients classified as ASIA C and D achieved better responses of the operant conditional learning protocol and optimal indication for the biofeedback treatment.

关键词： Spinal Cord Injury Biofeedback electromyography Learning Neuroplasticity

Developing a Low-cost,smart,handheld electromyography biofeedback system for telerehabilitation with Clinical Evaluation

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Medicine in Novel Technology and Devices 2021年第2期10卷 17-24页

作者： Mazen M.Yassin Abubakr M.Saber Mohamed N.Saad Ashraf M.Said Ayman M.Khalifa Biomedical Engineering Department Minia UniversityMinia61111Egypt Department of Biomedical Engineering Helwan UniversityCairo11731Egypt J.Crayton Pruitt Family Department of Biomedical Engineering University of FloridaGainesvilleFL32611USA

Existing telerehabilitation systems require highly experienced personnel to interpret a patient’s muscle activity in a specialized lab,limiting the biofeedback available at the patient’s home.In addition,there is no contact between physiotherapists and patients remotely.This study designed and implemented an interactive teleelectromyography(EMG)biofeedback device for facilitating patients’rehabilitation and giving the physiotherapist the ability to develop and monitor personalized treatment for each patient precisely and remotely.The device comprised a device that acquires EMG signals during muscular activity and two cell phone applications,one for the patient and the other for the physiotherapist;traced muscle activity;and enabled the physiotherapist to monitor and control the patients’sessions through a Google Firebase database.EMG signals were acquired from five subjects,and results were compared to a certified device.The evaluation process involved two metrics,correlation coefficient and root mean square value(RMSV).The proposed EMG biofeedback device is an integrated solution with numerous features,such as low cost,handheld size,patient-friendly interface,contributions to rapid healing,and secure communication.In addition,it provides raw EMG signals for applied research applications.

关键词： electromyography EMG Biofeedback Physiotherapy Telerehabilitation Home use Rehabilitation