2014 IEEE 19th International Functional Electrical Stimulation Society Annual Conference (IFESS)最新文献_第3页

Multiclass self-paced motor imagery temporal features classification using least-square support vector machine 基于最小二乘支持向量机的多类自定步运动图像时间特征分类

2014 IEEE 19th International Functional Electrical Stimulation Society Annual Conference (IFESS) Pub Date : 2014-09-01 DOI: 10.1109/IFESS.2014.7036749

M. Hamedi, S. Salleh, C. Ting, A. M. Noor, I. Rezazadeh

{"title":"Multiclass self-paced motor imagery temporal features classification using least-square support vector machine","authors":"M. Hamedi, S. Salleh, C. Ting, A. M. Noor, I. Rezazadeh","doi":"10.1109/IFESS.2014.7036749","DOIUrl":"https://doi.org/10.1109/IFESS.2014.7036749","url":null,"abstract":"Mental tasks classification such as motor imagery based on EEG signals is a challenging issue in brain-computer interface (BCI) systems. Automatic classifier tuning seems to be an essential component in real-time BCI systems which makes the interface more reliable and easy to use and may offer the optimum configuration of classifier. This paper investigates the robustness of Least-Square Support Vector Machine (LS-SVM) to classify multi-class self-paced motor imagery (MI) temporal features while tuning the hyperparameters automatically. MI electroencephalogram (EEG) signals were preprocessed and segmented into non-overlapped distinctive time slots. Five different temporal features were extracted to characterize various properties of three Mis. An extended version of LS-SVM was employed for feature classification while the kernel model parameters were tuned by means of two optimization techniques, Coupled Simulated Annealing (CSA) followed by Simplex. LS-SVM parameters were evaluated and selected through leave-one-out cross validation (LOOCV) cost function. Finally, the proposed method was evaluated and compared to three widely used classifiers. The results indicated the high potential of LS-SVM to classify different Mis by obtaining the average classification accuracy 89.88±8.00 when using Sign Slop Changes (SSC) features. However, this LS-SVM performed slowly due to its additional steps for automatic model parameter tuning. In the comparative study, it was shown that each classifier behaved differently when various features were served; however, KNN outperformed others in both terms of classification accuracy and speed.","PeriodicalId":268238,"journal":{"name":"2014 IEEE 19th International Functional Electrical Stimulation Society Annual Conference (IFESS)","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134603757","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Assessment of muscle performance using vibromyography (VMG) and electromyography(EMG) 用肌振图(VMG)和肌电图(EMG)评价肌肉性能

2014 IEEE 19th International Functional Electrical Stimulation Society Annual Conference (IFESS) Pub Date : 2014-09-01 DOI: 10.1109/IFESS.2014.7036762

Yasotha Padmanathan, Maryam Pourmajidian, Hasliza Yusoff, A. Wahab, N. Hasnan, N. A. Hamzaid, G. Davis

{"title":"Assessment of muscle performance using vibromyography (VMG) and electromyography(EMG)","authors":"Yasotha Padmanathan, Maryam Pourmajidian, Hasliza Yusoff, A. Wahab, N. Hasnan, N. A. Hamzaid, G. Davis","doi":"10.1109/IFESS.2014.7036762","DOIUrl":"https://doi.org/10.1109/IFESS.2014.7036762","url":null,"abstract":"The present work shows a preliminary study conducted using Vibromyography (VMG) sensor and Electromyography (EMG) sensor with the help of Biodex system on evaluating muscle performances. Surface EMG and Biodex torque are set as reference signal to be compared with VMG signal obtained from the experiment. A total of 5 healthy subjects performed isokinetic knee extension exercise at the speed of 90 deg·s-1 and 120 deg·s-1 supported by biodex dynamometer. Preliminary statistical analysis to find the correlation between the reference signals is calculated. An acceptable high correlation values was obtained for both speeds where Biodex-VMG shows (r=0.80 and r=0.81), Biodex-EMG shows (r=0.89 and r=0.88) and VMG-EMG shows(r=0.78 and r=0.77) for speed 90 deg·s-1 and 120 deg·s-1 respectively. A slightly higher correlation was achieved between biodex and VMG suggesting the high potential of the sensor for mechanical evaluations. However further analysis considering various conditions is needed in order to prove the reliability of VMG as a sensor to measure force related parameter in muscle evaluation.","PeriodicalId":268238,"journal":{"name":"2014 IEEE 19th International Functional Electrical Stimulation Society Annual Conference (IFESS)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116339191","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Post contraction hyperemia after electrical stimulation comparison with able-bodied persons and persons with upper extremity paralysis 电刺激后收缩充血与健全者及上肢瘫痪者比较

2014 IEEE 19th International Functional Electrical Stimulation Society Annual Conference (IFESS) Pub Date : 2014-09-01 DOI: 10.1109/IFESS.2014.7036746

Nobusuke Shibata

{"title":"Post contraction hyperemia after electrical stimulation comparison with able-bodied persons and persons with upper extremity paralysis","authors":"Nobusuke Shibata","doi":"10.1109/IFESS.2014.7036746","DOIUrl":"https://doi.org/10.1109/IFESS.2014.7036746","url":null,"abstract":"Purpose: The purpose of this study was to compare post contraction hyperemia after electrical stimulation with persons with upper extremity paralysis caused by upper motor neuron disease with able-bodied persons. Methods: Thirteen able-bodied persons and eleven individuals who had upper extremity paralysis caused by upper neuron disease were enrolled in the study. The blood flow of basilic vein was measured by ultra sound system before the electrical stimulation and 30 seconds after the stimulation. Electrical stimulation was done to the biceps brachii muscle. The strength was 10mA, frequency was 70Hz, stimulation time was 20 seconds. The Dynamid electro stimulation system was used for the electro stimulation and the TOSHIBA Xario ultrasound system was used for evaluating the blood flow. Results: The mean blood flow of the able-bodied group and paralysis group before the electrical stimulation was 60 ± 20 ml/min (Mean ± SD) and 48 ± 25ml/min. After the electrical stimulation, both increased to 117 ± 23 ml/min and 81 ± 41 ml/min. Conclusion: It was possible to measure the post contraction hyperemia by ultra sound system. Both blood flow of able-bodied persons and persons with upper extremity paralysis increased after the electrical stimulation due to post contraction hyperemia.","PeriodicalId":268238,"journal":{"name":"2014 IEEE 19th International Functional Electrical Stimulation Society Annual Conference (IFESS)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124312539","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Robust gender classification using neural responses from the model of the auditory system 利用听觉系统模型的神经反应进行稳健的性别分类

2014 IEEE 19th International Functional Electrical Stimulation Society Annual Conference (IFESS) Pub Date : 2014-09-01 DOI: 10.1109/IFESS.2014.7036748

Nursadul Mamun, Wissam A. Jassim, M. S. Zilany

引用次数: 4

The effects of foot position on erector spinae and gluteus maximus muscle activation during sit-to-stand in persons with stroke 中风患者坐立时足部位置对竖脊肌和臀大肌激活的影响

2014 IEEE 19th International Functional Electrical Stimulation Society Annual Conference (IFESS) Pub Date : 2014-09-01 DOI: 10.1109/IFESS.2014.7036732

I. Nam, M. Lee, Y. Kim, J. Shin, Y. Lee, Y. Chung

{"title":"The effects of foot position on erector spinae and gluteus maximus muscle activation during sit-to-stand in persons with stroke","authors":"I. Nam, M. Lee, Y. Kim, J. Shin, Y. Lee, Y. Chung","doi":"10.1109/IFESS.2014.7036732","DOIUrl":"https://doi.org/10.1109/IFESS.2014.7036732","url":null,"abstract":"The purpose of this study was to investigate the effects of different foot positioning on bilateral erector spinae (ES) and gluteus maximaus (GM) activation during sit-to-stand in stroke patients using surface electromyography(EMG). Fifteen randomly selected stroke patients participated and were required to perform sit-to-stand (STS) with three different strategies as follows: 1) symmetric foot position, 2) unaffected foot placed behind the affected foot position (asymmetric-1), 3) affected foot placed behind the unaffected foot position (asymmetric-2). The EMG system was used to measure erector spinae and gluteus maximus muscle activation. All conditions were conducted randomly and the mean values were obtained from muscle activity being measured 5 times. One-way repeated measure ANOVA was used to determine statistical significance of differences between each conditions. According to the results, the affected erector spine muscle activation was significantly greater with asymmetric-2 compared to symmetrical foot placement (p<;0.05). In addition, the affected ES, nonaffected ES, and affected gluteus maxims muscle activation was significantly greater with asymmetric-2 compared to asymmetric-1 (p<;0.05). Our results suggest that it may be more effective for patients with stroke to place the affected foot behind the unaffected foot when performing STS to increase erector spinae and affected gluteus muscle activation and to include as part of a valuable clinical intervention.","PeriodicalId":268238,"journal":{"name":"2014 IEEE 19th International Functional Electrical Stimulation Society Annual Conference (IFESS)","volume":"227 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115169689","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Identify key grasping-related properties based on cutaneous electrotactile stimulation 基于皮肤触觉电刺激识别抓取相关的关键特性

2014 IEEE 19th International Functional Electrical Stimulation Society Annual Conference (IFESS) Pub Date : 2014-09-01 DOI: 10.1109/IFESS.2014.7036757

Heng Xu, Linjun Bao, Dingguo Zhang, Xiangyang Zhu

引用次数: 5

Positioning of EEG electrodes for BCI-FES control system development of knee joint movement for paraplegic 脑电电极定位用于截瘫膝关节运动BCI-FES控制系统的开发

2014 IEEE 19th International Functional Electrical Stimulation Society Annual Conference (IFESS) Pub Date : 2014-09-01 DOI: 10.1109/IFESS.2014.7036767

K. Rahman, B. S. K. Ibrahim, M. M. Jamil, N. Nasir, F. Sherwani, M. Ahmad, A. Masdar

{"title":"Positioning of EEG electrodes for BCI-FES control system development of knee joint movement for paraplegic","authors":"K. Rahman, B. S. K. Ibrahim, M. M. Jamil, N. Nasir, F. Sherwani, M. Ahmad, A. Masdar","doi":"10.1109/IFESS.2014.7036767","DOIUrl":"https://doi.org/10.1109/IFESS.2014.7036767","url":null,"abstract":"Functional Electrical Stimulation (FES) is a promising method to restore mobility to individuals paralyzed due to spinal cord injury (SCI). This method will provide the electrical pulse to the surface electrodes which are attached to paralyze part such as arm or leg and will make this part constructs because of the pulse given and can achieve the desired movement later. Depend on only FES for a rehabilitation method to SCI patient is not a very effective way. The combination between FES and Brain Computer Interface (BCI) may prove useful and effective way in SCI rehabilitation. BCI is a technology that detects a patient's intention. The main target of BCI is to create an alternative way for SCI patients between brain and others partfrom their body. This BCI will record the signal from the brain and then will transfer it to paralyze part which wants to control it. There are many methods to obtain the brain signals in BCI such as electroencephalographic (EEG) measurement technique or brain mapping technique. The EEG measurement technique is mostly used in medical rehabilitation and this technique is using EEG scalp and electrodes. The position of EEG electrodes should be correctly placed according to the appropriate movement. This paper will be discussed on the positioning of EEG electrodes for BCI-FES control system development of knee joint movement for paraplegics.","PeriodicalId":268238,"journal":{"name":"2014 IEEE 19th International Functional Electrical Stimulation Society Annual Conference (IFESS)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132207628","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Electrical stimulation of acupuncture points in treatment of sleep disorders 穴位电刺激治疗睡眠障碍

2014 IEEE 19th International Functional Electrical Stimulation Society Annual Conference (IFESS) Pub Date : 2014-09-01 DOI: 10.1109/IFESS.2014.7036735

M. Bijak, M. Bijak

{"title":"Electrical stimulation of acupuncture points in treatment of sleep disorders","authors":"M. Bijak, M. Bijak","doi":"10.1109/IFESS.2014.7036735","DOIUrl":"https://doi.org/10.1109/IFESS.2014.7036735","url":null,"abstract":"Insomnia is a frequent complaint in primary medical care. Many drugs are available to treat sleep disorders. Sleeping pills show a lot of side effects such as daytime dizziness and lack of concentration. There are some studies about treatment of insomnia without drugs, for example using acupuncture or electroacupuncture. In an outpatient service in Vienna, Austria, patients with functional disorders or different pain diagnosis are treated with acupuncture over 20 years. Patients are requested to fill in a questionnaire concerning the intensity of pain, psychic discomfort and quality of sleep prior to treatment and at the end of treatment. To investigate if acupuncture or electroacupuncture is helping to improving sleep disorders, a retrospective study was carried out. 62% of the patients treated for pain syndromes show also a disturbance of sleep. After the end of treatment, half of them improved not only in pain intensity, but also in the quality of sleep. To show the influence of electroacupuncture for primary insomnia a randomized controlled pilot trial with 12 patients was done. Improvement of daytime vigilance could be shown after the first treatment and staying on for 10 weeks with one treatment per week.","PeriodicalId":268238,"journal":{"name":"2014 IEEE 19th International Functional Electrical Stimulation Society Annual Conference (IFESS)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127736591","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A test of controlling different muscles in FES cycling with cycling wheelchair "Profhand" 骑行轮椅“Profhand”对FES骑行中不同肌肉的控制试验

2014 IEEE 19th International Functional Electrical Stimulation Society Annual Conference (IFESS) Pub Date : 2014-09-01 DOI: 10.1109/IFESS.2014.7036742

Takashi Watanabe, Yuta Karasawa, Y. Handa

{"title":"A test of controlling different muscles in FES cycling with cycling wheelchair \"Profhand\"","authors":"Takashi Watanabe, Yuta Karasawa, Y. Handa","doi":"10.1109/IFESS.2014.7036742","DOIUrl":"https://doi.org/10.1109/IFESS.2014.7036742","url":null,"abstract":"The cycling wheelchair \"Profhand\" developed by our research group in Japan has been found to be useful in rehabilitation of motor function of lower limbs. The cycling wheelchair can also be applied to rehabilitation of paraplegic subjects by controlling lower limbs with FES. In this paper, FES control without stimulation to the gluteus maximus and that with stimulation to the tibialis anterior were tested for FES cycling with Profhand with healthy subjects, because cycling speed was low and not stable in our previous study and there was a difficulty in setting stimulation electrodes to the gluteus maximus. Stimulation to the quadriceps femoris, the gluteus maximus and the tibialis anterior showed the highest cycling speed. FES control without stimulation to the gluteus maximus was also possible to propel Profhand. Since effective muscle was different between individuals, it is preferable to select muscle group based on the patient's condition. Although stimulation to the tibialis anterior could be useful, it is necessary to study appropriate stimulation timing of each muscle.","PeriodicalId":268238,"journal":{"name":"2014 IEEE 19th International Functional Electrical Stimulation Society Annual Conference (IFESS)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125148656","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

Cardiorespiratory metabolism during voluntary and electrical stimulation cycling in persons with advanced multiple sclerosis 晚期多发性硬化症患者自主和电刺激循环期间的心肺代谢

2014 IEEE 19th International Functional Electrical Stimulation Society Annual Conference (IFESS) Pub Date : 2014-09-01 DOI: 10.1109/IFESS.2014.7036734

C. Fornusek, N. Ektas, N. Hasnan

{"title":"Cardiorespiratory metabolism during voluntary and electrical stimulation cycling in persons with advanced multiple sclerosis","authors":"C. Fornusek, N. Ektas, N. Hasnan","doi":"10.1109/IFESS.2014.7036734","DOIUrl":"https://doi.org/10.1109/IFESS.2014.7036734","url":null,"abstract":"Objective: To determine the relative benefit of electrical stimulation (ES) and voluntary cycling exercise for persons with moderate to severe multiple sclerosis (MS). Design: Case series. Setting: Laboratory/Disabled gymnasium. Participants: 5 females with moderate to severe multiple sclerosis who were experienced with neuromuscular electrical stimulation cycling exercise. Interventions: each participant completed 3 different trials on a stationary cycle ergometer. The first trial involved 2 periods (10-min) of voluntary exercise [VOL], the second 35-min of ES cycling exercise [ES], and the third was a combination of VOL and ES [ES+VOL]. Each trial was performed on a different day. Outcome Measures: Cardiorespiratory variables (VO2, VCO2, RQ, Vt, & Br/min), cycling power output, and heart rate [HR] were measured during each session. Participants were also asked to rate each exercise trial in terms of pain (0-10) and post-exercise tiredness (0-10). Results: On average ES+VOL elicited greater acute increases in aerobic metabolic but there was no statistically detectable difference between the 3 trials except for VCO2. Conclusions: The application of ES may assist persons with severe MS to perform aerobic exercise. Further investigation is needed.","PeriodicalId":268238,"journal":{"name":"2014 IEEE 19th International Functional Electrical Stimulation Society Annual Conference (IFESS)","volume":"308 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123059311","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2