IEEE transactions on rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society最新文献_第8页

Analysis of arm trajectories of everyday tasks for the development of an upper-limb orthosis. 上肢矫形器发展的日常任务手臂轨迹分析。

IEEE transactions on rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society Pub Date : 2000-03-01 DOI: 10.1109/86.830950

R Ramanathan, S P Eberhardt, T Rahman, W Sample, R Seliktar, M Alexander

{"title":"Analysis of arm trajectories of everyday tasks for the development of an upper-limb orthosis.","authors":"R Ramanathan, S P Eberhardt, T Rahman, W Sample, R Seliktar, M Alexander","doi":"10.1109/86.830950","DOIUrl":"https://doi.org/10.1109/86.830950","url":null,"abstract":"Spatiotemporal arm and body movements of able-bodied subjects performing nine everyday tasks were recorded for the purpose of guiding the development of an upper-limb orthosis. To provide a user the opportunity to carry out these tasks with natural movements, the orthosis should allow replication of the measured trajectories. We outline the orthosis architecture, which supports the user's upper arm and forearm, and analyze the movement data to obtain orthosis design specifications. Trajectories were obtained using six-degree-of-freedom magnetic position sensors affixed to the wrist, elbow, shoulder, trunk and head. Elbow trajectory data were decomposed into ranges along the principle Cartesian axes to provide a generally useful envelope measure. The smallest Cartesian parallel-piped that contained the elbow trajectories for most tasks was approximately 30 cm front/back, 15 cm side/side, and 17 cm up/down. A rough lower bound estimate obtained by asking subjects to repeat the tasks while minimizing elbow movement substantially reduced movement in the up/down and side/side dimensions. Elbow angles were generally in the range 50 degrees-150 degrees, and the angle of the forearm with respect to vertical was 10 degrees-110 degrees. Raw trajectory data may be downloaded from www://asel.udel.edu/robotics/orthosis/range.h tml.","PeriodicalId":79442,"journal":{"name":"IEEE transactions on rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society","volume":"8 1","pages":"60-70"},"PeriodicalIF":0.0,"publicationDate":"2000-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1109/86.830950","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"21627773","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: 33

Selective activation of muscle groups in the feline hindlimb through electrical microstimulation of the ventral lumbo-sacral spinal cord. 通过电微刺激腹侧腰骶脊髓选择性激活猫后肢肌肉群。

IEEE transactions on rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society Pub Date : 2000-03-01 DOI: 10.1109/86.830944

V K Mushahwar, K W Horch

{"title":"Selective activation of muscle groups in the feline hindlimb through electrical microstimulation of the ventral lumbo-sacral spinal cord.","authors":"V K Mushahwar, K W Horch","doi":"10.1109/86.830944","DOIUrl":"https://doi.org/10.1109/86.830944","url":null,"abstract":"Selective activation of muscle groups in the feline hindlimb by electrical stimulation of the ventral lumbo-sacral spinal cord was investigated. Spinal cord segments L5 to S1 were mapped using a penetrating tungsten needle electrode. Locations that produced isolated contraction of quadriceps, tibialis anterior or triceps surae/plantaris muscles when stimulated with a current of 40 microA or less, and in which spread of activity to other muscles was not detected after increasing the stimulus to at least twice the threshold level, were defined as belonging to the target muscle's \"activation pool.\" The quadriceps activation pool was found to extend from the beginning of L5 to the middle of L6. The tibialis anterior activation pool extended from the beginning of L6 to the middle of L7, and the triceps surae/plantaris activation pool extended from the caudal end of L6 to the beginning of S1. The three activation pools were located in Rexed motor lamina IX and their spatial organization was found to correspond well with that of the anatomically defined motor pools innervating the same muscles. The spatial and functional segregation of motor pools manifested at the spinal cord level can have direct applications in the areas of functional electrical stimulation and motor control.","PeriodicalId":79442,"journal":{"name":"IEEE transactions on rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society","volume":"8 1","pages":"11-21"},"PeriodicalIF":0.0,"publicationDate":"2000-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1109/86.830944","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"21628502","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: 94

Characteristics of visual feedback in postural control during standing. 站立时姿势控制的视觉反馈特征。

IEEE transactions on rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society Pub Date : 1999-12-01 DOI: 10.1109/86.808946

Y Fukuoka, K Tanaka, A Ishida, H Minamitani

引用次数: 26

Adaptive one-switch row-column scanning. 自适应单开关行-列扫描。

IEEE transactions on rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society Pub Date : 1999-12-01 DOI: 10.1109/86.808950

R C Simpson, H H Koester

引用次数: 116

The new design of an infrared-controlled human-computer interface for the disabled. 新设计的红外线控制的残疾人人机界面。

IEEE transactions on rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society Pub Date : 1999-12-01 DOI: 10.1109/86.808951

Y L Chen, F T Tang, W H Chang, M K Wong, Y Y Shih, T S Kuo

{"title":"The new design of an infrared-controlled human-computer interface for the disabled.","authors":"Y L Chen, F T Tang, W H Chang, M K Wong, Y Y Shih, T S Kuo","doi":"10.1109/86.808951","DOIUrl":"https://doi.org/10.1109/86.808951","url":null,"abstract":"This paper reports on the development of an eyeglass- type infrared (IR)-controlled computer interface for the disabled. This system may serve to assist those who suffer from spinal cord injuries or other handicaps to operate a computer. This system is comprised of three major components: 1) an infrared transmitting module, 2) an infrared receiving/signal-processing module, and 3) a main controller, the Intel-8951 microprocessor. The infrared transmitting module utilizes tongue-touch circuitry which is converted to an infrared beam and a low power laser (<0.1 mW) beam. The infrared receiving/signal-processing module, receives the infrared beam and fine tunes the unstable infrared beam into standard pulses which are used as control signals. The main controller is responsible for detecting the input signals from the infrared receiving/signal-processing module and verifying these signals with the mapping table in its memory. After the signal is verified, it is released to control the keys of the computer keyboard and mouse interface. This design concept was mainly based on the idea that the use of an infrared remote module fastened to the eyeglasses could allow the convenient control of the input motion on the keys of a computer keyboard and mouse which are all modified with infrared receiving/signal-processing modules. The system is designed for individuals with spinal cord injuries and disabled in which the subjects' movement are severely restricted. The infrared transmitting module can be easily mounted on eyeglasses or artificial limbs.","PeriodicalId":79442,"journal":{"name":"IEEE transactions on rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society","volume":"7 4","pages":"474-81"},"PeriodicalIF":0.0,"publicationDate":"1999-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1109/86.808951","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"21468300","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: 132

Implanted functional electrical stimulation system for mobility in paraplegia: a follow-up case report. 植入功能性电刺激系统改善截瘫患者的活动能力:1例随访报告。

IEEE transactions on rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society Pub Date : 1999-12-01 DOI: 10.1109/86.808942

R Kobetic, R J Triolo, J P Uhlir, C Bieri, M Wibowo, G Polando, E B Marsolais, J A Davis, K A Ferguson

{"title":"Implanted functional electrical stimulation system for mobility in paraplegia: a follow-up case report.","authors":"R Kobetic, R J Triolo, J P Uhlir, C Bieri, M Wibowo, G Polando, E B Marsolais, J A Davis, K A Ferguson","doi":"10.1109/86.808942","DOIUrl":"https://doi.org/10.1109/86.808942","url":null,"abstract":"A 16-channel functional electrical stimulation (FES) system has been implanted in a person with T10 paraplegia for over a year. The system consists of two eight-channel radio frequency controlled receiver-stimulators delivering stimuli through a network of 14 epimysial and two intramuscular electrodes. Using this system and a walker for support, the subject was able to stand up for 8 min and walk regularly for 20 m. The standing duration was limited by arm fatigue since upper extremities supported an average of 25% of body weight. This was due to suboptimal hip extension and some undesired recruitment of rectus femoris and sartorius with stimulation of quadriceps electrodes. The left quadriceps exhibited rapid fatigue that limited walking distance and duration. The metabolic energy requirements were well within the aerobic limits of the sedentary paraplegic population. At one-year follow-up evaluation all electrodes are functional except one intramuscular electrode. The implant caused no adverse physiological effects and the individual reported health benefits such as increased energy and overall fitness as a result of the FES system use. With further improvements in muscle response through innovative surgical techniques, the 16-channel implanted FES system can be a viable addition to exercise and mobility function in persons with paraplegia.","PeriodicalId":79442,"journal":{"name":"IEEE transactions on rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society","volume":"7 4","pages":"390-8"},"PeriodicalIF":0.0,"publicationDate":"1999-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1109/86.808942","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"21465597","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: 160

Kinetics of stiff-legged gait: induced acceleration analysis. 硬腿步态动力学:诱导加速度分析。

IEEE transactions on rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society Pub Date : 1999-12-01 DOI: 10.1109/86.808945

P O Riley, D C Kerrigan

{"title":"Kinetics of stiff-legged gait: induced acceleration analysis.","authors":"P O Riley, D C Kerrigan","doi":"10.1109/86.808945","DOIUrl":"https://doi.org/10.1109/86.808945","url":null,"abstract":"Treating spastic paretic stiff-legged gait, defined as reduced knee flexion in swing, holds a high priority in the rehabilitation of patients with upper motor neuron lesions. We propose a method to determine the relative contributions of hip, knee, and ankle impairments to this disability. We analyzed the gait of ten patients with stiff-legged gait (SLG) due to a single stroke and ten healthy, able-bodied controls. Using subject specific models, we analyzed the induced accelerations (IA's) at the knee. Knee IA's throughout the gait cycle were calculated and the sum of the IA's was compared to the knee joint angular acceleration estimated from kinematic data. The preswing and early swing IA's were the focus of our examination as these largely determine knee kinematics in swing. Knee angular accelerations estimated from IA's and kinematic data agreed for both controls and patients. Gait cycle IA analysis of individual patients identified highly variable causes of SLG including ankle and hip joint impairments. Induced acceleration analysis (IAA) suggested that multiple impairments, not just about the knee, but also about the hip and ankle, lead to this disability. Individual subjects are likely to have individual reasons for their stiff-legged gait. Defining the link between the patients specific impairments and their gait disability should be a goal of clinical gait analysis. IAA is a useful tool for this purpose with a strong potential for clinical application.","PeriodicalId":79442,"journal":{"name":"IEEE transactions on rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society","volume":"7 4","pages":"420-6"},"PeriodicalIF":0.0,"publicationDate":"1999-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1109/86.808945","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"21468294","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: 59

A low-cost, portable system for the assessment of the postural response of wheelchair users to perturbations. 一种低成本、便携的系统，用于评估轮椅使用者对扰动的姿势反应。

IEEE transactions on rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society Pub Date : 1999-12-01 DOI: 10.1109/86.808947

D G Kamper, T C Adams, S I Reger, M Parnianpour, K Barin, M Linden

{"title":"A low-cost, portable system for the assessment of the postural response of wheelchair users to perturbations.","authors":"D G Kamper, T C Adams, S I Reger, M Parnianpour, K Barin, M Linden","doi":"10.1109/86.808947","DOIUrl":"https://doi.org/10.1109/86.808947","url":null,"abstract":"Maintaining seated postural stability presents a serious challenge to wheelchair users in vehicles, even during normal driving conditions. The purpose of this research was to develop a system for the study of seated postural control in response to perturbations similar to those that might be experienced during vehicle turning and braking. A servo-controlled tilt platform was constructed to provide a low-cost, small, and easily transportable device for generating precise and repeatable perturbations. Tilt platform operation was examined for accuracy and reproducibility of a desired perturbation. Repeatability was high with a mean signal-to-noise ratio (SNR) of 45.4 for a given perturbation measured across 11 subjects. An initial comparison of stability results obtained on the tilt platform and in a vehicle showed a correspondence, although differences were apparent. The tilt platform has been used successfully to assess balance in spinal cord-injured subjects and to test wheelchair securement systems.","PeriodicalId":79442,"journal":{"name":"IEEE transactions on rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society","volume":"7 4","pages":"435-42"},"PeriodicalIF":0.0,"publicationDate":"1999-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1109/86.808947","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"21468296","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: 9

The NavChair Assistive Wheelchair Navigation System. NavChair辅助轮椅导航系统。

IEEE transactions on rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society Pub Date : 1999-12-01 DOI: 10.1109/86.808948

S P Levine, D A Bell, L A Jaros, R C Simpson, Y Koren, J Borenstein

{"title":"The NavChair Assistive Wheelchair Navigation System.","authors":"S P Levine, D A Bell, L A Jaros, R C Simpson, Y Koren, J Borenstein","doi":"10.1109/86.808948","DOIUrl":"https://doi.org/10.1109/86.808948","url":null,"abstract":"The NavChair Assistive Wheelchair Navigation System [19] is being developed to reduce the cognitive and physical requirements of operating a power wheelchair for people with wide ranging impairments that limit their access to powered mobility. The NavChair is based on a commercial wheelchair system with the addition of a DOS-based computer system, ultrasonic sensors, and an interface module interposed between the joystick and power module of the wheelchair. The obstacle avoidance routines used by the NavChair in conjunction with the ultrasonic sensors are modifications of methods originally used in mobile robotics research. The NavChair currently employs three operating modes: general obstacle avoidance, door passage, and automatic wall following. Results from performance testing of these three operating modes demonstrate their functionality. In additional to advancing the technology of smart wheelchairs, the NavChair has application to the development and testing of \"shared control\" systems where a human and machine share control of a system and the machine can automatically adapt to human behaviors.","PeriodicalId":79442,"journal":{"name":"IEEE transactions on rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society","volume":"7 4","pages":"443-51"},"PeriodicalIF":0.0,"publicationDate":"1999-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1109/86.808948","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"21468297","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: 455

Automatic adaptation in the NavChair Assistive Wheelchair Navigation System. 在NavChair辅助轮椅导航系统中的自动适应。

IEEE transactions on rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society Pub Date : 1999-12-01 DOI: 10.1109/86.808949

R C Simpson, S P Levine

引用次数: 75