{"title":"Reach & grasp therapy: Effects of the Gentle/G System assessing sub-acute stroke whole-arm rehabilitation","authors":"R. Loureiro, Bob Lamperd, C. Collin, W. Harwin","doi":"10.1109/ICORR.2009.5209509","DOIUrl":"https://doi.org/10.1109/ICORR.2009.5209509","url":null,"abstract":"This paper reports preliminary results of a reach and grasp study of robot mediated neurorehabilitation. These results are presented on a case-by-case basis and give a good indication of a positive effect of robot mediated therapy. The study investigated both reach and grasp assistance and although it is not possible to attribute the response to the benefits of providing assistance of both modalities the study is a good indicator that this strategy should be pursued. The paper also reports on the benefits of motivational queues such as exercise scores and on subject attitudes to the robot mediated therapy.","PeriodicalId":189213,"journal":{"name":"2009 IEEE International Conference on Rehabilitation Robotics","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121978917","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}
{"title":"Adaptive control of an end-effector based electromechanical gait rehabilitation device","authors":"S. Hussein, H. Schmidt, J. Kruger","doi":"10.1109/ICORR.2009.5209485","DOIUrl":"https://doi.org/10.1109/ICORR.2009.5209485","url":null,"abstract":"In industrialized countries stroke is the major cause for physical disabilities in adults. In various clinical studies gait therapy with the help of the electromechanical Gait Trainer GT-I proved to enhance the rehabilitation outcome for subacute stroke patients. This paper presents control methods that were developed to enable variability during treatment in order to further improve gait therapy with this class of devices. The algorithms suitable for the Gait Trainer GT-I are analyzed in a simulation study. Therefore models which simulate the practicing subjects' behaviour were developed. A purely mechanical mass-damper system models the passive subjects behaviour while motor learning models were adopted to simulate patient adaptation different types of footplate guidance characteristics. Several adaptive approaches have been developed for other rehabilitation devices in the past. In this work two controllers were developed and evaluated. The first features a one dimensional control window along the footplate trajectory within which the patient is only slightly guided. Outside the window a force field draws the subject back to the window. The second algorithm extends the window controller with a human motor learning strategy for to adapt the window size and thereby the assistance provided to the subjects. They were tested in a simulation study with different human behaviour models, the results are presented in this paper.","PeriodicalId":189213,"journal":{"name":"2009 IEEE International Conference on Rehabilitation Robotics","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123946366","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}
{"title":"Design, simulation and testing of a new modular wheelchair mounted robotic arm to perform activities of daily living","authors":"P. Schrock, F. Farelo, Redwan Alqasemi, R. Dubey","doi":"10.1109/ICORR.2009.5209469","DOIUrl":"https://doi.org/10.1109/ICORR.2009.5209469","url":null,"abstract":"A new and light wheelchair-mounted robotic arm (WMRA-II) was designed and built to meet the needs of mobility-impaired persons with limitations of upper extremities, and to exceed the capabilities of current devices of this type. The structure of the new robotic arm utilizes carbon-fiber and polycarbonate tubes to reduce the arm weight. The mechanical design incorporates DC servo drive, with actuator hardware at each individual joint, allowing reconfigurable link lengths. It has seven degrees of freedom and uses a side mount on a power wheelchair. A single control board that is capable of controlling eight motors was used for coordinated Cartesian control of the robotic arm. This paper discusses the current state of the art in WMRAs; describes the design goals and user requirements for this device; explains the component selection process; discusses details of the mechanical design and the controller design; and describes the testing of the completed arm. Further improvements are also suggested.","PeriodicalId":189213,"journal":{"name":"2009 IEEE International Conference on Rehabilitation Robotics","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125032161","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}
{"title":"Human forearm motion discrimination based on myoelectric signal by fuzzy inference","authors":"A. Kiso, H. Seki","doi":"10.1109/ICORR.2009.5209587","DOIUrl":"https://doi.org/10.1109/ICORR.2009.5209587","url":null,"abstract":"This paper describes a human forearm motion discrimination method based on the myoelectric signal by the fuzzy inference. In the conventional studies, the neural network is often used to estimate motion intention by the myoelectric signal and realizes the high discrimination precision. On the other hand, this study uses the fuzzy inference for a human forearm motion discrimination based on the myoelectric signal. This study designs the membership function and the fuzzy rules from the average value and the standard deviation of the root mean square of the myoelectric potential for every channel of each motion. Some experiments on the myoelectric hand simulator show the effectiveness of the proposed motion discrimination method.","PeriodicalId":189213,"journal":{"name":"2009 IEEE International Conference on Rehabilitation Robotics","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125062858","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}
C. Freeman, A. Hughes, J. Burridge, P. Chappell, P. Lewin, E. Rogers
{"title":"Design & control of an upper arm fes workstation for rehabilitation","authors":"C. Freeman, A. Hughes, J. Burridge, P. Chappell, P. Lewin, E. Rogers","doi":"10.1109/ICORR.2009.5209614","DOIUrl":"https://doi.org/10.1109/ICORR.2009.5209614","url":null,"abstract":"An overview is provided of the design, operation and performance of an experimental test facility that has been developed for stroke rehabilitation. The aim of the system is to improve sensory-motor function of the impaired upper limb, and it has recently been used in clinical trials with stroke participants. During treatment subjects were seated at the workstation and their impaired arm strapped to the robotic end-effector. Their task was to follow elliptical trajectories that were projected onto a target above their arm, using voluntary control with the addition of electrical stimulation mediated by advanced control schemes. The design of the experimental system is first summarised, and then details are presented of the modelling, identification and control techniques used by the workstation over the course of treatment.","PeriodicalId":189213,"journal":{"name":"2009 IEEE International Conference on Rehabilitation Robotics","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129436892","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}
{"title":"Development of an isokinetic FES leg stepping trainer (iFES-LST) for individuals with neurological disability","authors":"N. A. Hamzaid, C. Fornusek, A. Ruys, G. Davis","doi":"10.1109/ICORR.2009.5209568","DOIUrl":"https://doi.org/10.1109/ICORR.2009.5209568","url":null,"abstract":"An exercise device, employing functional electrical stimulation (FES) of leg muscles and a seated elliptical stepping mechanism, was developed for people with neurological disabilities. A feedback motor control system was developed to maintain constant (“isokinetic”) pedalling cadence, and the device could both assist legs with poor muscle power as well as resist a stronger stepping effort. FES was employed to recruit particular leg muscle groups in a pattern that resembled voluntary elliptical stepping. To switch the electrical stimulation on and off, the pedal crank's angular position was used to identify the foot's instantaneous position throughout the movement path. Thus, key lower limb muscles (quadriceps, hamstrings, gluteals) could be exercised in this population with muscle weakness or paralysis. Stepping cadence, stimulation current level and each muscle group's stimulation angle could be modified ad-hoc, while the power output responses were monitored to fine tune the quality of leg exercise.","PeriodicalId":189213,"journal":{"name":"2009 IEEE International Conference on Rehabilitation Robotics","volume":"94 32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129085537","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}
S. Kemna, P. Culmer, A. Jackson, S. Makower, J. Gallagher, R. Holt, F. Cnossen, J. Cozens, M. Levesley, B. Bhakta
{"title":"Developing a user interface for the iPAM stroke rehabilitation system","authors":"S. Kemna, P. Culmer, A. Jackson, S. Makower, J. Gallagher, R. Holt, F. Cnossen, J. Cozens, M. Levesley, B. Bhakta","doi":"10.1109/ICORR.2009.5209507","DOIUrl":"https://doi.org/10.1109/ICORR.2009.5209507","url":null,"abstract":"The increasing population of older people is leading to growing healthcare demands. Stroke is the commonest cause of severe disability in developed countries leaving one third of patients with long term disability. Rehabilitation is the cornerstone of recovery. Lack of rehabilitation manpower resources can limit recovery of limb function. However, technology can assist rehabilitation staff to deliver greater intensity of treatment. Robotic systems such as the iPAM robot can provide semi-automated arm exercises for people with complex impairments leading to loss of functional arm movement. Feedback to the patient about their performance, usability of the exercise “workspace” and motivating exercises are key aspects of the successful deployment of robotic systems within routine clinical use. We describe the development of the patient interface for the iPAM robotic system. Central to this development is user involvement (with rehabilitation professionals and people with stroke). Using user centred design methods which included use of questionnaires and one to one discussions, the user interface was changed from a simple screen showing a stick figure of the arm to a 3D scene with simplified indicators and feedback screens, providing feedback about performance and feedback about the quality of the movement. Patients were positive about the changes to the user interface, confirming that the feedback screens were clear, useful and motivating. The user interface can further be improved by adding more feedback about the quality of the movement.","PeriodicalId":189213,"journal":{"name":"2009 IEEE International Conference on Rehabilitation Robotics","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130456582","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}
S. Mazzoleni, G. Stampacchia, E. Cattin, E. Bradaschia, M. Tolaini, Bruno Rossi, M. Carrozza
{"title":"Effects of a robot-mediated locomotor training on EMG activation in healthy and SCI subjects","authors":"S. Mazzoleni, G. Stampacchia, E. Cattin, E. Bradaschia, M. Tolaini, Bruno Rossi, M. Carrozza","doi":"10.1109/ICORR.2009.5209581","DOIUrl":"https://doi.org/10.1109/ICORR.2009.5209581","url":null,"abstract":"The robot-mediated locomotor training in paraplegic subjects was recently introduced for gait recovery. The objectives of the present work were 1) to study the changes in the muscular recruitment after locomotion rehabilitation using a robotic system in SCI subjects and 2) to compare muscular recruitment in two different conditions of subject-robot cooperation.","PeriodicalId":189213,"journal":{"name":"2009 IEEE International Conference on Rehabilitation Robotics","volume":"208 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122583906","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}
M. Guidali, M. Schmiedeskamp, V. Klamroth, R. Riener
{"title":"Assessment and training of synergies with an arm rehabilitation robot","authors":"M. Guidali, M. Schmiedeskamp, V. Klamroth, R. Riener","doi":"10.1109/ICORR.2009.5209516","DOIUrl":"https://doi.org/10.1109/ICORR.2009.5209516","url":null,"abstract":"Patients with moderate to severe hemiparesis following stroke often show abnormal muscle coactivation and a loss of interjoint coordination in the hemiparetic limb. These abnormal stereotypic movement patterns are known in clinical rehabilitation as abnormal secondary torques or synergies. In the beginning of a rehabilitation process the patients often train inside those synergistic patterns, what helps to restore some functionality, but makes it more difficult to break out of them later. Preliminary tests in our lab showed, that there is no precise test to characterize short term alteration in abnormal coupling between different joints. Therefore, a new assessment tool has been developed and implemented on the arm rehabilitation robot ARMin. A special synergy training program has been assembled and evaluated with one patient. The new assessment method showed to be appropriate for a qualitative measurement of abnormal couplings. After training, the patient's dominant synergy pattern were reduced.","PeriodicalId":189213,"journal":{"name":"2009 IEEE International Conference on Rehabilitation Robotics","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116259462","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}
M. Haraguchi, T. Kikuchi, M. Mihara, M. Hatakenaka, I. Miyai, J. Furusho
{"title":"Development of evaluation system of the motor function for upper limbs using 3-D rehabilitation robot “EMUL” and near-infrared spectroscopy “NIRS”","authors":"M. Haraguchi, T. Kikuchi, M. Mihara, M. Hatakenaka, I. Miyai, J. Furusho","doi":"10.1109/ICORR.2009.5209515","DOIUrl":"https://doi.org/10.1109/ICORR.2009.5209515","url":null,"abstract":"Rehabilitation for upper limbs is important for the elderly people, the stroked patients and so on. In recent years, the needs for rehabilitation support systems are increasing, which use robot technology, virtual reality technology and neuroscience. In this paper we present about a development of evaluation system of the motor function for upper limbs using 3-D rehabilitation Robot “EMUL” and brain function imaging method “NIRS”.","PeriodicalId":189213,"journal":{"name":"2009 IEEE International Conference on Rehabilitation Robotics","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121045782","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}