{"title":"Reliability of Implantable MyoElectric Sensors (IMES)","authors":"J. F. Schorsch, R. Weir","doi":"10.1109/ICVR.2008.4625138","DOIUrl":"https://doi.org/10.1109/ICVR.2008.4625138","url":null,"abstract":"We have developed a multi-channel electrogmyography sensor system capable of receiving and processing signals from up to thirty-two Implanted MyoElectric Sensors (IMES). The appeal of implanted sensors for myoelectric control is that EMG signals can be measured at their source providing relatively cross-talk free signals that can be treated as independent control sites. An external telemetry controller receives telemetry sent over a transcutaneous magnetic link by the implanted electrodes. The same link provides power and commands to the implanted electrodes. Wireless telemetry of EMG signals from sensors implanted in the residual musculature eliminates the problems associated with percutaneous wires such as infection, breakage and marsupialization. Implants are designed for permanent long-term implantation with no servicing requirements. We have a fully operational system. The system has been tested in animals. Implants have been chronically implanted in the legs of 3 cats and are still completely operational 12 months after implantation. The recordings are stable and reliable over the chronic recording period.","PeriodicalId":260355,"journal":{"name":"2008 Virtual Rehabilitation","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133582442","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}
L. Dovat, O. Lambercy, R. Gassert, E. Burdet, T. C. Leong
{"title":"HandCARE2: A novel cable interface for hand rehabilitation","authors":"L. Dovat, O. Lambercy, R. Gassert, E. Burdet, T. C. Leong","doi":"10.1109/ICVR.2008.4625127","DOIUrl":"https://doi.org/10.1109/ICVR.2008.4625127","url":null,"abstract":"We have developed a novel robotic interface to train hand and finger function. HandCARE2 is a Cable-Actuated REhabilitation (CARE) system, in which each finger is free to move in space with a large range of movement, from a closed hand to full extension. The device, designed based on biomechanical measurements, can assist the subject in opening and closing movements of the hand and can be adapted to accommodate various hand shapes and finger sizes. The system uses a cable-spring transmission and a clutch system, which allow movement combinations of the five fingers with only two actuators. The device is safe, cost effective and offers multiple possibilities to train finger independence and coordination, with various grasps.","PeriodicalId":260355,"journal":{"name":"2008 Virtual Rehabilitation","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129149268","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":"Arm and trunk kinematic features during reaching in virtual and real world environments","authors":"D. Liebermann, S. Berman, M. Levin, P. Weiss","doi":"10.1109/ICVR.2008.4625136","DOIUrl":"https://doi.org/10.1109/ICVR.2008.4625136","url":null,"abstract":"In this study we characterized patterns of arm and trunk movement during hand reaching in two environments: virtual and physical. In the virtual environment, subjects used less trunk displacement, had jerkier and larger hand paths, and used more arm torsion around the shoulder-hand distal vector. In conclusion, virtual and physical environments do not generate identical motor performances. Differences in reaching patterns may be attributed to the lack of depth perception in the 2D virtual environment.","PeriodicalId":260355,"journal":{"name":"2008 Virtual Rehabilitation","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129505225","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":"Arm pointing movements in a three dimensional virtual environment: Effect of two different viewing media","authors":"Sandeep K Subramanian, C. Beaudoin, M. Levin","doi":"10.1109/ICVR.2008.4625157","DOIUrl":"https://doi.org/10.1109/ICVR.2008.4625157","url":null,"abstract":"Virtual reality (VR) is being used increasingly in many fields of medicine, including rehabilitation. Both 2D and 3D virtual environments (VEs) can be viewed either through a head mounted display (HMD) or on a screen (computer monitor and rear projection system, SPS). However, the question of whether the medium through which the environment is viewed affects motor performance has not been addressed. The objective of our study was to determine whether movement patterns were different when movements were performed in a 3D fully immersive VE viewed via an HMD or SPS. Two groups of subjects were recruited (stroke, healthy). They performed pointing movements to targets placed in the ipsilateral, central and contralateral arm workspaces in a VE. The VE, designed to resemble the interior of an elevator, was viewed via an HMD or a SPS. Arm motor impairment and spasticity were evaluated in both groups of subjects. The kinematics of the pointing movements were recorded using an optical tracking system (Optotrak Certus, 100 Hz, 6 markers). Arm motor performance (speed, precision and trajectory straightness) and movement quality outcomes (elbow and shoulder ranges of motion and trunk forward displacement) were analyzed using 2 way ANOVAs. Preliminary results suggest that the control group had straighter movements and used more shoulder flexion as compared to the stroke group. When the VE was viewed via both media, there were no differences in terms of endpoint precision and speed, elbow and shoulder ranges of motion and trunk forward displacement in both groups. Both groups reported that they completely enjoyed performing the movements when viewing them via both media. All subjects in the control group and 80% of subjects in the stroke group reported that VE was engaging, that it felt real and that the movements performed were similar to those made in the physical world. The results of this study have implications for the design of rehabilitation applications using VR aimed at improving arm motor activity and function.","PeriodicalId":260355,"journal":{"name":"2008 Virtual Rehabilitation","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121681139","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}
D. Labonte, F. Michaud, R. Cloutier, Marc-André Roux, D. Létourneau, M. Lauria, P. Boissy
{"title":"Telerehabilitation via a mobile robot","authors":"D. Labonte, F. Michaud, R. Cloutier, Marc-André Roux, D. Létourneau, M. Lauria, P. Boissy","doi":"10.1109/ICVR.2008.4625125","DOIUrl":"https://doi.org/10.1109/ICVR.2008.4625125","url":null,"abstract":"Teleoperated from a distant location, a mobile robot with some autonomous capabilities can become a beneficial tool in telerehabilitation applications. Safety being of prime concern in such settings, we took special care in coming up with the proper teleoperation interfaces that can provide pertinent information about the system states and conditions (objects, persons, free space, data, etc.) in conjunction with an efficient control system. In order to enhancement operatorpsilas performances we tested our new robot with three modalities of visual information presentation in the teleoperation interfaces, with the use of virtual reality for operator interfaces, in a setup reproducing home like environment.","PeriodicalId":260355,"journal":{"name":"2008 Virtual Rehabilitation","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131867342","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}
Meghan Huber, B. Rabin, C. Docan, G. Burdea, Michelle E. Nwosu, Moustafa AbdelBaky, Meredith R. Golomb
{"title":"PlayStation 3-based tele-rehabilitation for children with hemiplegia","authors":"Meghan Huber, B. Rabin, C. Docan, G. Burdea, Michelle E. Nwosu, Moustafa AbdelBaky, Meredith R. Golomb","doi":"10.1109/ICVR.2008.4625145","DOIUrl":"https://doi.org/10.1109/ICVR.2008.4625145","url":null,"abstract":"The convergence of game technology (software and hardware), the Internet, and rehabilitation science forms the second-generation virtual rehabilitation framework. This reduced-cost and patient/therapist familiarity facilitate adoption in clinical practice. This paper presents a PlayStation 3-based hand physical rehabilitation system for children with hemiplegia due to perinatal brain injury (hemiplegic cerebral palsy) or later childhood stroke. Unlike precursor systems aimed at providing hand training for post-stroke adults in a clinical setting, the experimental system described here was developed for in-home tele-rehabilitation on a game console for children and adults with chronic hemiplegia after stroke or other focal brain injury. Significant improvements in Activities of Daily Living function followed three months of training at home on the system. Clinical trials are ongoing at this time.","PeriodicalId":260355,"journal":{"name":"2008 Virtual Rehabilitation","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133623358","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":"The effects of increased attentional demand on the perception of visual vertical","authors":"L. Hughey, R. Kizony, C. Perez, J. Fung","doi":"10.1109/ICVR.2008.4625141","DOIUrl":"https://doi.org/10.1109/ICVR.2008.4625141","url":null,"abstract":"Balance and locomotion involve multi-sensory integration while meeting environmental demands. In addition, increased task complexity negatively affects postural control in aging and patient populations. The goal of this pilot study was to examine the effects of aging and cognitive load on the visual perception of vertical. Four young and 3 older individuals participated. Subjective visual vertical (SVV) performance deteriorated more in the older individuals as the task complexity increased. However, within group variability was high. The expected increase in sample size should further clarify the role of each sensory system in the perception of SVV.","PeriodicalId":260355,"journal":{"name":"2008 Virtual Rehabilitation","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130082231","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-centered socially assistive robotics for rehabilitation: Is it time for a robot coach?","authors":"M. Matarić","doi":"10.1109/ICVR.2008.4625111","DOIUrl":"https://doi.org/10.1109/ICVR.2008.4625111","url":null,"abstract":"Human-robot interaction (HRI) for socially assistive applications is a growing research area at the intersection of robotics, health science, psychology, social and cognitive science. Assistive robotics has the potential to enhance quality of life for large user populations. Individuals in rehabilitation therapy are potential beneficiaries of socially assistive technology, both for improved mobility and for improved outcomes in recovery. Socially assistive robotics (SAR) focuses on assisting through social, not physical, interaction (D. Feil-Seifer and M.J. Mataric, 2005). SAR can offer cost-effective methods for aiding recovery by maximizing the patient motivation both during and after structured rehabilitation. We are developing a general and affordable technology that can provide supplemental therapy, supervision, and encouragement of functional practice for individuals with impaired movement capability in an effort to significantly augment in- and out-of clinic care. This creates a critical niche for SAR, wherein human-robot interaction can be used not to replace physical or occupational therapists, but to augment human care as a readily available individualized rehabilitation aid.","PeriodicalId":260355,"journal":{"name":"2008 Virtual Rehabilitation","volume":"42 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129659808","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}
Mindy F. Levin, Eliane C. Magdalon, S. M. Michaelsen, Antonio A. F. Quevedo
{"title":"Comparison of reaching and grasping kinematics in patients with hemiparesis and in healthy controls in virtual and physical environments","authors":"Mindy F. Levin, Eliane C. Magdalon, S. M. Michaelsen, Antonio A. F. Quevedo","doi":"10.1109/ICVR.2008.4625123","DOIUrl":"https://doi.org/10.1109/ICVR.2008.4625123","url":null,"abstract":"Kinematics of reaching and grasping movements to physical and virtual objects placed on a table in front of the body midline were compared in 10 healthy and 12 hemiparetic subjects post-stroke. Despite minor differences in performance variables (movement time, arm trajectory) and joint ranges, arm and hand movement patterns were similar in the two environments. Differences may be due to attributes of the VR environment. Relevance to rehabilitation will be discussed.","PeriodicalId":260355,"journal":{"name":"2008 Virtual Rehabilitation","volume":"312 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123497786","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}
R. Leder, G. Azcárate, R. Savage, S. Savage, L. Sucar, D. Reinkensmeyer, C. Toxtli, E. Roth, A. Molina
{"title":"Nintendo Wii remote for computer simulated arm and wrist therapy in stroke survivors with upper extremity hemipariesis","authors":"R. Leder, G. Azcárate, R. Savage, S. Savage, L. Sucar, D. Reinkensmeyer, C. Toxtli, E. Roth, A. Molina","doi":"10.1109/ICVR.2008.4625137","DOIUrl":"https://doi.org/10.1109/ICVR.2008.4625137","url":null,"abstract":"The Nintendo Wii remote is a compact, readily accessible position, orientation, and motion sensing technology with blue tooth wireless communication. We have integrated the 3D position sensor to our existing gesture therapy system of computer simulated therapy exercises. We have also used pitch, yaw, and roll, from the Wii remote 3D accelerometer to navigate a fly-through of an arbitrary Direct-X generated terrain. The hardware-based orientation and motion sensing capabilities of the Wii remote complement vision-based systems and interface well with wrist exercises. It is conceivable to reduce the size of the technology such that each finger could have one or more accelerometers mounted with wireless communication. The Wii remote model is promising for integration into clinical and home-based rehabilitation exercise therapy systems.","PeriodicalId":260355,"journal":{"name":"2008 Virtual Rehabilitation","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128953372","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}