keyword
MENU ▼
Read by QxMD icon Read
search

robotics stroke

keyword
https://www.readbyqxmd.com/read/27914920/can-lowering-the-guidance-force-of-robot-assisted-gait-training-induce-a-sufficient-metabolic-demand-in-subacute-dependent-ambulatory-stroke-patients
#1
So Young Lee, Eun Young Han, Bo Ryun Kim, Min Ho Chun, Yong Ki Lee
OBJECTIVE: To assess the effects of guidance force (GF) and gait speed (GS) on cardiorespiratory responses and energy cost in subacute dependent ambulatory stroke patients. DESIGN: Cross sectional study. SETTING: University rehabilitation hospital. PARTICIPANTS: Ten subacute stroke patients (mean age: 64.50±19.20), who were dependent ambulators (functional ambulation category [FAC] ≤2). INTERVENTIONS: Patients participated in cardiorespiratory tests during robot-assisted gait training...
November 30, 2016: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/27895574/robot-assisted-rehabilitation-of-ankle-plantar-flexors-spasticity-a-3-month-study-with-proprioceptive-neuromuscular-facilitation
#2
Zhihao Zhou, Yao Sun, Ninghua Wang, Fan Gao, Kunlin Wei, Qining Wang
In this paper, we aim to investigate the effect of proprioceptive neuromuscular facilitation (PNF)-based rehabilitation for ankle plantar flexors spasticity by using a Robotic Ankle-foot Rehabilitation System (RARS). A modified robot-assisted system was proposed, and seven poststroke patients with hemiplegic spastic ankles participated in a 3-month robotic PNF training. Their impaired sides were used as the experimental group, while their unimpaired sides as the control group. A robotic intervention for the experimental group started from a 2-min passive stretching to warming-up or relaxing the soleus and gastrocnemius muscles and also ended with the same one...
2016: Frontiers in Neurorobotics
https://www.readbyqxmd.com/read/27895105/robot-assisted-mechanical-therapy-attenuates-stroke-induced-limb-skeletal-muscle-injury
#3
Chandan K Sen, Savita Khanna, Hallie Harris, Richard Stewart, Maria Balch, Mallory Heigel, Seth Teplitsky, Surya Gnyawali, Cameron Rink
The efficacy and optimization of poststroke physical therapy paradigms is challenged in part by a lack of objective tools available to researchers for systematic preclinical testing. This work represents a maiden effort to develop a robot-assisted mechanical therapy (RAMT) device to objectively address the significance of mechanical physiotherapy on poststroke outcomes. Wistar rats were subjected to right hemisphere middle-cerebral artery occlusion and reperfusion. After 24 h, rats were split into control (RAMT(-)) or RAMT(+) groups (30 min daily RAMT over the stroke-affected gastrocnemius) and were followed up to poststroke d 14...
November 28, 2016: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/27891088/an-emg-interface-for-the-control-of-motion-and-compliance-of-a-supernumerary-robotic-finger
#4
Irfan Hussain, Giovanni Spagnoletti, Gionata Salvietti, Domenico Prattichizzo
In this paper, we propose a novel electromyographic (EMG) control interface to control motion and joints compliance of a supernumerary robotic finger. The supernumerary robotic fingers are a recently introduced class of wearable robotics that provides users additional robotic limbs in order to compensate or augment the existing abilities of natural limbs without substituting them. Since supernumerary robotic fingers are supposed to closely interact and perform actions in synergy with the human limbs, the control principles of extra finger should have similar behavior as human's ones including the ability of regulating the compliance...
2016: Frontiers in Neurorobotics
https://www.readbyqxmd.com/read/27885161/a-rehabilitation-internet-of-things-in-the-home-to-augment-motor-skills-and-exercise-training
#5
Bruce H Dobkin
Although motor learning theory has led to evidence-based practices, few trials have revealed the superiority of one theory-based therapy over another after stroke. Nor have improvements in skills been as clinically robust as one might hope. We review some possible explanations, then potential technology-enabled solutions. Over the Internet, the type, quantity, and quality of practice and exercise in the home and community can be monitored remotely and feedback provided to optimize training frequency, intensity, and progression at home...
November 23, 2016: Neurorehabilitation and Neural Repair
https://www.readbyqxmd.com/read/27884739/structural-and-functional-improvements-due-to-robot-assisted-gait-training-in-the-stroke-injured-brain
#6
Hea Eun Yang, Sunghyon Kyeong, Seung Hwa Lee, Won-Jae Lee, Sang Won Ha, Seung Min Kim, Hyunkoo Kang, Won Min Lee, Chang Soon Kang, Dae Hyun Kim
Robot-assisted gait training (RAGT) can improve walking ability after stroke. Because the underlying mechanisms are still unknown, we analyzed changes in post-stroke injured brains after RAGT. Ten non-ambulatory patients receiving inpatient rehabilitation were examined within 3 months of stroke onset. RAGT consisted of 45minutes of training, 3days per week. We acquired diffusion tensor imaging (DTI) data before and after 20 sessions of RAGT. Fractional anisotropy (FA) maps were then used to determine neural changes after RAGT...
November 21, 2016: Neuroscience Letters
https://www.readbyqxmd.com/read/27869190/embodied-neurofeedback-with-an-anthropomorphic-robotic-hand
#7
Niclas Braun, Reiner Emkes, Jeremy D Thorne, Stefan Debener
Neurofeedback-guided motor imagery training (NF-MIT) has been suggested as a promising therapy for stroke-induced motor impairment. Whereas much NF-MIT research has aimed at signal processing optimization, the type of sensory feedback given to the participant has received less attention. Often the feedback signal is highly abstract and not inherently coupled to the mental act performed. In this study, we asked whether an embodied feedback signal is more efficient for neurofeedback operation than a non-embodiable feedback signal...
November 21, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27866116/individuals-with-chronic-hemiparetic-stroke-can-correctly-match-forearm-positions-within-a-single-arm
#8
Netta Gurari, Justin M Drogos, Julius P A Dewald
OBJECTIVE: Previous studies determined, using between arms position matching assessments, that at least one-half of individuals with stroke have an impaired position sense. We investigated whether individuals with chronic stroke who have impairments mirroring arm positions also have impairments identifying the location of each arm in space. METHODS: Participants with chronic hemiparetic stroke and age-matched participants without neurological impairments (controls) performed a between forearms position matching task based on a clinical assessment and a single forearm position matching task, using passive and active movements, based on a robotic assessment...
October 27, 2016: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/27859735/bottlebrush-elastomers-a-new-platform-for-freestanding-electroactuation
#9
Mohammad Vatankhah-Varnoosfaderani, William F M Daniel, Alexandr P Zhushma, Qiaoxi Li, Benjamin J Morgan, Krzysztof Matyjaszewski, Daniel P Armstrong, Richard J Spontak, Andrey V Dobrynin, Sergei S Sheiko
Freestanding, single-component dielectric actuators are designed based on bottlebrush elastomers that enable giant reversible strokes at relatively low electric fields and altogether avoid preactuation mechanical manipulation. This materials design platform allows for independent tuning of actuator rigidity and elasticity over broad ranges without changing chemical composition, which opens new opportunities in soft-matter robotics.
November 8, 2016: Advanced Materials
https://www.readbyqxmd.com/read/27847124/robot-assisted-rehabilitation-of-hand-paralysis-after-stroke-reduces-wrist-edema-and-pain-a-prospective-clinical-trial
#10
Alberto Borboni, Jorge H Villafañe, Chiara Mullè, Kristin Valdes, Rodolfo Faglia, Giovanni Taveggia, Stefano Negrini
OBJECTIVE: The purpose of this study was to determine whether passive robotic-assisted hand motion, in addition to standard rehabilitation, would reduce hand pain, edema, or spasticity in all patients following acute stroke, in patients with and without hand paralysis. METHODS: Thirty-five participants, aged 45 to 80 years, with functional impairments of their upper extremities after a stroke were recruited for the study from September 2013 to October 2013. One group consisted of 16 patients (mean age ± SD, 68 ± 9 years) with full paralysis and the other groups included 14 patients (mean age ± SD, 67 ± 8 years) with partial paralysis...
November 12, 2016: Journal of Manipulative and Physiological Therapeutics
https://www.readbyqxmd.com/read/27827517/using-robot-fully-assisted-functional-movements-in-upper-limb-rehabilitation-of-chronic-stroke-patients-preliminary-results
#11
Marco Caimmi, Andrea Chiavenna, Alessandro Scano, Giulio Gasperini, Chiara Giovanzana, Lorenzo Molinari Tosatti, Franco Molteni
BACKGROUND: Robotic rehabilitation is promising to promote function in stroke patients. The assist as needed training paradigm has shown to stimulate neuroplasticity but often cannot be used because stroke patients are too impaired to actively control the robot against gravity. AIM: To verify whether a rehabilitation intervention based on robot fully assisted Reaching against gravity (RCH) and Hand-to-Mouth (HTM) can promote upper-limb function in chronic stroke...
November 9, 2016: European Journal of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/27826223/self-paced-reaching-after-stroke-a-quantitative-assessment-of-longitudinal-and-directional-sensitivity-using-the-h-man-planar-robot-for-upper-limb-neurorehabilitation
#12
Asif Hussain, Aamani Budhota, Charmayne Mary Lee Hughes, Wayne D Dailey, Deshmukh A Vishwanath, Christopher W K Kuah, Lester H L Yam, Yong J Loh, Liming Xiang, Karen S G Chua, Etienne Burdet, Domenico Campolo
Technology aided measures offer a sensitive, accurate and time-efficient approach for the assessment of sensorimotor function after neurological insult compared to standard clinical assessments. This study investigated the sensitivity of robotic measures to capture differences in planar reaching movements as a function of neurological status (stroke, healthy), direction (front, ipsilateral, contralateral), movement segment (outbound, inbound), and time (baseline, post-training, 2-week follow-up) using a planar, two-degrees of freedom, robotic-manipulator (H-Man)...
2016: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/27814305/gait-training-with-hybrid-assistive-limb-enhances-the-gait-functions-in-subacute-stroke-patients-a-pilot-study
#13
Kenichi Yoshikawa, Masafumi Mizukami, Hiroaki Kawamoto, Ayumu Sano, Kazunori Koseki, Kumiko Sano, Yasutsugu Asakawa, Yutaka Kohno, Kei Nakai, Masahiko Gosho, Hideo Tsurushima
BACKGROUND: The robotic Hybrid Assistive Limb (HAL) provides motion according to the wearer's voluntary activity. HAL training effects on walking speed and capacity have not been clarified in subacute stroke. OBJECTIVES: To determine improvement in walking ability by HAL and the most effective improvement measure for use in future large-scale trials. METHODS: Sixteen first-ever hemiplegic stroke patients completed at least 20 sessions over 5 weeks...
October 31, 2016: NeuroRehabilitation
https://www.readbyqxmd.com/read/27799902/localization-of-impaired-kinesthetic-processing-post-stroke
#14
Jeffrey M Kenzie, Jennifer A Semrau, Sonja E Findlater, Amy Y Yu, Jamsheed A Desai, Troy M Herter, Michael D Hill, Stephen H Scott, Sean P Dukelow
Kinesthesia is our sense of limb motion, and allows us to gauge the speed, direction, and amplitude of our movements. Over half of stroke survivors have significant impairments in kinesthesia, which leads to greatly reduced recovery and function in everyday activities. Despite the high reported incidence of kinesthetic deficits after stroke, very little is known about how damage beyond just primary somatosensory areas affects kinesthesia. Stroke provides an ideal model to examine structure-function relationships specific to kinesthetic processing, by comparing lesion location with behavioral impairment...
2016: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/27799719/analysis-approaches-and-interventions-with-occupational-performance
#15
REVIEW
Sinae Ahn
[Purpose] The purpose of this study was to analyze approaches and interventions with occupational performance in patients with stroke. [Subjects and Methods] In this study, articles published in the past 10 years were searched. The key terms used were "occupational performance AND stroke" and "occupational performance AND CVA". A total 252 articles were identified, and 79 articles were selected. All interventions were classified according to their approaches according to 6 theories. All interventions were analyzed for frequency...
September 2016: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/27794362/robotic-quantification-of-upper-extremity-loss-of-independent-joint-control-or-flexion-synergy-in-individuals-with-hemiparetic-stroke-a-review-of-paradigms-addressing-the-effects-of-shoulder-abduction-loading
#16
REVIEW
Michael D Ellis, Yiyun Lan, Jun Yao, Julius P A Dewald
Unsupported or "against-gravity" reaching and hand opening movements are greatly impaired in individuals with hemiparetic stroke. The reduction in reaching excursion and hand opening is thought to be primarily limited by abnormal muscle co-activation of shoulder abductors with distal limb flexors, known as flexion synergy, that results in a loss of independent joint control or joint individuation. Our laboratory employs several methods for quantifying this movement impairment, however the most documented techniques are sophisticated and laboratory-based...
October 29, 2016: Journal of Neuroengineering and Rehabilitation
https://www.readbyqxmd.com/read/27790085/what-turns-assistive-into-restorative-brain-machine-interfaces
#17
Alireza Gharabaghi
Brain-machine interfaces (BMI) may support motor impaired patients during activities of daily living by controlling external devices such as prostheses (assistive BMI). Moreover, BMIs are applied in conjunction with robotic orthoses for rehabilitation of lost motor function via neurofeedback training (restorative BMI). Using assistive BMI in a rehabilitation context does not automatically turn them into restorative devices. This perspective article suggests key features of restorative BMI and provides the supporting evidence: In summary, BMI may be referred to as restorative tools when demonstrating subsequently (i) operant learning and progressive evolution of specific brain states/dynamics, (ii) correlated modulations of functional networks related to the therapeutic goal, (iii) subsequent improvement in a specific task, and (iv) an explicit correlation between the modulated brain dynamics and the achieved behavioral gains...
2016: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/27762641/the-immediate-effects-of-robot-assistance-on-energy-consumption-and-cardiorespiratory-load-during-walking-compared-to-walking-without-robot-assistance-a-systematic-review
#18
Nina Lefeber, Eva Swinnen, Eric Kerckhofs
PURPOSE: The integration of sufficient cardiovascular stress into robot-assisted gait (RAG) training could combine the benefits of both RAG and aerobic training. The aim was to summarize literature data on the immediate effects of RAG compared to walking without robot-assistance on metabolic-, cardiorespiratory- and fatigue-related parameters. METHODS: PubMed and Web of Science were searched for eligible articles till February 2016. Means, SDs and significance values were extracted...
October 20, 2016: Disability and Rehabilitation. Assistive Technology
https://www.readbyqxmd.com/read/27741123/robot-assisted-gait-training-improves-brachial-ankle-pulse-wave-velocity-and-peak-aerobic-capacity-in-subacute-stroke-patients-with-totally-dependent-ambulation-randomized-controlled-trial
#19
Eun Young Han, Sang Hee Im, Bo Ryun Kim, Min Ji Seo, Myeong Ok Kim
OBJECTIVE: Brachial-ankle pulse wave velocity (baPWV) evaluates arterial stiffness and also predicts early outcome in stroke patients. The objectives of this study were to investigate arterial stiffness of subacute nonfunctional ambulatory stroke patients and to compare the effects of robot-assisted gait therapy (RAGT) combined with rehabilitation therapy (RT) on arterial stiffness and functional recovery with those of RT alone. METHOD: The RAGT group (N = 30) received 30 minutes of robot-assisted gait therapy and 30 minutes of conventional RT, and the control group (N = 26) received 60 minutes of RT, 5 times a week for 4 weeks...
October 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27740656/shape-memory-polymer-nanocomposites-with-a-3d-conductive-network-for-bidirectional-actuation-and-locomotion-application
#20
Qingyu Peng, Hongqiu Wei, Yuyang Qin, Zaishan Lin, Xu Zhao, Fan Xu, Jinsong Leng, Xiaodong He, Anyuan Cao, Yibin Li
Electrical stimulation of shape-memory polymers (SMPs) has many advantages over thermal methods; creating an efficient conductive path through the bulk polymers is essential for developing high performance electroactive systems. Here, we show that a three-dimensional (3D) porous carbon nanotube sponge can serve as a built-in integral conductive network to provide internal, homogeneous, in situ Joule heating for shape-memory polymers, thus significantly improving the mechanical and thermal behavior of SMPs. As a result, the 3D nanocomposites show a fast response and produce large exerting forces (with a maximum flexural stress of 14...
October 14, 2016: Nanoscale
keyword
keyword
117833
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"