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https://www.readbyqxmd.com/read/28542076/comparative-analysis-of-perioperative-and-mid-term-results-of-tecab-and-midcab-for-revascularization-of-anterior-wall
#1
Markus Kofler, Thomas Schachner, Sebastian J Reinstadler, Lukas Stastny, Julia Dumfarth, Dominik Wiedemann, Gudrun Feuchtner, Guy Friedrich, Johannes Bonatti, Nikolaos Bonaros
OBJECTIVE: Totally endoscopic coronary artery bypass (TECAB) and minimally invasive direct coronary artery bypass (MIDCAB) grafting through minithoracotomy are currently the two minimally invasive surgical techniques of left ventricular anterior wall revascularization. We aimed to compare both techniques in terms of perioperative and mid-term results. METHODS: Arrested heart TECAB was carried out in 204 patients with a median (range) age of 60 (53-76) years and a median (range) EuroSCORE I of 2 (0-3)...
May 24, 2017: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
https://www.readbyqxmd.com/read/28540536/effects-of-robot-assisted-upper-limb-rehabilitation-in-stroke-patients-a-systematic-review-with-meta-analysis
#2
Rachele Bertani, Corrado Melegari, Maria C De Cola, Alessia Bramanti, Placido Bramanti, Rocco Salvatore Calabrò
Technology-supported training is emerging as a solution to support therapists in their efforts providing high-intensity, repetitive, and task-specific treatment, in order to enhance the recovery process. The aim of this review is to assess the effectiveness of different robotic devices (end-effector and exoskeleton robots) in comparison with any other type of intervention. Furthermore, we aim to assess whether or not better improvements are obtained in the sub-acute phase after stroke onset than in the chronic phase...
May 24, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28532512/inter-rater-reliability-of-kinesthetic-measurements-with-the-kinarm-robotic-exoskeleton
#3
Jennifer A Semrau, Troy M Herter, Stephen H Scott, Sean P Dukelow
BACKGROUND: Kinesthesia (sense of limb movement) has been extremely difficult to measure objectively, especially in individuals who have survived a stroke. The development of valid and reliable measurements for proprioception is important to developing a better understanding of proprioceptive impairments after stroke and their impact on the ability to perform daily activities. We recently developed a robotic task to evaluate kinesthetic deficits after stroke and found that the majority (~60%) of stroke survivors exhibit significant deficits in kinesthesia within the first 10 days post-stroke...
May 22, 2017: Journal of Neuroengineering and Rehabilitation
https://www.readbyqxmd.com/read/28527224/does-assist-as-needed-upper-limb-robotic-therapy-promote-participation-in-repetitive-activity-based-motor-training-in-sub-acute-stroke-patients-with-severe-paresis
#4
Anne-Gaëlle Grosmaire, Christophe Duret
BACKGROUND: Repetitive, active movement-based training promotes brain plasticity and motor recovery after stroke. Robotic therapy provides highly repetitive therapy that reduces motor impairment. However, the effect of assist-as-needed algorithms on patient participation and movement quality is not known. OBJECTIVE: To analyze patient participation and motor performance during highly repetitive assist-as-needed upper limb robotic therapy in a retrospective study...
May 19, 2017: NeuroRehabilitation
https://www.readbyqxmd.com/read/28526482/reducing-trunk-compensation-in-stroke-survivors-a-randomized-crossover-trial-comparing-visual-vs-force-feedback-modalities
#5
Bulmaro Adolfo Valdés, Andrea Nicole Schneider, Hendrik Fridolijn Machiel Van der Loos
OBJECTIVE: To investigate whether the compensatory trunk movements of stroke survivors observed during reaching tasks can be decreased by force and visual feedback, and examine whether one of these feedback modalities is more efficacious than the other in reducing this compensatory tendency. DESIGN: Randomized Crossover Trial SETTING: University research laboratory PARTICIPANTS: 15 community dwelling older adults: 5 female, 64 ± 11 years old, with hemiplegia from non-traumatic hemorrhagic or ischemic stroke (> 3 months post-stroke), recruited from stroke recovery groups, the research group's website and the community...
May 16, 2017: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/28509865/detecting-and-classifying-human-touches-in-a-social-robot-through-acoustic-sensing-and-machine-learning
#6
Fernando Alonso-Martín, Juan José Gamboa-Montero, José Carlos Castillo, Álvaro Castro-González, Miguel Ángel Salichs
An important aspect in Human-Robot Interaction is responding to different kinds of touch stimuli. To date, several technologies have been explored to determine how a touch is perceived by a social robot, usually placing a large number of sensors throughout the robot's shell. In this work, we introduce a novel approach, where the audio acquired from contact microphones located in the robot's shell is processed using machine learning techniques to distinguish between different types of touches. The system is able to determine when the robot is touched (touch detection), and to ascertain the kind of touch performed among a set of possibilities: stroke, tap, slap, and tickle (touch classification)...
May 16, 2017: Sensors
https://www.readbyqxmd.com/read/28505990/the-features-of-gait-exercise-assist-robot-precise-assist-control-and-enriched-feedback
#7
Satoshi Hirano, Eiichi Saitoh, Shigeo Tanabe, Hiroki Tanikawa, Shinya Sasaki, Daisuke Kato, Hitoshi Kagaya, Norihide Itoh, Hitoshi Konosu
BACKGROUND: In a patient with severe hemiplegia, the risk of the knee giving way is high during the early stage of gait exercise with an ankle-foot orthosis. However, use of a knee-ankle-foot orthosis has many problems such as large amount of assistance and compensatory motions. To resolve these problems, we have engaged in the development of the Gait Exercise Assist Robot (GEAR). OBJECTIVE: To evaluate the improvement efficiency of walk with GEAR in a stroke patient...
May 11, 2017: NeuroRehabilitation
https://www.readbyqxmd.com/read/28505988/intensive-seated-robotic-training-of-the-ankle-in-patients-with-chronic-stroke-differentially-improves-gait
#8
Johanna L Chang, Regina Y Lin, Maira Saul, Philip J Koch, Hermano Igo Krebs, Bruce T Volpe
BACKGROUND: Robotic driven treatment plans targeting isolated joints of the upper limb have improved the sensorimotor condition of patients with stroke. Similar intensive efforts to allay lower limb gait impairment have not been so successful. In patients with stroke, targeted robot assisted training of the ankle joint, in a seated position, has demonstrated significant alterations in ankle stiffness and foot-ankle orientation at foot strike which may provide a new treatment option for gait impairment...
May 10, 2017: NeuroRehabilitation
https://www.readbyqxmd.com/read/28505985/upper-limb-robotics-applied-to%C3%A2-neurorehabilitation-an-overview-of%C3%A2-clinical-practice
#9
Christophe Duret, Stefano Mazzoleni
BACKGROUND: During the last two decades, extensive interaction between clinicians and engineers has led to the development of systems that stimulate neural plasticity to optimize motor recovery after neurological lesions. This has resulted in the expansion of the field of robotics for rehabilitation. Studies in patients with stroke-related upper-limb paresis have shown that robotic rehabilitation can improve motor capacity. However, few other applications have been evaluated (e.g. tremor, peripheral nerve injuries or other neurological diseases)...
May 10, 2017: NeuroRehabilitation
https://www.readbyqxmd.com/read/28504943/towards-multimodal-human-robot-interaction-to-enhance-active-participation-of-users-in-gait-rehabilitation
#10
Kai Gui, Honghai Liu, Dingguo Zhang
Robotic exoskeletons for physical rehabilitation have been utilized for retraining patients suffering from paraplegia and enhancing motor recovery in recent years. However, users are not voluntarily involved in most systems. This work aims to develop a locomotion trainer with multiple gait patterns, which can be controlled by the active motion intention of users. A multimodal human-robot interaction (HRI) system is established to enhance subject's active participation during gait rehabilitation, which includes cognitive human-robot interaction (cHRI) and physical human-robot interaction (pHRI)...
May 11, 2017: IEEE Transactions on Neural Systems and Rehabilitation Engineering
https://www.readbyqxmd.com/read/28503449/feasibility-of-rehabilitation-training-with-a-newly-developed-portable-gait-assistive-robot-for-balance-function-in-hemiplegic-patients
#11
Junhyun Sung, Sehoon Choi, Hyunbae Kim, Gyuhan Lee, Changsoo Han, Younghoon Ji, Dongbin Shin, Seunghoon Hwang, Deokwon Yun, Hyeyoun Jang, Mi Jung Kim
OBJECTIVE: To investigate the clinical feasibility of a newly developed, portable, gait assistive robot (WA-H, 'walking assist for hemiplegia') for improving the balance function of patients with stroke-induced hemiplegia. METHODS: Thirteen patients underwent 12 weeks of gait training on the treadmill while wearing WA-H for 30 minutes per day, 4 days a week. Patients' balance function was evaluated by the Berg Balance Scale (BBS), Fugl-Meyer Assessment Scale (FMAS), Timed Up and Go Test (TUGT), and Short Physical Performance Battery (SPPB) before and after 6 and 12 weeks of training...
April 2017: Annals of Rehabilitation Medicine
https://www.readbyqxmd.com/read/28488268/electromechanical-assisted-training-for-walking-after-stroke
#12
REVIEW
Jan Mehrholz, Simone Thomas, Cordula Werner, Joachim Kugler, Marcus Pohl, Bernhard Elsner
BACKGROUND: Electromechanical- and robotic-assisted gait-training devices are used in rehabilitation and might help to improve walking after stroke. This is an update of a Cochrane Review first published in 2007. OBJECTIVES: To investigate the effects of automated electromechanical- and robotic-assisted gait-training devices for improving walking after stroke. SEARCH METHODS: We searched the Cochrane Stroke Group Trials Register (last searched 9 August 2016), the Cochrane Central Register of Controlled Trials (CENTRAL) (the Cochrane Library 2016, Issue 8), MEDLINE in Ovid (1950 to 15 August 2016), Embase (1980 to 15 August 2016), CINAHL (1982 to 15 August 2016), AMED (1985 to 15 August 2016), Web of Science (1899 to 16 August 2016), SPORTDiscus (1949 to 15 September 2012), the Physiotherapy Evidence Database (PEDro) (searched 16 August 2016), and the engineering databases COMPENDEX (1972 to 16 November 2012) and Inspec (1969 to 26 August 2016)...
May 10, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28483654/validity-of-robot-based-assessments-of-upper-extremity-function
#13
Alison McKenzie, Lucy Dodakian, Jill See, Vu Le, Erin Burke Quinlan, Claire Bridgford, Daniel Head, Vy L Han, Steven C Cramer
OBJECTIVE: To examine the validity of 5 robot-based assessments of arm motor function post-stroke. DESIGN: Cross sectional. SETTING: Outpatient clinical research center. PARTICIPANTS: Volunteer sample of 40 participants, age >18 years, 3-6 months post-stroke, with arm motor deficits that had plateaued. INTERVENTION: None. MAIN OUTCOME MEASURES: Clinical standards included the Fugl-Meyer Arm Motor Scale (FMA), and 5 secondary motor outcomes: hand/wrist subsection of the FMA; Action Research Arm Test (ART); Box & Blocks test (B/B); hand subscale of Stroke Impact Scale-2 (SIS); and the Barthel Index (BI)...
May 5, 2017: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/28459694/automatic-assessment-of-a-rollator-user-s-condition-during-rehabilitation-using-the-i-walker-platform
#14
Joaquin Ballesteros, Cristina Urdiales, Antonio B Martinez, Marina Tirado Reyes
Patient condition during rehabilitation has been traditionally assessed using clinical scales. These scales typically require the patient and/or the clinician to rate a number of condition related items to obtain a final score. This is a timeconsuming task, specially if a large number of patients is involved. Furthermore, during rehabilitation, user condition is expected to change steadily in time, so assessment may require to run these scales several times to each user. To save time, much effort has been focused on developing clinical scales that require little time to be completed...
April 25, 2017: IEEE Transactions on Neural Systems and Rehabilitation Engineering
https://www.readbyqxmd.com/read/28446181/a-neuromuscular-electrical-stimulation-nmes-and-robot-hybrid-system-for-multi-joint-coordinated-upper-limb-rehabilitation-after-stroke
#15
Wei Rong, Waiming Li, Mankit Pang, Junyan Hu, Xijun Wei, Bibo Yang, Honwah Wai, Xiaoxiang Zheng, Xiaoling Hu
BACKGROUND: It is a challenge to reduce the muscular discoordination in the paretic upper limb after stroke in the traditional rehabilitation programs. METHOD: In this study, a neuromuscular electrical stimulation (NMES) and robot hybrid system was developed for multi-joint coordinated upper limb physical training. The system could assist the elbow, wrist and fingers to conduct arm reaching out, hand opening/grasping and arm withdrawing by tracking an indicative moving cursor on the screen of a computer, with the support from the joint motors and electrical stimulations on target muscles, under the voluntary intention control by electromyography (EMG)...
April 26, 2017: Journal of Neuroengineering and Rehabilitation
https://www.readbyqxmd.com/read/28443784/robotic-characterization-of-ipsilesional-motor-function-in-subacute-stroke
#16
Jennifer A Semrau, Troy M Herter, Jeffrey M Kenzie, Sonja E Findlater, Stephen H Scott, Sean P Dukelow
BACKGROUND: Poststroke impairments of the ipsilesional arm are often discussed, but rarely receive focused rehabilitation. Ipsilesional deficits may affect daily function and although many studies have investigated them in chronic stroke, few characterizations have been made in the subacute phase. Furthermore, most studies have quantified ipsilesional deficits using clinical measures that can fail to detect subtle, but important deficits in motor function. OBJECTIVE: We aimed to quantify reaching deficits of the contra- and ipsilesional limbs in the subacute phase poststroke...
April 1, 2017: Neurorehabilitation and Neural Repair
https://www.readbyqxmd.com/read/28442332/the-individual-preferred-velocity-of-stroking-touch-as-a-stable-measurement
#17
Amanda Luong, Johanna Bendas, Roberta Etzi, Håkan Olausson, Ilona Croy
Affective touch is of fundamental importance in human social interactions and there is an increasing interest in using touch as a probe for general affective perception. To this end, we developed a test of preferred velocity (ToP-V) of touch and tested whether the individually preferred stroking velocity is a stable and valid measurement. In study one, thirty healthy participants (18-30years, 17 women) were examined with the ToP-V. Therefore, pairs of different slow stroking stimuli were presented by the Rotary Tactile Stimulator - a robotic device - on the forearm and the participants chose the velocity they preferred in a forced choice paradigm...
April 22, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28435235/age-based-model-for-metacarpophalangeal-joint-proprioception-in-elderly
#18
Mike D Rinderknecht, Olivier Lambercy, Vanessa Raible, Joachim Liepert, Roger Gassert
Neurological injuries such as stroke can lead to proprioceptive impairment. For an informed diagnosis, prognosis, and treatment planning, it is essential to be able to distinguish between healthy performance and deficits following the neurological injury. Since there is some evidence that proprioception declines with age and stroke occurs predominantly in the elderly population, it is important to create a healthy reference model in this specific age group. However, most studies investigate age effects by comparing young and elderly subjects and do not provide a model within a target age range...
2017: Clinical Interventions in Aging
https://www.readbyqxmd.com/read/28427422/differences-in-muscle-activity-and-temporal-step-parameters-between-lokomat-guided-walking-and-treadmill-walking-in-post-stroke-hemiparetic-patients-and-healthy-walkers
#19
Klaske van Kammen, Anne M Boonstra, Lucas H V van der Woude, Heleen A Reinders-Messelink, Rob den Otter
BACKGROUND: The Lokomat is a robotic exoskeleton that can be used to train gait function in hemiparetic stroke. To purposefully employ the Lokomat for training, it is important to understand (1) how Lokomat guided walking affects muscle activity following stroke and how these effects differ between patients and healthy walkers, (2) how abnormalities in the muscle activity of patients are modulated through Lokomat guided gait, and (3) how temporal step characteristics of patients were modulated during Lokomat guided walking...
April 20, 2017: Journal of Neuroengineering and Rehabilitation
https://www.readbyqxmd.com/read/28412953/quantification-of-task-dependent-cortical-activation-evoked-by-robotic-continuous-wrist-joint-manipulation-in-chronic-hemiparetic-stroke
#20
Martijn P Vlaar, Teodoro Solis-Escalante, Julius P A Dewald, Erwin E H van Wegen, Alfred C Schouten, Gert Kwakkel, Frans C T van der Helm
BACKGROUND: Cortical damage after stroke can drastically impair sensory and motor function of the upper limb, affecting the execution of activities of daily living and quality of life. Motor impairment after stroke has been thoroughly studied, however sensory impairment and its relation to movement control has received less attention. Integrity of the somatosensory system is essential for feedback control of human movement, and compromised integrity due to stroke has been linked to sensory impairment...
April 17, 2017: Journal of Neuroengineering and Rehabilitation
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