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Total 601 results found since Jan 2013.

Sensors, Vol. 22, Pages 3747: Robustness and Tracking Performance Evaluation of PID Motion Control of 7 DoF Anthropomorphic Exoskeleton Robot Assisted Upper Limb Rehabilitation
Rahman Upper limb dysfunctions (ULD) are common following a stroke. Annually, more than 15 million people suffer a stroke worldwide. We have developed a 7 degrees of freedom (DoF) exoskeleton robot named the smart robotic exoskeleton (SREx) to provide upper limb rehabilitation therapy. The robot is designed for adults and has an extended range of motion compared to our previously designed ETS-MARSE robot. While providing rehabilitation therapy, the exoskeleton robot is always subject to random disturbance. Moreover, these types of robots manage various patients and different degrees of impairment, which are quite impo...
Source: Sensors - May 14, 2022 Category: Biotechnology Authors: Tanvir Ahmed Md Rasedul Islam Brahim Brahmi Mohammad Habibur Rahman Tags: Article Source Type: research

Sensors, Vol. 22, Pages 3677: Wearables in Swimming for Real-Time Feedback: A Systematic Review
arbosa Nowadays, wearables are a must-have tool for athletes and coaches. Wearables can provide real-time feedback to athletes on their athletic performance and other training details as training load, for example. The aim of this study was to systematically review studies that assessed the accuracy of wearables providing real-time feedback in swimming. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines were selected to identify relevant studies. After screening, 283 articles were analyzed and 18 related to the assessment of the accuracy of wearables providing real-time feedback ...
Source: Sensors - May 12, 2022 Category: Biotechnology Authors: Jorge E. Morais Jo ão P. Oliveira Tatiana Sampaio Tiago M. Barbosa Tags: Review Source Type: research

Sensors, Vol. 22, Pages 3674: Linear-Range Extension for Linear Variable Differential Transformer Using Hyperbolic Sine Function
iewruja In this paper, a circuit technique to extend the measuring range of a linear variable differential transformer (LVDT) is proposed. The transfer characteristic of the LVDT contains the odd function form of the cubic polynomial. Therefore, the measuring range of a commercial LVDT is linear in a narrow range compared to its physical dimensions. The wide measuring range of the LVDT requires a large structure of the LVDT, which increases the scale and the cost of the measurement system. The measuring range of the LVDT can be linearly extended to the maximum of the stroke range using the proposed technique. The reali...
Source: Sensors - May 12, 2022 Category: Biotechnology Authors: Apinai Rerkratn Jakkapun Tongcharoen Wandee Petchmaneelumka Vanchai Riewruja Tags: Article Source Type: research

Sensors, Vol. 22, Pages 3604: Quantitative Assessment of Hand Function in Healthy Subjects and Post-Stroke Patients with the Action Research Arm Test
era The Action Research Arm Test (ARAT) can provide subjective results due to the difficulty assessing abnormal patterns in stroke patients. The aim of this study was to identify joint impairments and compensatory grasping strategies in stroke patients with left (LH) and right (RH) hemiparesis. An experimental study was carried out with 12 patients six months after a stroke (three women and nine men, mean age: 65.2 ± 9.3 years), and 25 healthy subjects (14 women and 11 men, mean age: 40.2 ± 18.1 years. The subjects were evaluated during the performance of the ARAT using a data glove. Strok...
Source: Sensors - May 10, 2022 Category: Biotechnology Authors: Jesus Fernando Padilla-Maga ña Esteban Pe ña-Pitarch Isahi S ánchez-Suarez Neus Tic ó-Falguera Tags: Article Source Type: research

Sensors, Vol. 22, Pages 3368: Quantitative Evaluation System of Wrist Motor Function for Stroke Patients Based on Force Feedback
Jiping Wang Motor function evaluation is a significant part of post-stroke rehabilitation protocols, and the evaluation of wrist motor function helps provide patients with individualized rehabilitation training programs. However, traditional assessment is coarsely graded, lacks quantitative analysis, and relies heavily on clinical experience. In order to objectively quantify wrist motor dysfunction in stroke patients, a novel quantitative evaluation system based on force feedback and machine learning algorithm was proposed. Sensors embedded in the force-feedback robot record the kinematic and movement data of the sub...
Source: Sensors - April 28, 2022 Category: Biotechnology Authors: Kangjia Ding Bochao Zhang Zongquan Ling Jing Chen Liquan Guo Daxi Xiong Jiping Wang Tags: Article Source Type: research

Sensors, Vol. 22, Pages 3308: User Participatory Design of a Wearable Focal Vibration Device for Home-Based Stroke Rehabilitation
hirley A. James Stroke often leads to the significant impairment of upper limb function and is associated with a decreased quality of life. Despite study results from several interventions for muscle activation and motor coordination, wide-scale adoption remains largely elusive due to under-doses and low user compliance and participation. Recent studies have shown that focal vibration has a greater potential to increase and coordinate muscle recruitment and build muscle strength and endurance. This form of treatment could widely benefit stroke survivors and therapists. Thus, this study aimed to design and develop a nov...
Source: Sensors - April 26, 2022 Category: Biotechnology Authors: Hongwu Wang Mustafa Ghazi Raghuveer Chandrashekhar Josiah Rippetoe Grace A. Duginski Louis V. Lepak Lisa R. Milhan Shirley A. James Tags: Article Source Type: research

Sensors, Vol. 22, Pages 2989: Using Robot-Based Variables during Upper Limb Robot-Assisted Training in Subacute Stroke Patients to Quantify Treatment Dose
phélie Pila In post-stroke motor rehabilitation, treatment dose description is estimated approximately. The aim of this retrospective study was to quantify the treatment dose using robot-measured variables during robot-assisted training in patients with subacute stroke. Thirty-six patients performed fifteen 60 min sessions (Session 1–Session 15) of planar, target-directed movements in addition to occupational therapy over 4 (SD 2) weeks. Fugl–Meyer Assessment (FMA) was carried out pre- and post-treatment. The actual time practiced (percentage of a 60 min session), the number of repeated mov...
Source: Sensors - April 13, 2022 Category: Biotechnology Authors: Pascal Jamin Christophe Duret Emilie Hutin Nicolas Bayle Typhaine Koeppel Jean-Michel Gracies Oph élie Pila Tags: Article Source Type: research

Athersys closing in on commercialization of its stem cell therapy
The Cleveland company said its Japanese partner has completed follow-up examinations of ischemic stroke patients who were treated with MultiStem.
Source: bizjournals.com Health Care:Biotechnology headlines - April 4, 2022 Category: Biotechnology Authors: Mary Vanac Source Type: news

Sensors, Vol. 22, Pages 2735: Validity and Reliability of Kinect v2 for Quantifying Upper Body Kinematics during Seated Reaching
oger Kinematic analysis of the upper limbs is a good way to assess and monitor recovery in individuals with stroke, but it remains little used in clinical routine due to its low feasibility. The aim of this study is to assess the validity and reliability of the Kinect v2 for the analysis of upper limb reaching kinematics. Twenty-six healthy participants performed seated hand-reaching tasks while holding a dumbbell to induce behaviour similar to that of stroke survivors. With the Kinect v2 and with the VICON, 3D upper limb and trunk motions were simultaneously recorded. The Kinect assesses trunk compensations, hand rang...
Source: Sensors - April 2, 2022 Category: Biotechnology Authors: Germain Faity Denis Mottet J érôme Froger Tags: Article Source Type: research

Sensors, Vol. 22, Pages 2728: Temporal Synergies Detection in Gait Cyclograms Using Wearable Technology
‡ The human gait can be described as the synergistic activity of all individual components of the sensory–motor system. The central nervous system (CNS) develops synergies to execute endpoint motion by coordinating muscle activity to reflect the global goals of the endpoint trajectory. This paper proposes a new method for assessing temporal dynamic synergies. Principal component analysis (PCA) has been applied on the signals acquired by wearable sensors (inertial measurement units, IMU and ground reaction force sensors, GRF mounted on feet) to detect temporal synergies in the space of two-dimensional PCA ...
Source: Sensors - April 2, 2022 Category: Biotechnology Authors: Marija M. Gavrilovi ć Milica M. Jankovi ć Tags: Article Source Type: research

BrainBox lands federal grant to develop tool to diagnose concussions in the elderly
Richmond biotech BrainBox Solutions Inc., the maker of an artificial intelligence-enabled concussion test, has been awarded a $3.5 million grant from the National Institute of Neurological Disorders and Stroke to support the development of a diagnostic tool for concussions and cognitive impairment in the elderly. The new tool, called BrainBox Geriatrics, integrates blood biomarkers with other tests to enable rapid diagnosis and prognosis with a single device at a patient’s bedside. The technology…
Source: bizjournals.com Health Care:Biotechnology headlines - March 31, 2022 Category: Biotechnology Authors: Drew Hansen Source Type: news

Correction to: Exosomes derived from microRNA-138-5poverexpressing bone marrow-derived mesenchymal stem cells confer neuroprotection to astrocytes following ischemic stroke via inhibition of LCN2
Source: Journal of Biological Engineering - March 31, 2022 Category: Biotechnology Authors: Yiming Deng, Duanduan Chen, Feng Gao, Hong Lv, Guojun Zhang, Xuan Sun, Lian Liu, Dapeng Mo, Ning Ma, Ligang Song, Xiaochuan Huo, Tianyi Yan, Jingbo Zhang and Zhongrong Miao Tags: Correction Source Type: research

Sensors, Vol. 22, Pages 2693: Biomechanical Assessment of Post-Stroke Patients & rsquo; Upper Limb before and after Rehabilitation Therapy Based on FES and VR
Sensors, Vol. 22, Pages 2693: Biomechanical Assessment of Post-Stroke Patients’ Upper Limb before and after Rehabilitation Therapy Based on FES and VR Sensors doi: 10.3390/s22072693 Authors: Daniela Montoya Patricio Barria Carlos A. Cifuentes Luis F. Aycardi André Morís Rolando Aguilar José M. Azorín Marcela Múnera Stroke is a medical condition characterized by the rapid loss of focal brain function. Post-stroke patients attend rehabilitation training to prevent the degeneration of physical function and improve upper limb movements and functional status after stroke. Promising rehabilit...
Source: Sensors - March 31, 2022 Category: Biotechnology Authors: Daniela Montoya Patricio Barria Carlos A. Cifuentes Luis F. Aycardi Andr é Morís Rolando Aguilar Jos é M. Azorín Marcela M únera Tags: Article Source Type: research

Sensors, Vol. 22, Pages 2691: Three-Dimensional Microwave Head Imaging with GPU-Based FDTD and the DBIM Method
We present a preliminary study of microwave head imaging using a three-dimensional (3-D) implementation of the distorted Born iterative method (DBIM). Our aim is to examine the benefits of using the more computationally intensive 3-D implementation in scenarios where limited prior information is available, or when the target occupies an area that is not covered by the imaging array’s transverse planes. We show that, in some cases, the 3-D implementation outperforms its two-dimensional (2-D) counterpart despite the increased number of unknowns for the linear problem at each DBIM iteration. We also discuss how ...
Source: Sensors - March 31, 2022 Category: Biotechnology Authors: Pan Lu Panagiotis Kosmas Tags: Article Source Type: research

Sensors, Vol. 22, Pages 2414: Sensing System for Plegic or Paretic Hands Self-Training Motivation
inik Patients after stroke with paretic or plegic hands require frequent exercises to promote neuroplasticity and to improve hand joint mobilization. Available devices for hand exercising are intended for persons with some level of hand control or provide continuous passive motion with limited patient involvement. Patients can benefit from self-exercising where they use the other hand to exercise the plegic or paretic one. However, post-stroke neuropsychological complications, apathy, and cognitive impairments such as forgetfulness make regular self-exercising difficult. This paper describes Przypominajka v2&md...
Source: Sensors - March 21, 2022 Category: Biotechnology Authors: Igor Zubrycki Ewa Pr Ä…czko-Pawlak Ilona Dominik Tags: Article Source Type: research