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Wu D, Tian P, Zhang S, Wang Q, Yu K, Wang Y, Gao Z, Huang L, Li X, Zhai X, Tian M, Huang C, Zhang H, Zhang J. A Surface Electromyography (sEMG) System Applied for Grip Force Monitoring. SENSORS (BASEL, SWITZERLAND) 2024; 24:3818. [PMID: 38931601 PMCID: PMC11207591 DOI: 10.3390/s24123818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2024] [Revised: 05/31/2024] [Accepted: 06/07/2024] [Indexed: 06/28/2024]
Abstract
Muscles play an indispensable role in human life. Surface electromyography (sEMG), as a non-invasive method, is crucial for monitoring muscle status. It is characterized by its real-time, portable nature and is extensively utilized in sports and rehabilitation sciences. This study proposed a wireless acquisition system based on multi-channel sEMG for objective monitoring of grip force. The system consists of an sEMG acquisition module containing four-channel discrete terminals and a host computer receiver module, using Bluetooth wireless transmission. The system is portable, wearable, low-cost, and easy to operate. Leveraging the system, an experiment for grip force prediction was designed, employing the bald eagle search (BES) algorithm to enhance the Random Forest (RF) algorithm. This approach established a grip force prediction model based on dual-channel sEMG signals. As tested, the performance of acquisition terminal proceeded as follows: the gain was up to 1125 times, and the common mode rejection ratio (CMRR) remained high in the sEMG signal band range (96.94 dB (100 Hz), 84.12 dB (500 Hz)), while the performance of the grip force prediction algorithm had an R2 of 0.9215, an MAE of 1.0637, and an MSE of 1.7479. The proposed system demonstrates excellent performance in real-time signal acquisition and grip force prediction, proving to be an effective muscle status monitoring tool for rehabilitation, training, disease condition surveillance and scientific fitness applications.
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Affiliation(s)
- Dantong Wu
- Institute of Microelectronics of the Chinese Academy of Sciences, Beijing 100029, China; (D.W.); (P.T.); (S.Z.); (Q.W.); (K.Y.); (Y.W.); (Z.G.); (L.H.); (X.L.); (X.Z.); (M.T.); (C.H.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Peng Tian
- Institute of Microelectronics of the Chinese Academy of Sciences, Beijing 100029, China; (D.W.); (P.T.); (S.Z.); (Q.W.); (K.Y.); (Y.W.); (Z.G.); (L.H.); (X.L.); (X.Z.); (M.T.); (C.H.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shuai Zhang
- Institute of Microelectronics of the Chinese Academy of Sciences, Beijing 100029, China; (D.W.); (P.T.); (S.Z.); (Q.W.); (K.Y.); (Y.W.); (Z.G.); (L.H.); (X.L.); (X.Z.); (M.T.); (C.H.)
| | - Qihang Wang
- Institute of Microelectronics of the Chinese Academy of Sciences, Beijing 100029, China; (D.W.); (P.T.); (S.Z.); (Q.W.); (K.Y.); (Y.W.); (Z.G.); (L.H.); (X.L.); (X.Z.); (M.T.); (C.H.)
| | - Kang Yu
- Institute of Microelectronics of the Chinese Academy of Sciences, Beijing 100029, China; (D.W.); (P.T.); (S.Z.); (Q.W.); (K.Y.); (Y.W.); (Z.G.); (L.H.); (X.L.); (X.Z.); (M.T.); (C.H.)
| | - Yunfeng Wang
- Institute of Microelectronics of the Chinese Academy of Sciences, Beijing 100029, China; (D.W.); (P.T.); (S.Z.); (Q.W.); (K.Y.); (Y.W.); (Z.G.); (L.H.); (X.L.); (X.Z.); (M.T.); (C.H.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhixing Gao
- Institute of Microelectronics of the Chinese Academy of Sciences, Beijing 100029, China; (D.W.); (P.T.); (S.Z.); (Q.W.); (K.Y.); (Y.W.); (Z.G.); (L.H.); (X.L.); (X.Z.); (M.T.); (C.H.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lin Huang
- Institute of Microelectronics of the Chinese Academy of Sciences, Beijing 100029, China; (D.W.); (P.T.); (S.Z.); (Q.W.); (K.Y.); (Y.W.); (Z.G.); (L.H.); (X.L.); (X.Z.); (M.T.); (C.H.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiangyu Li
- Institute of Microelectronics of the Chinese Academy of Sciences, Beijing 100029, China; (D.W.); (P.T.); (S.Z.); (Q.W.); (K.Y.); (Y.W.); (Z.G.); (L.H.); (X.L.); (X.Z.); (M.T.); (C.H.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xingchen Zhai
- Institute of Microelectronics of the Chinese Academy of Sciences, Beijing 100029, China; (D.W.); (P.T.); (S.Z.); (Q.W.); (K.Y.); (Y.W.); (Z.G.); (L.H.); (X.L.); (X.Z.); (M.T.); (C.H.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Meng Tian
- Institute of Microelectronics of the Chinese Academy of Sciences, Beijing 100029, China; (D.W.); (P.T.); (S.Z.); (Q.W.); (K.Y.); (Y.W.); (Z.G.); (L.H.); (X.L.); (X.Z.); (M.T.); (C.H.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chengjun Huang
- Institute of Microelectronics of the Chinese Academy of Sciences, Beijing 100029, China; (D.W.); (P.T.); (S.Z.); (Q.W.); (K.Y.); (Y.W.); (Z.G.); (L.H.); (X.L.); (X.Z.); (M.T.); (C.H.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Haiying Zhang
- Institute of Microelectronics of the Chinese Academy of Sciences, Beijing 100029, China; (D.W.); (P.T.); (S.Z.); (Q.W.); (K.Y.); (Y.W.); (Z.G.); (L.H.); (X.L.); (X.Z.); (M.T.); (C.H.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jun Zhang
- Institute of Microelectronics of the Chinese Academy of Sciences, Beijing 100029, China; (D.W.); (P.T.); (S.Z.); (Q.W.); (K.Y.); (Y.W.); (Z.G.); (L.H.); (X.L.); (X.Z.); (M.T.); (C.H.)
- University of Chinese Academy of Sciences, Beijing 100049, China
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Ravi K, Paidas MJ, Saad A, Jayakumar AR. Astrocytes in rare neurological conditions: Morphological and functional considerations. J Comp Neurol 2021; 529:2676-2705. [PMID: 33496339 DOI: 10.1002/cne.25118] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2020] [Revised: 01/16/2021] [Accepted: 01/19/2021] [Indexed: 01/06/2023]
Abstract
Astrocytes are a population of central nervous system (CNS) cells with distinctive morphological and functional characteristics that differ within specific areas of the brain and are widely distributed throughout the CNS. There are mainly two types of astrocytes, protoplasmic and fibrous, which differ in morphologic appearance and location. Astrocytes are important cells of the CNS that not only provide structural support, but also modulate synaptic activity, regulate neuroinflammatory responses, maintain the blood-brain barrier, and supply energy to neurons. As a result, astrocytic disruption can lead to widespread detrimental effects and can contribute to the pathophysiology of several neurological conditions. The characteristics of astrocytes in more common neuropathologies such as Alzheimer's and Parkinson's disease have significantly been described and continue to be widely studied. However, there still exist numerous rare neurological conditions in which astrocytic involvement is unknown and needs to be explored. Accordingly, this review will summarize functional and morphological changes of astrocytes in various rare neurological conditions based on current knowledge thus far and highlight remaining neuropathologies where astrocytic involvement has yet to be investigated.
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Affiliation(s)
- Karthik Ravi
- University of Michigan, Ann Arbor, Michigan, USA
| | - Michael J Paidas
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of Miami School of Medicine, Miami, Florida, USA
| | - Ali Saad
- Pathology and Laboratory Medicine, University of Miami School of Medicine, Miami, Florida, USA
| | - Arumugam R Jayakumar
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of Miami School of Medicine, Miami, Florida, USA.,South Florida VA Foundation for Research and Education Inc, Miami, Florida, USA.,General Medical Research Neuropathology Section, R&D Service, Veterans Affairs Medical Centre, Miami, Florida, USA
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Yazdanpanah N, Saghazadeh A, Rezaei N. Anosmia: a missing link in the neuroimmunology of coronavirus disease 2019 (COVID-19). Rev Neurosci 2020; 31:691-701. [PMID: 32776905 DOI: 10.1515/revneuro-2020-0039] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 07/19/2020] [Indexed: 12/22/2022]
Abstract
Just before 2020 began, a novel coronavirus, severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), brought for humans a potentially fatal disease known as coronavirus disease 2019 (COVID-19). The world has thoroughly been affected by COVID-19, while there has been little progress towards understanding the pathogenesis of COVID-19. Patients with a severe phenotype of disease and those who died from the disease have shown hyperinflammation and were more likely to develop neurological manifestations, linking the clinical disease with neuroimmunological features. Anosmia frequently occurs early in the course of COVID-19. The prevalence of anosmia would be influenced by self-diagnosis as well as self-misdiagnosis in patients with COVID-19. Despite this, the association between anosmia and COVID-19 has been a hope for research, aiming to understand the pathogenesis of COVID-19. Studies have suggested differently probable mechanisms for the development of anosmia in COVID-19, including olfactory cleft syndrome, postviral anosmia syndrome, cytokine storm, direct damage of olfactory sensory neurons, and impairment of the olfactory perception center in the brain. Thus, the observation of anosmia would direct us to find the pathogenesis of COVID-19 in the central nervous system, and this is consistent with numerous neurological manifestations related to COVID-19. Like other neurotropic viruses, SARS-CoV-2 might be able to enter the central nervous system via the olfactory epithelium and induce innate immune responses at the site of entry. Viral replication in the nonneural olfactory cells indirectly causes damage to the olfactory receptor nerves, and as a consequence, anosmia occurs. Further studies are required to investigate the neuroimmunology of COVID-19 in relation to anosmia.
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Affiliation(s)
- Niloufar Yazdanpanah
- Systematic Review and Meta-analysis Expert Group (SRMEG), Universal Scientific Education and Research Network (USERN), Tehran, 14194, Iran
- Research Center for Immunodeficiencies, Tehran University of Medical Sciences, Children's Medical Center, Dr. Qarib St, Keshavarz Blvd, Tehran, 14194, Iran
| | - Amene Saghazadeh
- Research Center for Immunodeficiencies, Tehran University of Medical Sciences, Children's Medical Center, Dr. Qarib St, Keshavarz Blvd, Tehran, 14194, Iran
- NeuroImmunology Research Association (NIRA), Universal Scientific Education and Research Network (USERN), Tehran, 14194, Iran
| | - Nima Rezaei
- Research Center for Immunodeficiencies, Tehran University of Medical Sciences, Children's Medical Center, Dr. Qarib St, Keshavarz Blvd, Tehran, 14194, Iran
- Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, 14194, Iran
- Network of Immunity in Infection, Malignancy and Autoimmunity (NIIMA), Universal Scientific Education and Research Network (USERN), Tehran, 14194, Iran
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Cameron MH, Klein EL. Screening for medical disease--nervous system disorders. J Hand Ther 2010; 23:158-71; quiz 172. [PMID: 20153950 DOI: 10.1016/j.jht.2009.11.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2009] [Revised: 11/09/2009] [Accepted: 11/13/2009] [Indexed: 02/09/2023]
Abstract
UNLABELLED NARRATIVE REVIEW: In general, nervous system disorders present with changes in sensation, strength, and cognitive function that must be recognized early for the timely referral often needed for optimal outcome. This article summarizes screening for nervous system disorders in patients who present to the hand therapist and the typical findings associated with common neurologic disorders. Recommendations for referral by the hand therapist of patients with a screening examination consistent with a nervous system disorder are also presented. Central nervous system (CNS) disorders discussed in this article include stroke, traumatic brain and spinal cord injury, CNS tumors, Parkinson disease, dementia, epilepsy, and multiple sclerosis. This is followed by a discussion of the peripheral nervous system (PNS) disorders of acquired and hereditary polyneuropathies, Guillain-Barré syndrome and myasthenia gravis. Lastly, there is a brief discussion of amyotrophic lateral sclerosis, a disorder affecting both the CNS and PNS. LEVEL OF EVIDENCE 5.
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Affiliation(s)
- Michelle H Cameron
- Department of Neurology, Oregon Health & Science University, Portland, Oregon 97239, USA.
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Orsini M, De Freitas MRG, Presto B, Mello MP, Reis CHM, Silveira V, Silva JG, Nascimento OJM, Leite MAA, Pulier S, Sohler MP. Guideline for Neuromuscular Rehabilitation in Guillain-Barré Syndrome. ACTA ACUST UNITED AC 2001. [DOI: 10.34024/rnc.2010.v18.8443] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Introduction. Originally described by Landry in 1859 and Guillain, Barré and Strohl in 1916, Guillain-Barré Syndrome (GBS) is the most common cause of acute neuromuscular paralysis selflimited in developed countries. The annual incidence of GBS is 1.5 per 100,000. Although it had a favorable prognosis (“maladie bénigne et spontanément curable”) it’s mortality rate is about 5% and 10% of patients remaining severely disabled one year after neurological onset. Specialist teams, intensive care and rehabilitation are essential for patient management and should be provided in appropriate hospital units. Objective. To guide the health professionals about the utilization of the physical and respiratory techniques in patients with GBS, as well as it’s indication. Method. Update of articles about GBS and Rehabilitation, on the last years of the data bases Bireme, ScienceDirect, PubMed and SciELO. Conclusion. There is currently no consensus on the management of these patients in the acute, sub-acute and chronic settings. Many of them are being discharged without access to rehabilitation services. Our results suggest that the rehabilitation makes a measurable and significant difference and should be available to all patients with GBS.
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