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Degens H, Paudyal A, Kwakkel G, Slevin M, Maas H. Stroke-induced excess in capillarization relative to oxidative capacity in rats is muscle specific. Physiol Rep 2024; 12:e16153. [PMID: 39016169 PMCID: PMC11253024 DOI: 10.14814/phy2.16153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Revised: 07/08/2024] [Accepted: 07/08/2024] [Indexed: 07/18/2024] Open
Abstract
Stroke is not only associated with muscle weakness, but also associated with reduced muscle fatigue resistance and reduced desaturation during exercise that may be caused by a reduced oxidative capacity and/or microvasculature. Therefore, the objective of the present study was to determine the effects of stroke on muscle mass, fiber size and shape, capillarization and oxidative capacity of the rat m. extensor carpi radialis (ECR) and m. flexor carpi ulnaris (FCU) after a photothrombotic stroke in the forelimb region of the primary sensorimotor cortex. The main observation of the present study was that 4 weeks after induction of stroke there were no significant changes in muscle fiber size and shape. Although there was no significant capillary rarefaction, there was some evidence for remodeling of the capillary bed as reflected by a reduced heterogeneity of capillary spacing (p = 0.006) that may result in improved muscle oxygenation. In the ECR, but not in the FCU, this was accompanied by reduction in muscle fiber oxidative capacity as reflected by reduced optical density of sections stained for succinate dehydrogenase (p = 0.013). The reduced oxidative capacity and absence of significant capillary rarefaction resulted in a capillary to fiber ratio per unit of oxidative capacity that was higher after stroke in the ECR (p = 0.01), but not in the FCU. This suggests that at least during the early stages, stroke is not necessarily accompanied by muscle fiber atrophy, and that stroke-induced reductions in oxidative capacity resulting in relative excess of capillarization are muscle specific.
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Affiliation(s)
- Hans Degens
- Department of Life SciencesManchester Metropolitan UniversityManchesterUK
- Institute of Sport Science and InnovationsLithuanian Sports UniversityKaunasLithuania
| | - Arjun Paudyal
- Department of Life SciencesManchester Metropolitan UniversityManchesterUK
- Department of Human Movement Sciences, Faculty of Behavioural and Movement SciencesAmsterdam Movement Sciences, Vrije Universiteit AmsterdamAmsterdamThe Netherlands
| | - Gert Kwakkel
- Department of Rehabilitation MedicineAmsterdam Movement Sciences, Amsterdam Neuroscience, Amsterdam UMC, Vrije Universiteit AmsterdamAmsterdamThe Netherlands
- Department of Physical Therapy and Human Movement Sciences, Feinberg School of MedicineNorthwestern UniversityChicagoIllinoisUSA
- Department of NeurorehabilitationAmsterdam Rehabilitation Research CentreAmsterdamThe Netherlands
| | - Mark Slevin
- Department of Life SciencesManchester Metropolitan UniversityManchesterUK
- The George Emil Palade University of Medicine, Pharmacy, Science, and Technology of Targu MuresTargu MuresTransylvaniaRomania
| | - Huub Maas
- Department of Human Movement Sciences, Faculty of Behavioural and Movement SciencesAmsterdam Movement Sciences, Vrije Universiteit AmsterdamAmsterdamThe Netherlands
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Tanaka S, Yamauchi K, Hayashi Y, Kumagae K, Goto K, Harayama E, Arakawa S. Factors influencing the reduction in quadriceps muscle thickness in the paretic limbs of patients with acute stroke. Clin Nutr ESPEN 2024; 60:173-178. [PMID: 38479907 DOI: 10.1016/j.clnesp.2024.01.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 12/08/2023] [Accepted: 01/16/2024] [Indexed: 04/13/2024]
Abstract
BACKGROUND & AIMS Muscle atrophy is an early event that occurs after stroke, but there are few reports on the changes in skeletal muscle thickness in acute stroke. This study investigated the factors contributing to reduced muscle thickness in patients with acute stroke. METHODS In total, 51 patients with stroke and the National Institute of the Health Stroke Scale (NIHSS) > 3 were included in our study. They were admitted to our hospital between July 2017 and May 2020. The quadriceps muscle thickness was measured with an ultrasound device within 2 days after admission and 14 days later. The collected data included age, sex, body mass index, stroke type, neuromuscular electrical stimulation, NIHSS, serum albumin at admission, start of enteral nutrition, Functional Oral Intake Scale (FOIS), start of mobilization and ambulation, number of physical and occupational therapy units, C-reactive protein at admission and whether surgery had been performed. These data were retrospectively retrieved from medical documents. A dietician calculated energy intake, protein intake, and energy adequacy. Multiple regression analysis was used to identify the factors associated with reduced quadriceps muscle thickness. The independent variables were NIHSS, date of start of enteral feeding, protein intake, FOIS, date of mobilization, and date of start of ambulation training. RESULTS The rate of change in quadriceps muscle thickness of the paretic limb was -15.3 % (interquartile range, -46.1-14.8 %). Multiple regression analysis showed that the factors responsible for the decrease in muscle thickness on the paretic side were FOIS (β: 0.376; 95 % Cl, 0.999 to 4.541) and the start date of ambulation (β: -0.378; 95 % Cl, -2.575 to -0.543), with a multiple correlation coefficient of 0.456. CONCLUSION The FOIS and the start date of ambulation after acute stroke were related to the rate of reduction in muscle thickness on the paretic side.
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Affiliation(s)
- Shota Tanaka
- Department of Rehabilitation, Steel Memorial Yawata Hospital, 1-1-1 Harunomachi, Yahata Higashi Ward, Kitakyushu City, Fukuoka, Japan.
| | - Kota Yamauchi
- Department of Rehabilitation, Steel Memorial Yawata Hospital, 1-1-1 Harunomachi, Yahata Higashi Ward, Kitakyushu City, Fukuoka, Japan.
| | - Yuri Hayashi
- Department of Rehabilitation, Kyushu University Hospital, 3-1-1, Maidashi, Higashi Ward, Fukuoka City, Fukuoka, Japan.
| | - Kenichi Kumagae
- Department of Rehabilitation, Steel Memorial Yawata Hospital, 1-1-1 Harunomachi, Yahata Higashi Ward, Kitakyushu City, Fukuoka, Japan.
| | - Kei Goto
- Department of Rehabilitation, Steel Memorial Yawata Hospital, 1-1-1 Harunomachi, Yahata Higashi Ward, Kitakyushu City, Fukuoka, Japan.
| | - Eisei Harayama
- Department of Rehabilitation, Steel Memorial Yawata Hospital, 1-1-1 Harunomachi, Yahata Higashi Ward, Kitakyushu City, Fukuoka, Japan.
| | - Shuji Arakawa
- Department of Cerebrovascular Medicine, Stroke Center, Steel Memorial Yawata Hospital, 1-1-1 Harunomachi, Yahata Higashi Ward, Kitakyushu City, Fukuoka, Japan.
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Erdoğan MŞ, Arpak ES, Keles CSK, Villagra F, Işık EÖ, Afşar N, Yucesoy CA, Mur LAJ, Akanyeti O, Saybaşılı H. Biochemical, biomechanical and imaging biomarkers of ischemic stroke: Time for integrative thinking. Eur J Neurosci 2024; 59:1789-1818. [PMID: 38221768 DOI: 10.1111/ejn.16245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 12/12/2023] [Accepted: 12/16/2023] [Indexed: 01/16/2024]
Abstract
Stroke is one of the leading causes of adult disability affecting millions of people worldwide. Post-stroke cognitive and motor impairments diminish quality of life and functional independence. There is an increased risk of having a second stroke and developing secondary conditions with long-term social and economic impacts. With increasing number of stroke incidents, shortage of medical professionals and limited budgets, health services are struggling to provide a care that can break the vicious cycle of stroke. Effective post-stroke recovery hinges on holistic, integrative and personalized care starting from improved diagnosis and treatment in clinics to continuous rehabilitation and support in the community. To improve stroke care pathways, there have been growing efforts in discovering biomarkers that can provide valuable insights into the neural, physiological and biomechanical consequences of stroke and how patients respond to new interventions. In this review paper, we aim to summarize recent biomarker discovery research focusing on three modalities (brain imaging, blood sampling and gait assessments), look at some established and forthcoming biomarkers, and discuss their usefulness and complementarity within the context of comprehensive stroke care. We also emphasize the importance of biomarker guided personalized interventions to enhance stroke treatment and post-stroke recovery.
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Affiliation(s)
| | - Esra Sümer Arpak
- Institute of Biomedical Engineering, Boğaziçi University, Istanbul, Turkey
| | - Cemre Su Kaya Keles
- Institute of Biomedical Engineering, Boğaziçi University, Istanbul, Turkey
- Institute of Structural Mechanics and Dynamics in Aerospace Engineering, University of Stuttgart, Stuttgart, Germany
| | - Federico Villagra
- Department of Life Sciences, Aberystwyth University, Aberystwyth, Wales, UK
| | - Esin Öztürk Işık
- Institute of Biomedical Engineering, Boğaziçi University, Istanbul, Turkey
| | - Nazire Afşar
- Neurology, Acıbadem Mehmet Ali Aydınlar University, İstanbul, Turkey
| | - Can A Yucesoy
- Institute of Biomedical Engineering, Boğaziçi University, Istanbul, Turkey
| | - Luis A J Mur
- Department of Life Sciences, Aberystwyth University, Aberystwyth, Wales, UK
| | - Otar Akanyeti
- Department of Computer Science, Llandinam Building, Aberystwyth University, Aberystwyth, UK
| | - Hale Saybaşılı
- Institute of Biomedical Engineering, Boğaziçi University, Istanbul, Turkey
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Kim NY, Jung Y, Hong SB, Ahn JH, Choi SI, Kim YW. Low Phase Angle and Skeletal Muscle Index Increase Hospital-Acquired Infections During Stroke Rehabilitation. J Am Med Dir Assoc 2024; 25:683-689.e1. [PMID: 38163642 DOI: 10.1016/j.jamda.2023.11.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Revised: 11/27/2023] [Accepted: 11/30/2023] [Indexed: 01/03/2024]
Abstract
OBJECTIVES Sarcopenia is common in patients with stroke and may increase the risk of medical complications such as infection. However, assessing sarcopenia in stroke patients with consciousness disturbance, aphasia or severe paralysis is challenging. This study aimed to investigate whether a combined assessment of phase angle (PhA) and skeletal muscle index (SMI), estimated using bioelectrical impedance analysis, was associated with 2 common nosocomial infections, hospital-acquired pneumonia (HAP) and urinary tract infection (UTI), during inpatient stroke rehabilitation. DESIGN Single-center retrospective observational study. SETTINGS AND PARTICIPANTS A total of 1068 patients with stroke admitted to a rehabilitation hospital between January 2016 and September 2019 were analyzed. METHODS The study variables included demographic characteristics, comorbidities, stroke severity, blood chemistry and urine analysis, SMI, and PhA obtained using bioelectrical impedance analysis. Patients were classified as normal, low PhA only, low SMI only, and low PhA + SMI. Multivariate Cox proportional analysis was used to determine the variables associated with HAP and UTI. RESULTS A combination of low PhA + SMI was observed in 429 (40.2%) patients. Over a median follow-up duration of 46 days, HAP occurred in 187 patients (17.5%) and UTI occurred in 155 patients (14.5%). The low PhA + SMI group showed a significantly higher incidence of HAP and UTI than the normal group (32.6% vs 4.6%, P < .001, for HAP; 20.7% vs 6.2%, P < .001, for UTI). In multivariate Cox analyses, low PhA and SMI were associated with significantly higher rates of HAP [hazard ratio (HR) 3.36, 95% CI 1.796-6.304, P < .001] and UTI (HR 1.71, 95% CI 1.002-2.947, P < .05) after adjusting for confounding variables. CONCLUSIONS AND IMPLICATIONS Combination of low PhA + SMI was independently associated with a higher risk of HAP and UTI in stroke patients who underwent inpatient rehabilitation. Measuring PhA and SMI using bioelectrical impedance analysis might be helpful in establishing care plans in these population.
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Affiliation(s)
- Na Young Kim
- Department of Rehabilitation Medicine, Yongin Severance Hospital, Yonsei University College of Medicine, Yongin, Republic of Korea.
| | - Yusang Jung
- Department and Research Institute of Rehabilitation Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Seung Been Hong
- Department of Physical Medicine and Rehabilitation, National Health Insurance Service Ilsan Hospital, Goyang, Republic of Korea
| | - Jeong Hyeon Ahn
- Department and Research Institute of Rehabilitation Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Seung Ick Choi
- Department of Rehabilitation Medicine, Yongin Severance Hospital, Yonsei University College of Medicine, Yongin, Republic of Korea
| | - Yong Wook Kim
- Department and Research Institute of Rehabilitation Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea.
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Li M, Yin Y, Qin D. Treadmill training impacts the skeletal muscle molecular clock after ischemia stroke in rats. Heliyon 2024; 10:e27430. [PMID: 38509905 PMCID: PMC10951531 DOI: 10.1016/j.heliyon.2024.e27430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Revised: 02/27/2024] [Accepted: 02/28/2024] [Indexed: 03/22/2024] Open
Abstract
Objective Stroke is frequently associated with muscle mass loss. Treadmill training is considered the most effective treatment for sarcopenia. Circadian rhythms are closely related to exercise and have been extensively studied. The skeletal muscle has its molecular clock genes. Exercise may regulate skeletal muscle clock genes. This study evaluated the effects of early treadmill training on the skeletal muscle molecular clock machinery in rats with stroke and determined the relationship of these changes with exercise-induced improvements in skeletal muscle health. Materials and methods Overall, 168 Sprague-Dawley rats were included in this study. We established an ischemic stroke rat model of sarcopenia. Finally, 144 rats were randomly allocated to four groups (36 per group): normal, sham, middle cerebral artery occlusion, and training. Neurological scores, rotating rod test, body weight, muscle circumference, wet weight, and hematoxylin-eosin staining were assessed. Twenty-four rats were used for transcriptome sequencing. Gene and protein expressions of skeletal muscles, such as brain muscle arnt-like 1, period 1, and period 2, were measured by quantitative real-time polymerase chain reaction and enzyme-linked immunosorbent assays. Results Neurological function scores and rotating rod test results improved after treadmill training. Nine differentially expressed genes were identified by comparing the sham group with the hemiplegic side of the model group. Seventeen differentially expressed genes were identified between the hemiplegic and non-hemiplegic sides. BMAL1, PER1, and PER2 mRNA levels increased on both sides after treadmill training. BMAL1 expression increased, and PER1 expression decreased on both sides, whereas PER2 expression decreased on the hemiplegic side but increased on the non-hemiplegic side. Conclusion Treadmill training can mitigate muscle loss and regulate skeletal muscle clock gene expression following ischemic stroke. Exercise affects the hemiplegic side and has a positive regulatory effect on the non-hemiplegic side.
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Affiliation(s)
- Mai Li
- Department of Rehabilitation Medicine, The Second Affiliated Hospital of Kunming Medical University, No. 374, Fengning Street, Dianmian Road, 650101, Kunming, China
| | - Yong Yin
- Department of Rehabilitation Medicine, The Affiliated Hospital of Yunnan University, No. 176, Qingnian Road, 650021, Kunming, China
| | - Dongdong Qin
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, No. 1076 Yuhua Road, Chenggong District, 650500, Kunming, China
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Yamamoto M, Nozoe M, Ikeji R, Seike H, Yoshida Y, Shomoto K. Anorexia assessment using the Simplified Nutritional Appetite Questionnaire and its association with activities of daily living in patients with stroke. Nutrition 2024; 117:112238. [PMID: 37924625 DOI: 10.1016/j.nut.2023.112238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Revised: 09/12/2023] [Accepted: 09/21/2023] [Indexed: 11/06/2023]
Abstract
OBJECTIVE This study aimed to validate the assessment of anorexia in patients with acute stroke using the Simplified Nutritional Appetite Questionnaire. METHODS This cross-sectional observational study assessed appetite using the Simplified Nutritional Appetite Questionnaire in patients with acute stroke at discharge from an acute care hospital. Additionally, the relationship between the Simplified Nutritional Appetite Questionnaire and Mini Nutritional Assessment, Mini Nutritional Assessment - Short Form scores, skeletal muscle mass, muscle strength, and activities of daily living measured using the Functional Independence Measures for the motor domain was investigated. A multiple regression analysis was conducted with the Functional Independence Measure for the motor domain as the dependent variable and the Simplified Nutritional Appetite Questionnaire and other confounding factors as explanatory variables to evaluate the association between the Simplified Nutritional Appetite Questionnaire and functional outcomes. RESULTS Among the 234 patients with stroke analyzed in this study, the median Simplified Nutritional Appetite Questionnaire score was 15 (IQR = 13-16) points. The Simplified Nutritional Appetite Questionnaire score significantly correlated with weight change, Functional Independence Measure for the motor domain, nutritional assessment index, and energy and protein intake. However, no significant differences in body mass index, muscle mass, or muscle strength were observed. In the multiple regression analysis adjusted for confounders, the Simplified Nutritional Appetite Questionnaire score (β = 0.106; P = 0.007) was independently associated with the Functional Independence Measure for the motor domain (adjusted R2 = 0.662). CONCLUSIONS This study's results found a significant correlation between Simplified Nutritional Appetite Questionnaire scores and nutritional status as well as an independent association with functional outcomes in patients with stroke. These findings suggest that the Simplified Nutritional Appetite Questionnaire can be a valuable tool for evaluating anorexia in this patient population.
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Affiliation(s)
- Miho Yamamoto
- Department of Rehabilitation Medicine, Nishiyamato Rehabilitation Hospital, Nara, Japan; Graduate School of Health Sciences, Kio University, Nara, Japan
| | - Masafumi Nozoe
- Department of Physical Therapy, Faculty of Rehabilitation, Kansai Medical University, Osaka, Japan.
| | - Rio Ikeji
- Department of Rehabilitation, Itami Kousei Neurosurgical Hospital, Itami, Japan
| | - Haruka Seike
- Department of Rehabilitation, Itami Kousei Neurosurgical Hospital, Itami, Japan
| | - Yosuke Yoshida
- Department of Rehabilitation, Nara Prefecture Seiwa Medical Center, Sango, Japan
| | - Koji Shomoto
- Graduate School of Health Sciences, Kio University, Nara, Japan
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Kim DH, Cho ES, Park YS, Chang HJ, Park JG, Kim JY, Lee JH. Changes in Lower Extremity Muscle Quantity and Quality in Patients with Subacute Stroke. Ann Rehabil Med 2023; 47:493-501. [PMID: 38037249 PMCID: PMC10767215 DOI: 10.5535/arm.23091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 09/01/2023] [Accepted: 09/27/2023] [Indexed: 12/02/2023] Open
Abstract
OBJECTIVE To analyze the changes in muscle mass and quality with time on the paretic and non-paretic sides in subacute stroke patients and identify correlations between the variation of muscle mass and quality and lower limb functions. METHODS Thirty hemiplegia patients diagnosed with stroke participated in this study. To evaluate poststroke muscle changes, longitudinal measurement of muscle mass and quality was conducted with bilateral lower limbs. The elastic shear modulus was measured using shear wave elastography and muscle thickness (MT) of rectus femoris, vastus intermedius, vastus lateralis (VL), vastus medialis, tibialis anterior, and gastrocnemius (GCM) muscles. Functional evaluation was performed using Berg Balance Scale (BBS), Five Times Sit to Stand Test (FTSST). Follow-up was performed at discharge. The muscle mass and quality were compared according to time. We analyzed whether muscle quantity and quality were related to function. RESULTS MT demonstrated no significant change with time. The elastic shear modulus increased significantly in the paretic VL and GCM muscles and did not change significantly in the muscles on the non-paretic side. Correlation analysis detected that elastic shear modulus in the VL has a cross-sectional negative relationship between BBS and positive relationship between FTSST. There were significant correlation between variation of FTSST and the variation of the elastic shear modulus in VL. CONCLUSION Only paretic VL and GCM muscle quality changed in subacute stroke patients and muscle's property related to lower limb functions. Therefore, the lower extremity requires an approach to muscle quality rather than quantity for subacute stroke patients.
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Affiliation(s)
- Da Hye Kim
- Department of Physical Medicine and Rehabilitation, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Changwon, Korea
| | - Eun Sol Cho
- Department of Physical Medicine and Rehabilitation, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Changwon, Korea
| | - Young Sook Park
- Department of Physical Medicine and Rehabilitation, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Changwon, Korea
| | - Hyun Jung Chang
- Department of Physical Medicine and Rehabilitation, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Changwon, Korea
| | - Jin Gee Park
- Department of Physical Medicine and Rehabilitation, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Changwon, Korea
| | - Jae Yeon Kim
- Department of Physical Medicine and Rehabilitation, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Changwon, Korea
| | - Jeong Hwan Lee
- Department of Physical Medicine and Rehabilitation, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Changwon, Korea
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Aze OD, Ojardias E, Akplogan B, Giraux P, Calmels P. Structural and pathophysiological muscle changes up to one year after post-stroke hemiplegia: a systematic review. Eur J Phys Rehabil Med 2023; 59:474-487. [PMID: 37695037 PMCID: PMC10548887 DOI: 10.23736/s1973-9087.23.07844-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 05/31/2023] [Accepted: 07/17/2023] [Indexed: 09/12/2023]
Abstract
INTRODUCTION Muscle changes after stroke cannot be explained solely on the basis of corticospinal bundle damage. Muscle-specific changes contribute to limited functional recovery but have been poorly characterized. EVIDENCE ACQUISITION We conducted a systematic review of muscular changes occurring at the histological, neuromuscular and functional levels during the first year after the onset of post-stroke hemiplegia. A literature search was performed on PubMed, Embase and CINHAL databases up to November 2022 using a keyword combination comprising cerebral stroke, hemiplegic, atrophy, muscle structure, paresis, skeletal muscle fiber type, motor unit, oxidative stress, strength, motor control. EVIDENCE SYNTHESIS Twenty-seven trial reports were included in the review, out of 12,798 articles screened. Structural modifications described on the paretic side include atrophy, transformation of type II fibers into type I fibers, decrease in fiber diameter and apparent myofilament disorganization from the first week post-stroke up to the fourth month. Reported biochemical changes comprise the abnormal presence of lipid droplets and glycogen granules in the subsarcolemmal region during the first month post-stroke. At the neurophysiological level, studies indicate an early decrease in the number and activity of motor units, correlated with the degree of motor impairment. All these modifications were present to a lesser degree on the non-paretic side. Although only sparse data concerning the subacute stage are available, these changes seem to appear during the first two weeks post-stroke and continue up to the third or fourth month. CONCLUSIONS Considering these early pathophysiological changes on both the paretic and non-paretic sides, it seems crucial to promptly stimulate central and also peripheral muscular activation after stroke through specific rehabilitation programs focused on the maintenance of muscle capacities associated with neurological recovery or plasticity.
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Affiliation(s)
- Oscar D Aze
- Interuniversity Lab of Motricity Biology, Savoie Mont-Blanc University, Jean Monnet Saint-Etienne Universities, CHU Saint-Etienne, Lyon1, Saint-Etienne, France
- Impairments, Adapted Physical Activities and Rehabilitation Research Unit (UR-DAPAR), National Institute of Youth, Physical Education, and Sports, Abomey-Calavi University (INJEPS-UAC), Porto-Novo, Benin
- Service of Physical Medicine and Readaptation, CHU Saint-Etienne, Saint-Etienne, France
| | - Etienne Ojardias
- Service of Physical Medicine and Readaptation, CHU Saint-Etienne, Saint-Etienne, France -
- Inserm UMR-S 1028, Lyon Neuroscience Research Center, Lyon1 and Saint-Etienne Universities, Saint-Etienne, France
| | - Barnabé Akplogan
- Impairments, Adapted Physical Activities and Rehabilitation Research Unit (UR-DAPAR), National Institute of Youth, Physical Education, and Sports, Abomey-Calavi University (INJEPS-UAC), Porto-Novo, Benin
| | - Pascal Giraux
- Service of Physical Medicine and Readaptation, CHU Saint-Etienne, Saint-Etienne, France
- Inserm UMR-S 1028, Lyon Neuroscience Research Center, Lyon1 and Saint-Etienne Universities, Saint-Etienne, France
| | - Paul Calmels
- Interuniversity Lab of Motricity Biology, Savoie Mont-Blanc University, Jean Monnet Saint-Etienne Universities, CHU Saint-Etienne, Lyon1, Saint-Etienne, France
- Service of Physical Medicine and Readaptation, CHU Saint-Etienne, Saint-Etienne, France
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Kim NY, Choi YA. Obesity Impairs Functional Recovery of Older Stroke Patients with Possible Sarcopenia: A Retrospective Cohort Study. J Clin Med 2023; 12:jcm12113676. [PMID: 37297871 DOI: 10.3390/jcm12113676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 05/16/2023] [Accepted: 05/23/2023] [Indexed: 06/12/2023] Open
Abstract
The functional prognosis of older patients with coexisting obesity and possible sarcopenia remains uncertain following acute stroke. This study aimed to determine whether coexisting obesity independently affects activities of daily living (ADL) and balance ability at discharge in older patients with possible sarcopenia admitted to a stroke rehabilitation ward. A total of 111 patients aged 65 years or older with possible sarcopenia were included, of whom 36 (32.4%) had coexisting obesity. Possible sarcopenia was diagnosed based on low handgrip strength without reduced muscle mass, while obesity was determined by body fat percentage (≥25% for men, ≥30% for women). Multivariate linear regression analysis revealed that compared to patients without obesity, patients with obesity had a higher likelihood of poorer ADL (b = -0.169; p = 0.02) and balance ability (b = -0.14; p = 0.04) performance at discharge following a 4-week period of inpatient rehabilitation. These findings suggest that obesity may be a modifiable risk factor in the rehabilitation of older patients with possible sarcopenia and should be considered in the assessment of decreased muscle strength.
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Affiliation(s)
- Na Young Kim
- Department of Rehabilitation Medicine, Yongin Severance Hospital, Yonsei University College of Medicine, Yongin 16995, Republic of Korea
| | - Young-Ah Choi
- Department of Rehabilitation Medicine, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
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Fu H, Jiang Y, Lv J, Huang Y, Gai Z, Liu Y, Lee PS, Xu H, Wu D. Multilayer Dielectric Elastomer with Reconfigurable Electrodes for Artificial Muscle. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2206094. [PMID: 36658692 PMCID: PMC10037966 DOI: 10.1002/advs.202206094] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 12/08/2022] [Indexed: 06/17/2023]
Abstract
High-performance multilayer dielectric elastomer actuators (DEAs) are well-positioned to overcome the insufficient output force and energy density as artificial muscles. However, due to the fabrication process, the multilayer DEAs with nonmodifiable structures often suffer from the limitation of short lifespans and scalable preparation. Herein, reusable multilayer DEAs with the detachable and reconfigurable structure are fabricated. This is achieved by realizing scalable compliant electrodes using the continuous spatial confining forced network assembly (CSNA) method and combining the vacuum lamination (VL) approach to have good attachability and detachability with the VHB dielectric elastomer. The flexible roller-based CSNA method is used to prepare the large area compliant electrodes composed of α, ω-dihydroxy polydimethylsiloxane and electrically conductive nanoparticles. The fabricated electrodes can continuously work over 10 000 cycles at 40% strained stretching and maintain smooth surfaces to construct multilayer DEAs. Moreover, owing to the detachable configuration of the DEAs, the electrodes can also be recovered and reused for building new actuators. The lower limb assistive device is demonstrated by detachable multilayer spring roll DEAs, achieving approximately 3.1 degrees of flexion and extension movement of knee models under a voltage of 7 kV. The detachable and reconfigurable multilayer DEAs shed new light on the applications of wearable assistive devices.
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Affiliation(s)
- Hongbo Fu
- College of Mechanical and Electrical EngineeringBeijing University of Chemical TechnologyBeijing100029China
| | - Yong Jiang
- College of Mechanical and Electrical EngineeringBeijing University of Chemical TechnologyBeijing100029China
| | - Jian Lv
- School of Materials Science and EngineeringNanyang Technological UniversitySingapore639798Singapore
| | - Yao Huang
- College of Mechanical and Electrical EngineeringBeijing University of Chemical TechnologyBeijing100029China
| | - Zipeng Gai
- College of Mechanical and Electrical EngineeringBeijing University of Chemical TechnologyBeijing100029China
| | - Ying Liu
- College of Mechanical and Electrical EngineeringBeijing University of Chemical TechnologyBeijing100029China
| | - Pooi See Lee
- School of Materials Science and EngineeringNanyang Technological UniversitySingapore639798Singapore
- Singapore‐HUJI Alliance for Research and Enterprise (SHARE)Smart Grippers for Soft Robotics (SGSR)Campus for Research Excellence and Technological Enterprise (CREATE)Singapore138602Singapore
| | - Hong Xu
- College of Mechanical and Electrical EngineeringBeijing University of Chemical TechnologyBeijing100029China
- State Key Laboratory of Organic‐Inorganic CompositesBeijing University of Chemical TechnologyBeijing100029China
| | - Daming Wu
- College of Mechanical and Electrical EngineeringBeijing University of Chemical TechnologyBeijing100029China
- State Key Laboratory of Organic‐Inorganic CompositesBeijing University of Chemical TechnologyBeijing100029China
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11
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Gungor L, Arsava EM, Guler A, Togay Isikay C, Aykac O, Batur Caglayan HZ, Kozak HH, Aydingoz U, Topcuoglu MA. Determinants of in-hospital muscle loss in acute ischemic stroke - Results of the Muscle Assessment in Stroke Study (MASS). Clin Nutr 2023; 42:431-439. [PMID: 36805095 DOI: 10.1016/j.clnu.2023.01.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 01/10/2023] [Accepted: 01/23/2023] [Indexed: 02/05/2023]
Abstract
BACKGROUND & AIMS There is a change in the mass and composition of paretic and non-paretic skeletal muscles in the chronic phase of stroke. The multi-center, prospective, and observational Muscle Assessment in Stroke Study (MASS) was performed to evaluate the degree of muscle loss during the in-hospital acute stroke setting and determine factors contributing to this loss. METHODS Acute dysphagic ischemic stroke patients (n = 107) admitted to neuro-intensive care units were evaluated by computed tomography on days 1 and 14 after admission to determine the cross-sectional muscle area (CSMA) at the level of the mid-humerus, mid-thigh, and third lumbar vertebra. The percentage change in CSMA and variables associated with this change were evaluated by univariate and multivariate analyses. RESULTS There were significant reductions in CSMA in all the muscle groups analyzed; the most prominent change was observed in the arms (both: 14.2 ± 10.7%; paretic: 17.7 ± 11.6%; non-paretic: 10.1 ± 12.5%), followed by the muscles in the legs (both: 12.4 ± 8.7%; paretic: 12.9 ± 9.9%; non-paretic: 12.0 ± 9.3%) and L3-vertebra level (5.6 ± 9.8%) (P < 0.001 for all). Higher calorie (r = -0.378, P < 0.001) or protein (r = -0.352, P < 0.001) intake was negatively associated with the decrease in CSMA of upper extremities. A substantial protein (≥0.4 g/kg/d) or calorie (≥5 kcal/kg/d) gap between targeted or actual intake was related to a larger decrease in CSMA in all the anatomic regions (P ≤ 0.05 for all). Other significant predictors of muscle loss included history of diabetes mellitus, male sex, higher BMI, in-hospital infections, and the necessity for invasive mechanical ventilation. CONCLUSIONS There is a considerable degree of loss in the global muscle mass in acute ischemic stroke patients over a two-week period. Along with several factors, falling significantly behind the daily protein or calorie targets was related to the decrease in the muscle area. TRIAL REGISTRATION INFORMATION: clinicaltrials.gov identifier NCT03825419.
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Affiliation(s)
- Levent Gungor
- Department of Neurology, Ondokuz Mayis University, Samsun, Turkey
| | | | - Ayse Guler
- Department of Neurology, Ege University, Izmir, Turkey
| | | | - Ozlem Aykac
- Department of Neurology, Eskisehir Osmangazi University, Eskisehir, Turkey
| | | | | | - Ustun Aydingoz
- Department of Radiology, Hacettepe University, Ankara, Turkey
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12
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Harjpal P, Qureshi MI, Kovela RK, Jain M. Efficacy of Bilateral Lower-Limb Training Over Unilateral Lower-Limb Training To Reeducate Balance and Walking in Post-Stroke Survivors: A Randomized Clinical Trial. Cureus 2022; 14:e30748. [DOI: 10.7759/cureus.30748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Accepted: 10/27/2022] [Indexed: 11/07/2022] Open
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13
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Wei HQ, Gan M, Li GY, Ma SH, Liu JH. Quantitative Evaluation of Biceps Brachii Muscle by Shear Wave Elastography in Stroke Patients. Ther Clin Risk Manag 2022; 18:879-887. [PMID: 36212049 PMCID: PMC9541677 DOI: 10.2147/tcrm.s361664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 07/11/2022] [Indexed: 11/23/2022] Open
Abstract
Purpose The present study aimed to investigate the differences in muscle size and shear wave speed (SWS) values of biceps brachii muscle (BBM) between stroke survivors and healthy controls. Methods This study comprised 61 stroke survivors and 24 healthy subjects, examined at Guangzhou First People's Hospital within one year. Each participant underwent ultrasonic examinations for recording some specific measurement indicators, including muscle thickness, cross-sectional area (CSA), and shear wave speed (SWS) of BBM. The muscular tension of the paretic arm was scored using the modified Ashworth scale (MAS). These above-mentioned indexes were compared between stroke survivors and healthy controls. Also, the correlations among SWS and MAS scores were assessed. Results When the lifting arm angle was set for 45°, the CSA and muscle thickness of BBM were obviously decreased in the paretic arms of stroke subjects compared to the non-paretic arms as well as the arms of healthy controls. Moreover, the paretic arms had obviously higher SWS than the non-paretic arms and the healthy arms at 45° or 90°. When the angles of paretic arms were lifted at 90° and 45°, respectively, a positive correlation was established between MAS and SWS. Conclusion Ultrasonic examination assessing muscle thickness, CSA, and SWS of the BBM could be used as a means of assessment of the paretic arms of stroke survivors.
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Affiliation(s)
- Hong-Qin Wei
- Department of Ultrasound, Guangzhou First People’s Hospital, Guangzhou, Guandong, People’s Republic of China
| | - Man Gan
- Department of Ultrasound, Guangzhou First People’s Hospital, Guangzhou, Guandong, People’s Republic of China
| | - Guo-Yan Li
- Department of Rehabilitation Medicine, Guangzhou First People’s Hospital, Guangzhou, Guandong, People’s Republic of China
| | - Sui-Hong Ma
- Department of Ultrasound, Guangzhou First People’s Hospital, Guangzhou, Guandong, People’s Republic of China,Correspondence: Sui-Hong Ma; Jian-Hua Liu, Tel +86 13824420620; +86 13622888381, Fax +86 020 81332620, Email ;
| | - Jian-Hua Liu
- Department of Ultrasound, Guangzhou First People’s Hospital, Guangzhou, Guandong, People’s Republic of China
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14
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Sawtelle M, Roddey T, Ellison J, Tseng SC. Gluteus Maximus Muscle Activation Characteristics During a Chair-Rise in Adults With Chronic Stroke. J Neurol Phys Ther 2022; 46:270-280. [PMID: 35561104 DOI: 10.1097/npt.0000000000000404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND AND PURPOSE A successful chair-rise is an important indicator of functional independence post-stroke. Lower extremity electromyographic analyses provide a basis for muscle activation from which clinical intervention protocols may be derived. Gluteus maximus activation during the chair-rise has not been thoroughly researched in the chronic stroke population. This study investigated the magnitude and onset of gluteus maximus activation during the chair-rise comparing adults post-stroke with healthy controls. METHODS In this cross-sectional study, adults with chronic stroke (n = 12) and healthy controls (n = 12) completed 4 natural-speed chair-rise trials. Magnitude and onset of bilateral gluteus maximus activation were measured during the movement with secondary comparative data from biceps femoris and vastus lateralis muscles. Kinetic and kinematic measurements were used to quantify chair-rise phases and movement cycle duration. RESULTS Significant decreases in paretic ( P = 0.002), and nonparetic ( P = 0.001) gluteus maximus magnitudes were noted post-stroke compared with ipsilateral extremities of healthy adults. Significant gluteus maximus onset delays were noted in paretic extremities compared with nonparetic extremities post-stroke ( P = 0.009) that were not apparent in comparative muscles. Similar onset times were noted when comparing the paretic extremity post-stroke to the ipsilateral extremity of healthy controls ( P = 0.714) despite prolonged movement cycle durations in those with chronic stroke ( P = 0.001). No onset delays were evident in the biceps femoris ( P = 0.72) or vastus lateralis ( P = 0.338) muscles. DISCUSSION AND CONCLUSIONS Despite apparent unilateral muscle weakness post-stroke, bilateral decreases in gluteus maximus activation magnitudes and compounding onset deficits of the paretic extremity were observed during chair-rising. Further research is needed to determine whether interventions maximizing bilateral activation magnitudes and improving temporal activation congruency during chair-rising will carry over to functional gainsVideo Abstract available for more insights from the authors (see the Video, Supplemental Digital Content 1, available at: http://links.lww.com/JNPT/A387 ).
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Affiliation(s)
- Michelle Sawtelle
- Department of Public Health and Community Medicine, Doctor of Physical Therapy Phoenix Program, Tufts University, Phoenix, Arizona (M.S.); Institute of Health Sciences, School of Physical Therapy, Texas Woman's University, Houston (T.R., J.E.); and Department of Physical Therapy, School of Health Professions, University of Texas Medical Branch, Galveston (S.C.T.)
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15
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Harjpal P, Qureshi MI, Kovela RK, Jain M. Bilateral Lower Limb Training for Post-stroke Survivors: A Bibliometric Analysis. Cureus 2022; 14:e29615. [PMID: 36321041 PMCID: PMC9603067 DOI: 10.7759/cureus.29615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 09/26/2022] [Indexed: 11/27/2022] Open
Abstract
Stroke is one of the most disabling conditions affecting the middle-aged population all around the world. This study aims to explore the rehabilitation of stroke patients using bibliometric analysis, which includes statistical analysis of recent articles, books, and other kinds of publications, to assess scientific output and determine the significance of scientific investigations in terms of both quality and quantity. In this study, an analysis of global trends in research in bilateral lower limb training for training balance and walking for patients in the subacute stage post-stroke between 1988 and 2021 was done. All the articles were obtained from PubMed databases. CiteSpace software was used to analyze the relationship between publications and country, journals, institutions, authors, references, and the keywords used. A total of 160 publications were included in the analysis. There was a tremendous increase in the research of physiotherapy intervention in patients who had residual disability post-stroke with a publication rate of 7.1 articles per year of publications. The use of the sophisticated PubMed database to extract articles allowed for a thorough and powerful bibliometric analysis of stroke rehabilitation research published between 1988 and 2020. In general, the number of studies on bilateral training has increased in recent decades. This historical overview of rehabilitation for post-stroke survivors will serve as a valuable starting point for future study into possible collaborators, focus issues, and trends. This bibliometric analysis highlights the potential value of exercise therapy for stroke survivors in creating more effective hemiplegia rehabilitation programs. This research may encourage the use of strengthening in the therapeutic therapy of hemiplegia balance. The groundwork will be laid for future research on strengthening stroke to be organized and given top priority.
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16
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Kong KH, Shuen-Loong T, Tay MRJ, Lui WL, Rajeswaran DK, Kim J. Ultrasound Assessment of Changes in Muscle Architecture of the Brachialis Muscle After Stroke—A Prospective Study. Arch Rehabil Res Clin Transl 2022; 4:100215. [PMID: 36123972 PMCID: PMC9482034 DOI: 10.1016/j.arrct.2022.100215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Objective To investigate changes in ultrasound-derived muscle architecture parameters of the brachialis and correlations in patients with subacute stroke. Design Prospective longitudinal observational study. Setting Tertiary inpatient rehabilitation center. Participants Fifty adult patients (N=50) who were recruited within the first month poststroke. The patients had a mean age of 57.2±12.3 years and 68.0% were male. The majority of patients had significant upper limb weakness with a low mean Motricity Index of 18.5±24.7 and median elbow flexor strength of grade 0. Intervention Not applicable. Main Outcome Measures Ultrasound of the intact and hemiparetic brachialis was performed at 3-time intervals: within 1 month of stroke onset and at 1 and 6 months after first assessment. Clinical variables captured included upper limb motor power and elbow flexor spasticity. Results Compared to the intact brachialis, there was reduced muscle thickness (1.93 cm vs 2.07 cm, 1.86 cm vs 2.08 cm, 1.85 cm vs 2.05 cm; P=.022) and increased echo intensity (63.3 arbitrary units [AU] vs 56.8 AU, 69.4 AU vs 56.6 AU, 77.4 AU vs 58.2 AU; P<.001) in the hemiparetic brachialis at all assessment intervals (baseline, 1 month, 6 months). Reduction in muscle mass was greater in older patients, with the correlation coefficient ranging from −0.30 (P=.03) at baseline to −0.50 (P<.001) at 6 months. Presence of elbow flexor spasticity at 1-month assessment interval was associated with lower muscle mass reduction (1.93 cm vs 1.74 cm; P=.017), lower echo intensity (65.1 AU vs 75.1 AU; P=.023), and longer fascicle lengths (12.92 cm vs 9.83 cm; P=.002). Conclusions Changes including decreased muscle thickness and increased echo intensity of the hemiparetic brachialis were noted over time. Elbow flexor spasticity at 1-month assessment interval appears to mitigate against these changes.
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17
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Abbasian S, Ravasi AA, Haghighi AH, Aydin S, Delbari A, Aydın S. Preconditioning intensive training ameliorates reduction of transcription biofactors of PGC1α-pathway in paretic muscle due to cerebral ischemia. Biotech Histochem 2022; 98:46-53. [PMID: 35892280 DOI: 10.1080/10520295.2022.2098535] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
Abstract
Exercise training increases fibronectin type III domain-containing protein 5 (FNDC5/irisin) via the peroxisome proliferator-activated receptor gamma coactivator 1-alpha (PGC1α)-pathway. The PGC1α pathway induced FNDC5/irisin changes in response to exercise training and ischemic stroke are not entirely understood. We investigated the relation of the PGC-1α/FNDC5/irisin pathway to exercise training and to the pathophysiology of ischemic stroke in paretic muscles of stroke-induced rat models. We induced cerebral ischemia following completion of high-intensity interval training (HIIT) to evaluate PGC1α-pathway biofactors in paretic muscles. To define the underlying molecular mechanisms for improvement in paretic muscles following cerebral ischemia, we evaluated PCG-1α-pathway factors using immunofluorescence tracking and enzyme-linked immunosorbent assay (ELISA) immunoassay. We found that HIIT for 3 weeks produced increased expression and release of PGC-1α-pathway biomarkers in both the serum and paretic muscle of stroke-induced rats. We also found a close relation between the expression of PCG-1α-pathway factors in skeletal muscle and their concentration in blood. We found that PGC-1α-pathway biomarkers cause irisin up-regulation following induction of cerebral ischemia. The reduction in neurofunctional deficits following increased PGC-1α-pathway biomarkers suggests that these factors may act as markers of improvement in paretic muscle healing following cerebral ischemia.
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Affiliation(s)
| | | | | | | | - Ahmad Delbari
- University of Social Welfare and Rehabilitation Sciences, Iran
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18
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Vanzella LM, Lawand R, Shuaib M, Oh P, Corbett D, Marzolini S. Validity of Bioelectric Impedance in Relation to Dual-Energy X-Ray Absorptiometry for Measuring Baseline and Change in Body Composition After an Exercise Program in Stroke. J Strength Cond Res 2022; 36:3273-3279. [DOI: 10.1519/jsc.0000000000004287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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19
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Stewart CE, Branyan TE, Sampath D, Sohrabji F. Sex Differences in the Long-Term Consequences of Stroke. Curr Top Behav Neurosci 2022; 62:287-308. [PMID: 35332459 DOI: 10.1007/7854_2022_311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Stroke is the fifth leading cause of death and as healthcare intervention improves, the number of stroke survivors has also increased. Furthermore, there exists a subgroup of younger adults, who suffer stroke and survive. Given the overall improved survival rate, bettering our understanding of long-term stroke outcomes is critical. In this review we will explore the causes and challenges of known long-term consequences of stroke and if present, their corresponding sex differences in both old and young survivors. We have separated these long-term post-stroke consequences into three categories: mobility and muscle weakness, memory and cognitive deficits, and mental health and mood. Lastly, we discuss the potential of common preclinical stroke models to contribute to our understanding of long-term outcomes following stroke.
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Affiliation(s)
- Courtney E Stewart
- Women's Health in Neuroscience Program, Neuroscience and Experimental Therapeutics, Texas A&M Health Science Center College of Medicine, Bryan, TX, USA
| | - Taylor E Branyan
- Women's Health in Neuroscience Program, Neuroscience and Experimental Therapeutics, Texas A&M Health Science Center College of Medicine, Bryan, TX, USA.,Texas A&M Institute for Neuroscience, College Station, TX, USA
| | - Dayalan Sampath
- Women's Health in Neuroscience Program, Neuroscience and Experimental Therapeutics, Texas A&M Health Science Center College of Medicine, Bryan, TX, USA
| | - Farida Sohrabji
- Women's Health in Neuroscience Program, Neuroscience and Experimental Therapeutics, Texas A&M Health Science Center College of Medicine, Bryan, TX, USA. .,Texas A&M Institute for Neuroscience, College Station, TX, USA.
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20
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Park MK, Lee SJ, Choi E, Lee S, Lee J. The Effect of Branched Chain Amino Acid Supplementation on Stroke-Related Sarcopenia. Front Neurol 2022; 13:744945. [PMID: 35359630 PMCID: PMC8963712 DOI: 10.3389/fneur.2022.744945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Accepted: 02/10/2022] [Indexed: 11/24/2022] Open
Abstract
Background Stroke-related sarcopenia is caused by various factors, such as brain damage, systemic catabolic state, skeletal muscle imbalance, and malnutrition. In the long-term care plan after stroke, appropriate rehabilitation strategies to achieve maximum functional improvement and prevent the development of sarcopenia are important. This study has investigated the effect of branched-chain amino acid (BCAA) supplementation on sarcopenia after stroke. We also evaluated the effect of BCAA on functional improvement during the intensive rehabilitation period. Methods Patients with subacute stroke with stroke-related disabilities were enrolled and given dietary supplement powder containing BCAAs for 1 month. These BCAAs were supplied through the nutrition team during feeding time. Patients whose age, sex, and stroke lesions were similar to those of the study group were enrolled in the control group through medical record review. Both groups received personalized intensive inpatient rehabilitation therapy in a single-unit rehabilitation center. All patients' target calories were calculated regularly by the nutritional support team in our institution. Sarcopenia status was evaluated using grip strength and the skeletal muscle index (SMI), which was assessed by dual-energy X-ray absorptiometry (DEXA). The functional status associated with stroke was evaluated every month, including activities of daily living, balance, gait, and swallowing. Results A total of 54 patients were enrolled, with 27 patients in each of the two groups. The study group showed significantly greater improvement in SMI after intervention than the control group. Both groups improved functionally over time, but the improvement in the study group was significantly greater than that in the control group. Univariate analysis revealed that patients with better functional status had a greater SMI with a combination of BCAA supplementation and intensive rehabilitation therapy. Conclusion Our results showed a positive effect of BCAA supplementation on sarcopenia after stroke. We also found that nutritional support helps functional improvement during neurological recovery. These results suggest that comprehensive rehabilitation intervention combined with BCAA supplementation could be a helpful option during the critical period of post-stroke neurological recovery.
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Affiliation(s)
- Min Kyu Park
- Department of Clinical Pharmacology and Therapeutics, College of Medicine, Chungbuk National University Hospital, Cheongju-si, South Korea
| | - Sook Joung Lee
- Department of Physical Medicine and Rehabilitation, Daejeon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
- *Correspondence: Sook Joung Lee
| | - Eunseok Choi
- Department of Physical Medicine and Rehabilitation, Daejeon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Sangjee Lee
- Department of Physical Medicine and Rehabilitation, Daejeon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - JungSoo Lee
- Department of Physical Medicine and Rehabilitation, Daejeon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
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21
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Azzollini V, Dalise S, Chisari C. How Does Stroke Affect Skeletal Muscle? State of the Art and Rehabilitation Perspective. Front Neurol 2022; 12:797559. [PMID: 35002937 PMCID: PMC8733480 DOI: 10.3389/fneur.2021.797559] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 11/29/2021] [Indexed: 12/25/2022] Open
Abstract
Long-term disability caused by stroke is largely due to an impairment of motor function. The functional consequences after stroke are caused by central nervous system adaptations and modifications, but also by the peripheral skeletal muscle changes. The nervous and muscular systems work together and are strictly dependent in their structure and function, through afferent and efferent communication pathways with a reciprocal “modulation.” Knowing how altered interaction between these two important systems can modify the intrinsic properties of muscle tissue is essential in finding the best rehabilitative therapeutic approach. Traditionally, the rehabilitation effort has been oriented toward the treatment of the central nervous system damage with a central approach, overlooking the muscle tissue. However, to ensure greater effectiveness of treatments, it should not be forgotten that muscle can also be a target in the rehabilitation process. The purpose of this review is to summarize the current knowledge about the skeletal muscle changes, directly or indirectly induced by stroke, focusing on the changes induced by the treatments most applied in stroke rehabilitation. The results of this review highlight changes in several muscular features, suggesting specific treatments based on biological knowledge; on the other hand, in standard rehabilitative practice, a realist muscle function evaluation is rarely carried out. We provide some recommendations to improve a comprehensive muscle investigation, a specific rehabilitation approach, and to draw research protocol to solve the remaining conflicting data. Even if a complete multilevel muscular evaluation requires a great effort by a multidisciplinary team to optimize motor recovery after stroke.
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Affiliation(s)
- Valentina Azzollini
- Department of Translational Research and New Technologies in Medicine and Surgery, DS Neurorehabilitation, University of Pisa, Pisa, Italy
| | - Stefania Dalise
- Department of Neurorehabilitation, Pisa University Hospital - Azienda Ospedaliera Universitaria Pisana (AOUP), Pisa, Italy
| | - Carmelo Chisari
- Department of Translational Research and New Technologies in Medicine and Surgery, DS Neurorehabilitation, University of Pisa, Pisa, Italy
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22
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Serial sarcomere number is substantially decreased within the paretic biceps brachii in individuals with chronic hemiparetic stroke. Proc Natl Acad Sci U S A 2021; 118:2008597118. [PMID: 34172565 DOI: 10.1073/pnas.2008597118] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
A muscle's structure, or architecture, is indicative of its function and is plastic; changes in input to or use of the muscle alter its architecture. Stroke-induced neural deficits substantially alter both input to and usage of individual muscles. We combined in vivo imaging methods (second-harmonic generation microendoscopy, extended field-of-view ultrasound, and fat-suppression MRI) to quantify functionally meaningful architecture parameters in the biceps brachii of both limbs of individuals with chronic hemiparetic stroke and in age-matched, unimpaired controls. Specifically, serial sarcomere number (SSN) and physiological cross-sectional area (PCSA) were calculated from data collected at three anatomical scales: sarcomere length, fascicle length, and muscle volume. The interlimb differences in SSN and PCSA were significantly larger for stroke participants than for participants without stroke (P = 0.0126 and P = 0.0042, respectively), suggesting we observed muscle adaptations associated with stroke rather than natural interlimb variability. The paretic biceps brachii had ∼8,200 fewer serial sarcomeres and ∼2 cm2 smaller PCSA on average than the contralateral limb (both P < 0.0001). This was manifested by substantially smaller muscle volumes (112 versus 163 cm3), significantly shorter fascicles (11.0 versus 14.0 cm; P < 0.0001), and comparable sarcomere lengths (3.55 versus 3.59 μm; P = 0.6151) between limbs. Most notably, this study provides direct evidence of the loss of serial sarcomeres in human muscle observed in a population with neural impairments that lead to disuse and chronically place the affected muscle at a shortened position. This adaptation is consistent with functional consequences (increased passive resistance to elbow extension) that would amplify already problematic, neurally driven motor impairments.
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23
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Sánchez N, Winstein CJ. Lost in Translation: Simple Steps in Experimental Design of Neurorehabilitation-Based Research Interventions to Promote Motor Recovery Post-Stroke. Front Hum Neurosci 2021; 15:644335. [PMID: 33958994 PMCID: PMC8093777 DOI: 10.3389/fnhum.2021.644335] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Accepted: 03/30/2021] [Indexed: 01/02/2023] Open
Abstract
Stroke continues to be a leading cause of disability. Basic neurorehabilitation research is necessary to inform the neuropathophysiology of impaired motor control, and to develop targeted interventions with potential to remediate disability post-stroke. Despite knowledge gained from basic research studies, the effectiveness of research-based interventions for reducing motor impairment has been no greater than standard of practice interventions. In this perspective, we offer suggestions for overcoming translational barriers integral to experimental design, to augment traditional protocols, and re-route the rehabilitation trajectory toward recovery and away from compensation. First, we suggest that researchers consider modifying task practice schedules to focus on key aspects of movement quality, while minimizing the appearance of compensatory behaviors. Second, we suggest that researchers supplement primary outcome measures with secondary measures that capture emerging maladaptive compensations at other segments or joints. Third, we offer suggestions about how to maximize participant engagement, self-direction, and motivation, by embedding the task into a meaningful context, a strategy more likely to enable goal-action coupling, associated with improved neuro-motor control and learning. Finally, we remind the reader that motor impairment post-stroke is a multidimensional problem that involves central and peripheral sensorimotor systems, likely influenced by chronicity of stroke. Thus, stroke chronicity should be given special consideration for both participant recruitment and subsequent data analyses. We hope that future research endeavors will consider these suggestions in the design of the next generation of intervention studies in neurorehabilitation, to improve translation of research advances to improved participation and quality of life for stroke survivors.
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Affiliation(s)
- Natalia Sánchez
- Division of Biokinesiology and Physical Therapy, University of Southern California, Los Angeles, CA, United States
| | - Carolee J Winstein
- Division of Biokinesiology and Physical Therapy, University of Southern California, Los Angeles, CA, United States.,Department of Neurology, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
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Kim Y, Kim J, Nam H, Kim HD, Eom MJ, Jung SH, Han N. Ultrasound Imaging of the Trunk Muscles in Acute Stroke Patients and Relations With Balance Scales. Ann Rehabil Med 2020; 44:273-283. [PMID: 32721990 PMCID: PMC7463119 DOI: 10.5535/arm.19125] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Accepted: 10/30/2019] [Indexed: 01/22/2023] Open
Abstract
Objective To examine the correlation between ultrasonographic trunk muscle parameters and balance scales in mild acute stroke patients. Methods A total of 55 stroke patients with hemiparesis and motor power grade ≥4 in the manual motor test were included. The Scale for the Assessment and Rating of Ataxia (SARA), Berg Balance Scale (BBS), Timed Up and Go Test (TUG), and Trunk Control Test (TCT) were used to evaluate patient balance function. Ultrasonographic parameters were measured on both non-paretic and paretic sides of the rectus abdominis, external oblique, internal oblique, transversus abdominis, and erector spinae muscles. Resting thickness and contraction thickness were measured in all muscles, and contractility and contractility ratio were calculated based on measured thicknesses. The differences between paretic and non-paretic muscle parameters, and the correlation between ultrasonographic parameters and balance scales were analyzed. Stroke patients were divided into two groups according to their fall risk. Ultrasonographic measurements between the two groups were compared. Results All muscles’ contraction thickness and contractility were significantly different between paretic and non-paretic sides (p<0.001). Contractility ratios of all trunk muscles showed a significant correlation with SARA, BBS, TUG, and TCT (p<0.05). Contractility ratios of all muscles were significantly different between high- and low-risk fall groups (p<0.05). Conclusion The contractility ratio in stroke patients reflects their balance disturbance and fall risk and it may serve as a new parameter for ultrasound imaging of trunk muscles.
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Affiliation(s)
- Yunho Kim
- Department of Physical Medicine and Rehabilitation, Inje University Busan Paik Hospital, Inje University College of Medicine, Busan, Korea
| | - Jeeyoung Kim
- Department of Physical Medicine and Rehabilitation, Inje University Busan Paik Hospital, Inje University College of Medicine, Busan, Korea
| | - Heesung Nam
- Department of Physical Medicine and Rehabilitation, Inje University Busan Paik Hospital, Inje University College of Medicine, Busan, Korea
| | - Hyun Dong Kim
- Department of Physical Medicine and Rehabilitation, Inje University Busan Paik Hospital, Inje University College of Medicine, Busan, Korea
| | - Mi Ja Eom
- Department of Physical Medicine and Rehabilitation, Inje University Busan Paik Hospital, Inje University College of Medicine, Busan, Korea
| | - Sang Hoon Jung
- Department of Physical Medicine and Rehabilitation, Inje University Busan Paik Hospital, Inje University College of Medicine, Busan, Korea
| | - Nami Han
- Department of Physical Medicine and Rehabilitation, Inje University Busan Paik Hospital, Inje University College of Medicine, Busan, Korea
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Su Y, Yuki M, Otsuki M. Prevalence of stroke-related sarcopenia: A systematic review and meta-analysis. J Stroke Cerebrovasc Dis 2020; 29:105092. [PMID: 32807486 DOI: 10.1016/j.jstrokecerebrovasdis.2020.105092] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 06/12/2020] [Accepted: 06/22/2020] [Indexed: 12/16/2022] Open
Abstract
OBJECTIVES Although the skeletal muscle is the main effector of disability in stroke, evidence on post-stroke skeletal muscle is scarce; especially, the prevalence of stroke-related sarcopenia remains unclear. Thus, we aimed to systematically search the prevalence of sarcopenia in stroke survivors and synthesize pooled estimates of overall prevalence of stroke-related sarcopenia and prevalence stratified by sex, country, time since stroke onset, and diagnostic criteria of sarcopenia. METHODS We performed systematic searches in the MEDLINE, CINAHL, Embase, and Cochrane Library databases. English-language searches to identify included studies were completed August 25, 2019. Meta-analysis of data collected from cross-sectional or observational studies which were reported the prevalence of sarcopenia among stroke participants. All statistical analyses were performed using R version 3.5.2. RESULTS A total of 855 articles were initially identified. Seven articles were included in this study. Total sample size across all included studies was 1695. Three studies were conducted in Japan, 2 in South Korea, 1 in Taiwan, and 1 in the U.S. Four included studies had a cross-sectional design, and 3 were retrospective cohort studies. Four and 3 studies included participants at <1 month and ≥6 months since stroke onset, respectively. The pooled prevalence estimate was 42% (95% confidence interval: 33%-52%), with a substantial heterogeneity (I2=91%). CONCLUSIONS AND IMPLICATIONS Sarcopenia is frequently observed in stroke survivors, and a higher prevalence of sarcopenia is noted during the early phase after stroke. This study would be useful for researchers to design sarcopenia studies in this population. Further prospective longitudinal studies for sarcopenia and their prognostic outcomes in stroke survivors are urgently needed to propose appropriate physical and nutritional strategies in geriatric rehabilitation.
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Affiliation(s)
- Ya Su
- Graduate School of Health Sciences, Hokkaido University, Kita 12, Nishi 5, Kita-ku, Sapporo, Hokkaido 060-0812, Japan
| | - Michiko Yuki
- Faculty of Health Sciences, Hokkaido University, Kita 12, Nishi 5, Kita-ku, Sapporo, Hokkaido 060-0812, Japan.
| | - Mika Otsuki
- Faculty of Health Sciences, Hokkaido University, Kita 12, Nishi 5, Kita-ku, Sapporo, Hokkaido 060-0812, Japan
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Tuntevski K, Hajira A, Nichols A, Alway SE, Mohamed JS. Muscle-specific sirtuin1 gain-of-function ameliorates skeletal muscle atrophy in a pre-clinical mouse model of cerebral ischemic stroke. FASEB Bioadv 2020; 2:387-397. [PMID: 32676579 PMCID: PMC7354693 DOI: 10.1096/fba.2020-00017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 04/03/2020] [Accepted: 05/14/2020] [Indexed: 02/07/2023] Open
Abstract
Stroke causes severe long-term disability in patients due to the induction of skeletal muscle atrophy and weakness, but the molecular mechanisms remain elusive. Using a preclinical mouse model of cerebral ischemic stroke, we show that stroke robustly induced atrophy and significantly decreased SirT1 gene expression in the PTA (paralytic tibialis anterior) muscle. Muscle-specific SirT1 gain-of-function mice are resistant to stroke-induced muscle atrophy and this protective effect requires its deacetylase activity. Although SirT1 counteracts the stroke-induced up-regulation of atrogin1, MuRF1 and ZNF216 genes, we found a mechanism that regulates the ZNF216 gene transcription in post-stroke muscle. Stroke increased the expression of the ZNF216 gene in PTA muscle by activating PARP-1, which binds on the ZNF216 promoter. The SirT1 gain-of-function or SirT1 activator, resveratrol, reversed the PARP-1-mediated up-regulation of ZNF216 expression at the promoter level, suggesting a contradicted role for SirT1 and PARP-1 in the regulation of ZNF216 gene. Overall, our study for the first-time demonstrated that (a) stroke causes muscle atrophy, in part, through the SirT1/PARP-1/ZNF216 signaling mechanism; (b) SirT1 can block muscle atrophy in response to different types of atrophic signals via different signaling mechanisms; and (c) SirT1 is a critical regulator of post-stroke muscle mass.
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Affiliation(s)
- Kiril Tuntevski
- Department of Human PerformanceWest Virginia University School of MedicineMorgantownWVUSA
| | - Ameena Hajira
- Department of Human PerformanceWest Virginia University School of MedicineMorgantownWVUSA
| | - Austin Nichols
- Department of Human PerformanceWest Virginia University School of MedicineMorgantownWVUSA
| | - Stephen E. Alway
- Department of Human PerformanceWest Virginia University School of MedicineMorgantownWVUSA
- Laboratory of Muscle Biology and SarcopeniaDepartment of Physical TherapyCollege of Health ProfessionsUniversity of Tennessee Health Science CenterMemphisTNUSA
- Center for Muscle, Metabolism and NeuropathologyDivision of Rehabilitation SciencesCollege of Health ProfessionsUniversity of Tennessee Health Science CenterMemphisTNUSA
| | - Junaith S. Mohamed
- Department of Human PerformanceWest Virginia University School of MedicineMorgantownWVUSA
- Laboratory of Muscle and NerveDepartment of Diagnostic and Health SciencesCollege of Health ProfessionsUniversity of Tennessee Health Science CenterMemphisTNUSA
- Center for Muscle, Metabolism and NeuropathologyDivision of Rehabilitation SciencesCollege of Health ProfessionsUniversity of Tennessee Health Science CenterMemphisTNUSA
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Segmental Bioelectrical Impedance Analysis of the Body Composition of Affected and Unaffected Limbs After Hemiparetic Stroke. Am J Phys Med Rehabil 2020; 99:830-836. [DOI: 10.1097/phm.0000000000001434] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Relationship Between Body Mass Index and Rehabilitation Outcomes in Subacute Stroke With Dysphagia. Am J Phys Med Rehabil 2020; 98:608-612. [PMID: 30768452 DOI: 10.1097/phm.0000000000001159] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVE The aim of the study was to investigate the association between body mass index and rehabilitation outcome in hemiparetic patients with stroke in subacute phase. DESIGN This was a prospective study testing the correlation between body mass index and the effectiveness of rehabilitation, measured using Barthel Index scores. We enrolled patients with subacute stroke (n = 664; age, 68 ± 14 yrs; length of hospital stay, 84 ± 34 days). We assessed the body mass index and Barthel Index both at admission and discharge. The effectiveness of rehabilitation was computed as the percentage increment in Barthel Index score with respect to the maximum achievable improvement. RESULTS Effectiveness of rehabilitation was significantly correlated with the body mass index at discharge (R = 0.111, P = 0.004) and percentage change in body mass index (R = 0.253, P < 0.001), but not with body mass index at admission (R = 0.006, P = 0.869). CONCLUSIONS In addition to body mass index value, our findings suggest that rehabilitation outcomes can be influenced by the change in body mass index during rehabilitation.
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Estrada-Bonilla YC, Castro de Souza-Tomé PA, Faturi FM, Mendes-Zambetta R, Lepesteur-Gianlorenço AC, Croti G, Jones TA, Russo TL. Compensatory neuromuscular junction adaptations of forelimb muscles in focal cortical ischemia in rats. Brain Behav 2020; 10:e01472. [PMID: 32004425 PMCID: PMC7066338 DOI: 10.1002/brb3.1472] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Accepted: 08/17/2019] [Indexed: 01/03/2023] Open
Abstract
INTRODUCTION Upper limb movements are affected frequently by brain ischemia (BI). Mechanisms involved in recovery and compensatory movements have developed several studies. However, less attention is given to skeletal muscles, where neuromuscular junction (NMJ) has an important role on muscle tropism and functional performance. METHODS Animals were divided into two groups: control (C) and BI. Then, animals were skilled to perform single-pellet retrieval task, following these procedures: habituation, shaping, and single-pellet retrieval task. BI was induced using stereotaxic surgery in order to apply endothelin-1 in motor cortex, representative of movements of dominant paw. Reaching task performance was evaluated by single-pellet retrieval task 1 day before BI induction, 4 and 15 days after BI induction. After that, biceps, triceps, fingers flexor, and extensor muscles were extracted. NMJ was assessed in morphometric characteristics (total area, total perimeter, and feret). Muscle fiber cross-sectional area and connective tissue percentage were also evaluated for characterization. Student's t test was used for comparisons between C and BI groups. Tau Kendall's correlation was applied among variables from BI group. RESULTS An increase in all NMJ morphometric parameters, as well as increase of atrophy and fibrosis in BI group compared with C. There was a high level of direct correlation between mean values of NMJ morphometry with percentage of success in reaching task in BI group. CONCLUSION Brain ischemia-induced NMJ compensatory expansion, muscle atrophy, and fibrosis in forelimb muscles that are related to reaching performance.
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Affiliation(s)
- Yisel Carolina Estrada-Bonilla
- Physiotherapy Deparment - (DFisio), Laboratorio de Pesquisa em Fisioterapia Neurológica - LaFiN, Federal University of São Carlos, São Carlos, Brazil.,Body, Subjetct and Education Research Group, Physical Culture, Sports and Recreation, Saint Thomas University, Bogotá, DC, Colombia
| | - Paula Aiello Castro de Souza-Tomé
- Physiotherapy Deparment - (DFisio), Laboratorio de Pesquisa em Fisioterapia Neurológica - LaFiN, Federal University of São Carlos, São Carlos, Brazil
| | - Fernanda María Faturi
- Physiotherapy Deparment - (DFisio), Laboratorio de Pesquisa em Fisioterapia Neurológica - LaFiN, Federal University of São Carlos, São Carlos, Brazil
| | - Rafaella Mendes-Zambetta
- Physiotherapy Deparment - (DFisio), Laboratorio de Pesquisa em Fisioterapia Neurológica - LaFiN, Federal University of São Carlos, São Carlos, Brazil
| | - Anna Carolyna Lepesteur-Gianlorenço
- Physiotherapy Deparment - (DFisio), Laboratorio de Pesquisa em Fisioterapia Neurológica - LaFiN, Federal University of São Carlos, São Carlos, Brazil
| | - Gabrielle Croti
- Physiotherapy Deparment - (DFisio), Laboratorio de Pesquisa em Fisioterapia Neurológica - LaFiN, Federal University of São Carlos, São Carlos, Brazil
| | - Theresa A Jones
- Department of Psychology, Institute for Neuroscience, University of Texas at Austin, Austin, TX, USA
| | - Thiago Luiz Russo
- Physiotherapy Deparment - (DFisio), Laboratorio de Pesquisa em Fisioterapia Neurológica - LaFiN, Federal University of São Carlos, São Carlos, Brazil
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Lathuilière A, Mareschal J, Graf CE. How to Prevent Loss of Muscle Mass and Strength among Older People in Neuro-Rehabilitation? Nutrients 2019; 11:E881. [PMID: 31010176 PMCID: PMC6521136 DOI: 10.3390/nu11040881] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 04/17/2019] [Accepted: 04/17/2019] [Indexed: 12/12/2022] Open
Abstract
Stroke is the second leading cause of death worldwide but also of disability. Stroke induces certain alterations of muscle metabolism associated with gross muscle atrophy and a decrease in muscle function, leading to sarcopenia. The vast majority of stroke cases occur in adults over 65 years of age, and the prevalence is expected to massively increase in the coming years in this population. Sarcopenia is associated with higher mortality and functional decline. Therefore, the identification of interventions that prevent muscle alterations after stroke is of great interest. The purpose of this review is to carry out a systematic literature review to identify evidence for nutritional and pharmacological interventions, which may prevent loss of muscle mass in the elderly after stroke. The search was performed on Medline in December 2018. Randomized controlled studies, observational studies and case reports conducted in the last 20 years on post-stroke patients aged 65 or older were included. In total, 684 studies were screened, and eight randomized control trials and two cohort studies were finally included and examined. This review reveals that interventions such as amino acid supplementation or anabolic steroid administration are efficient to prevent muscle mass. Little evidence is reported on nutritional aspects specifically in sarcopenia prevention after stroke. It pinpoints the need for future studies in this particular population.
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Affiliation(s)
- Aurélien Lathuilière
- Department of Rehabilitation and Geriatrics, Geneva University Hospital, 1205 Geneva, Switzerland.
| | - Julie Mareschal
- Clinical Nutrition, Geneva University Hospital, 1205 Geneva, Switzerland.
| | - Christophe E Graf
- Department of Rehabilitation and Geriatrics, Geneva University Hospital, 1205 Geneva, Switzerland.
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GÜÇLÜ GÜNDÜZ A, YAZICI G, ÖZKUL Ç, KÜÇÜK H, BATUR ÇAĞLAYAN HZ, NAZLIEL B. The effects of early neurodevelopmental Bobath approach and mobilization on quadriceps muscle thickness in stroke patients. Turk J Med Sci 2019; 49:318-326. [PMID: 30761855 PMCID: PMC7350825 DOI: 10.3906/sag-1808-83] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Background/aim Following stroke, damage to the central nervous system and adaptive changes in muscle tissue are factors responsible for the loss of muscle strength. Even though it is suggested that early physiotherapy and mobilization prevent structural adaptive changes in muscle tissue, studies regarding this issue are insufficient. The aim of this study is to investigate the effects of early physiotherapy and mobilization on quadriceps muscle thickness (QMT) in stroke patients. Materials and methods Twelve stroke patients who were admitted to the neurology intensive care unit and 13 healthy controls were included in the study. QMT was examined at admission and discharge for each subject. Additionally, functional extremity movements, balance, and functional ambulation status were evaluated with the Stroke Rehabilitation Assessment of Movement Scale (STREAM). All of the patients were mobilized as early as possible by a physiotherapist and included in a treatment program consisting of the neurodevelopmental Bobath approach. Results The patients’ QMT values at admission and discharge were found to be similar to those of the healthy control group (P > 0.05). When the patients’ QMT at the time of admission and discharge were compared, it was seen that the affected side and the nonaffected side were similar (P > 0.05). Additionally, when the admission and discharge results were compared, improvements in functional extremity movements, balance, and functional ambulation levels were observed (P < 0.05). Conclusion It can be seen that QMT can be preserved and functional improvements can be provided through intense physiotherapy and mobilization initiated in the early period following stroke.
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Affiliation(s)
- Arzu GÜÇLÜ GÜNDÜZ
- Department of Physiotherapy and Rehabilitation, Faculty of Health Sciences, Gazi University, AnkaraTurkey
- * To whom correspondence should be addressed. E-mail:
| | - Gökhan YAZICI
- Department of Physiotherapy and Rehabilitation, Faculty of Health Sciences, Gazi University, AnkaraTurkey
| | - Çağla ÖZKUL
- Department of Physiotherapy and Rehabilitation, Faculty of Health Sciences, Gazi University, AnkaraTurkey
| | - Hamit KÜÇÜK
- Division of Internal Medicine, Department of Rheumatology, Faculty of Medicine, Gazi University, AnkaraTurkey
| | | | - Bijen NAZLIEL
- Department of Neurology, Faculty of Medicine, Gazi University, AnkaraTurkey
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van der Krogt H, Kouwijzer I, Klomp A, Meskers CGM, Arendzen JH, de Groot JH. Loss of selective wrist muscle activation in post-stroke patients. Disabil Rehabil 2019; 42:779-787. [PMID: 30634868 DOI: 10.1080/09638288.2018.1509241] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Purpose: Loss of selective muscle activation after stroke contributes to impaired arm function, is difficult to quantify and is not systematically assessed yet. The aim of this study was to describe and validate a technique for quantification of selective muscle activation of wrist flexor and extensor muscles in a cohort of post-stroke patients. Patterns of selective muscle activation were compared to healthy volunteers and test-retest reliability was assessed.Materials and methods: Activation Ratios describe selective activation of a muscle during its expected optimal activation as agonist and antagonist. Activation Ratios were calculated from electromyography signals during an isometric maximal torque task in 31 post-stroke patients and 14 healthy volunteers. Participants with insufficient voluntary muscle activation (maximal electromyography signal <3SD higher than baseline) were excluded.Results: Activation Ratios at the wrist were reliably quantified (Intraclass correlation coefficients 0.77-0.78). Activation Ratios were significantly lower in post-stroke patients compared to healthy participants (p < 0.05).Conclusion: Activation Ratios allow for muscle-specific quantification of selective muscle activation at the wrist in post-stroke patients. Loss of selective muscle activation may be a relevant determinant in assigning and evaluating therapy to improve functional outcome.Implications for RehabilitationLoss of selective muscle activation after stroke contributes to impaired arm function, is difficult to quantify and is not systematically assessed yet.The ability for selective muscle activation is a relevant determinant in assigning and evaluating therapy to improve functional outcome, e.g., botulinum toxin.Activation Ratios allow for reliable and muscle-specific quantification of selective muscle activation in post-stroke patients.
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Affiliation(s)
- Hanneke van der Krogt
- Department of Rehabilitation Medicine, Leiden University Medical Center, Leiden, The Netherlands
| | - Ingrid Kouwijzer
- Department of Rehabilitation Medicine, Leiden University Medical Center, Leiden, The Netherlands
| | - Asbjørn Klomp
- Department of Rehabilitation Medicine, Leiden University Medical Center, Leiden, The Netherlands.,Laboratory for Neuromuscular Control, Faculty of Mechanical, Maritime and Materials Engineering, Delft University of Technology, Delft, The Netherlands
| | - Carel G M Meskers
- Department of Rehabilitation Medicine, Leiden University Medical Center, Leiden, The Netherlands
| | - J Hans Arendzen
- Department of Rehabilitation Medicine, Leiden University Medical Center, Leiden, The Netherlands
| | - Jurriaan H de Groot
- Department of Rehabilitation Medicine, Leiden University Medical Center, Leiden, The Netherlands
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Faturi FM, Lopes Santos G, Ocamoto GN, Russo TL. Structural muscular adaptations in upper limb after stroke: a systematic review. Top Stroke Rehabil 2018; 26:73-79. [PMID: 30222075 DOI: 10.1080/10749357.2018.1517511] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
BACKGROUND Stroke is a leading cause of disability in the adult population, impairing upper limb (UL) movements affecting activities of daily living. Muscle weakness has been associated to disabilities in this population, but much attention is given to central nervous system alterations and less to skeletal muscles. OBJECTIVE The objective of this review is to carry out a systematic literature review to identify structural muscle alterations in the UL of poststroke individuals. METHOD The search was performed in December, 2017. MEDLINE, PubMed, SCOPUS, CINAHL, and Science Direct were used as electronic databases. There was no restriction regarding language and publication dates. Studies conducted on poststroke subjects and results on UL skeletal muscle alterations identified by imaging tests were included. RESULTS Seven studies were included. The sample size and the variables varied among the studies. All the studies compared the paretic UL with the nonparetic UL and one of the studies also compared healthy subjects. Ultrasonography was the most used measurement tool to assess muscle adaptation. CONCLUSIONS This review demonstrated little evidence with poor to fair quality on the structural muscle adaptations in the poststroke subjects, showing muscle atrophy, a higher stiffness, and amount of fibrous and fat tissue without alterations in lean tissue of distal muscles of the paretic UL compared to the nonparetic limb. However, the nonparetic side also presented alterations, which makes it an inappropriate comparison. Thus, well-designed studies addressing this issue are required.
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Affiliation(s)
- Fernanda Maria Faturi
- a Laboratory of Neurological Physical Therapy Research, Department of Physical Therapy , Federal University of São Carlos (UFSCar) , São Carlos , SP , Brazil
| | - Gabriela Lopes Santos
- a Laboratory of Neurological Physical Therapy Research, Department of Physical Therapy , Federal University of São Carlos (UFSCar) , São Carlos , SP , Brazil
| | - Gabriela Nagai Ocamoto
- a Laboratory of Neurological Physical Therapy Research, Department of Physical Therapy , Federal University of São Carlos (UFSCar) , São Carlos , SP , Brazil
| | - Thiago Luiz Russo
- a Laboratory of Neurological Physical Therapy Research, Department of Physical Therapy , Federal University of São Carlos (UFSCar) , São Carlos , SP , Brazil
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Nelson CM, Murray WM, Dewald JPA. Motor Impairment-Related Alterations in Biceps and Triceps Brachii Fascicle Lengths in Chronic Hemiparetic Stroke. Neurorehabil Neural Repair 2018; 32:799-809. [PMID: 30136897 DOI: 10.1177/1545968318792618] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Poststroke deficits in upper extremity function occur during activities of daily living due to motor impairments of the paretic arm, including weakness and abnormal synergies, both of which result in altered use of the paretic arm. Over time, chronic disuse and a resultant flexed elbow posture may result in secondary changes in the musculoskeletal system that may limit use of the arm and impact functional mobility. This study utilized extended field-of-view ultrasound to measure fascicle lengths of the biceps (long head) and triceps (distal portion of the lateral head) brachii in order to investigate secondary alterations in muscles of the paretic elbow. Data were collected from both arms in 11 individuals with chronic hemiparetic stroke, with moderate to severe impairment as classified by the Fugl-Meyer assessment score. Across all participants, significantly shorter fascicles were observed in both biceps and triceps brachii ( P < .0005) in the paretic limb under passive conditions. The shortening in paretic fascicle length relative to the nonparetic arm measured under passive conditions remained observable during active muscle contraction for the biceps but not for the triceps brachii. Finally, average fascicle length differences between arms were significantly correlated to impairment level, with more severely impaired participants showing greater shortening of paretic biceps fascicle length relative to changes seen in the triceps across all elbow positions ( r = -0.82, P = .002). Characterization of this secondary adaptation is necessary to facilitate development of interventions designed to reduce or prevent the shortening from occurring in the acute stages of recovery poststroke.
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Affiliation(s)
| | - Wendy M Murray
- 2 Northwestern University, Evanston, IL, USA.,3 Shirley Ryan AbilityLab (formerly Rehabilitation Institute of Chicago), Chicago, IL, USA.,4 Edward Hines, Jr. VA Hospital, Hines, IL, USA
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Skelton DA, Mavroeidi A. Which strength and balance activities are safe and efficacious for individuals with specific challenges (osteoporosis, vertebral fractures, frailty, dementia)?: A Narrative review. J Frailty Sarcopenia Falls 2018; 3:85-104. [PMID: 32300697 PMCID: PMC7155323 DOI: 10.22540/jfsf-03-085] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/22/2018] [Indexed: 12/29/2022] Open
Abstract
Physical activity guidelines advocate the inclusion of strength and balance activities, twice a week, for adults and older adults, but with caveat that in some individuals there will be certain movements and activities that could lead to adverse events. This scoping review summarizes the evidence about how safe and efficacious these activities are in older adults with specific challenges that might make them more prone to injury (e.g. having recently fractured or at risk of fracture (osteoporosis) or those who are frail or who have cognitive impairment). The review identified that for prevention of falls in people with a falls history and/or frailer older adults, structured exercise programmes that incorporate progressive resistance training (PRT) with increasing balance challenges over time are safe and effective if performed regularly, with supervision and support, over at least 6 months. Some minor adverse effects mainly transient musculoskeletal pain) have been reported. For those with a higher risk of falls and fractures (very poor balance, vertebral fractures), supervised structured exercise programmes are most appropriate. People with diagnosed osteoporosis should be as active as possible and only avoid activities with a high risk of falls if they are naïve to those activities. For those in transition to frailty who have poor strength and balance, exercises that are known to help maintain strength and balance (such as Tai Chi) are effective in preventing a decline in falls risk. For the very frail older adult, supervised structured exercise that has PRT, balance training and some endurance work, supervised and progressed by a trained person are advocated.
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Affiliation(s)
- Dawn A. Skelton
- School of Health and Life Sciences, Glasgow Caledonian University, Glasgow, UK
| | - Alexandra Mavroeidi
- School of Health and Life Sciences, Glasgow Caledonian University, Glasgow, UK
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Nozoe M, Kanai M, Kubo H, Takeuchi Y, Kobayashi M, Yamamoto M, Furuichi A, Yamazaki M, Shimada S, Mase K. Efficacy of neuromuscular electrical stimulation for preventing quadriceps muscle wasting in patients with moderate or severe acute stroke: A pilot study. NeuroRehabilitation 2018; 41:143-149. [PMID: 28527228 DOI: 10.3233/nre-171466] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
BACKGROUND Stroke-related muscle wasting is one of the factors leading to long-term disability and functional dependency. No study has reported an effective therapeutic intervention for such muscle wasting. OBJECTIVE The purpose of this study was to investigate the effects of neuromuscular electrical stimulation (NMES) on quadriceps muscle mass preservation in patients with acute moderate or severe stroke by using ultrasonography (US). METHODS Twenty patients with acute, moderate, or severe stroke (age: 68±11 years) were divided into usual care group (control group) and intervention groups (NMES group), respectively. Patients in the NMES group underwent NMES treatment for bilateral quadriceps muscles for 2 weeks in addition to the usual care. Quadriceps muscle thickness was measured on admission and 2 weeks after the first measurement. RESULTS The quadriceps muscle thickness on the paretic and non-paretic sides in the NMES group (-12.4% ±12.7%, -5.5% ±15.3%, respectively) significantly decreased to a lesser degree than that in the control group (-29.5% ±12.1%, P = 0.004; and -22.0% ±16.8%, P = 0.04, respectively). CONCLUSIONS NEMS seemed to have preserved the quadriceps muscle mass in patients with moderate or severe acute stroke.
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Affiliation(s)
- Masafumi Nozoe
- Department of Physical Therapy, Faculty of Nursing and Rehabilitation, Konan Women's University, Morikita-machi, Higashinada-ku, Kobe, Japan.,Department of Rehabilitation, Itami Kousei Neurosurgical Hospital, Itami, Japan
| | - Masashi Kanai
- Department of Rehabilitation, Itami Kousei Neurosurgical Hospital, Itami, Japan
| | - Hiroki Kubo
- Department of Rehabilitation, Itami Kousei Neurosurgical Hospital, Itami, Japan
| | - Yuka Takeuchi
- Department of Rehabilitation, Itami Kousei Neurosurgical Hospital, Itami, Japan
| | - Miki Kobayashi
- Department of Rehabilitation, Itami Kousei Neurosurgical Hospital, Itami, Japan
| | - Miho Yamamoto
- Department of Rehabilitation, Itami Kousei Neurosurgical Hospital, Itami, Japan
| | - Asami Furuichi
- Department of Rehabilitation, Itami Kousei Neurosurgical Hospital, Itami, Japan
| | - Makoto Yamazaki
- Department of Rehabilitation, Itami Kousei Neurosurgical Hospital, Itami, Japan
| | - Shinichi Shimada
- Department of Neurosurgery, Itami Kousei Neurosurgical Hospital, Itami, Japan
| | - Kyoshi Mase
- Department of Physical Therapy, Faculty of Nursing and Rehabilitation, Konan Women's University, Morikita-machi, Higashinada-ku, Kobe, Japan
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Borschmann K, Iuliano S, Ghasem-Zadeh A, Churilov L, Pang MYC, Bernhardt J. Upright activity and higher motor function may preserve bone mineral density within 6 months of stroke: a longitudinal study. Arch Osteoporos 2018; 13:5. [PMID: 29313169 PMCID: PMC5758649 DOI: 10.1007/s11657-017-0414-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Accepted: 12/18/2017] [Indexed: 02/03/2023]
Abstract
PURPOSE Bone fragility contributes to increased fracture risk, but little is known about the emergence of post-stroke bone loss. We investigated skeletal changes and relationships with physical activity, stroke severity, motor control and lean mass within 6 months of stroke. METHODS This is a prospective observational study. Participants were non-diabetic but unable to walk within 2 weeks of first stroke. Distal tibial volumetric bone mineral density (vBMD, primary outcome), bone geometry and microstructure (high-resolution peripheral quantitative computed tomography) were assessed at baseline and 6 months, as were secondary outcomes total body bone mineral content and lean mass (dual energy X-ray absorptiometry), bone metabolism (serum osteocalcin, N-terminal propeptide of type 1 procollagen (P1NP), C-terminal telopeptide of type 1 collagen (CTX)), physical activity (PAL2 accelerometer) and motor control (Chedoke McMaster) which were also measured at 1 and 3 months. RESULTS Thirty-seven participants (69.7 years (SD 11.6), 37.8% females, NIHSS 12.6 (SD 4.7)) were included. The magnitude of difference in vBMD between paretic and non-paretic legs increased within 6 months, with a greater reduction observed in paretic legs (mean difference = 1.5% (95% CI 0.5, 2.6), p = 0.007). At 6 months, better motor control was associated with less bone loss since stroke (r = 0.46, p = 0.02). A trend towards less bone loss was observed in people who regained independent walking compared to those who did not (p = 0.053). Higher baseline daily count of standing up was associated with less change in bone turnover over 6 months: osteocalcin (r = -0.51, p = 0.01), P1NP (r = -0.47, p = 0.01), CTX (r = -0.53, p = 0.01). CONCLUSION Better motor control and walking recovery were associated with reduced bone loss. Interventions targeting these impairments from early post-stroke are warranted. CLINICAL TRIAL REGISTRATION URL: http://www.anzctr.org.au . Unique identifier: ACTRN12612000123842.
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Affiliation(s)
- Karen Borschmann
- 0000 0001 2342 0938grid.1018.8School of Health Science, La Trobe University, Bundoora, Australia ,0000 0001 2179 088Xgrid.1008.9The Florey Institute of Neuroscience and Mental Health, University of Melbourne, Heidelberg, Australia
| | - Sandra Iuliano
- 0000 0001 2179 088Xgrid.1008.9Department of Medicine, Austin Health, University of Melbourne, Heidelberg, Australia ,0000 0001 2179 088Xgrid.1008.9Department of Endocrinology, Austin Health, University of Melbourne, Heidelberg, Australia
| | - Ali Ghasem-Zadeh
- 0000 0001 2179 088Xgrid.1008.9Department of Medicine, Austin Health, University of Melbourne, Heidelberg, Australia ,0000 0001 2179 088Xgrid.1008.9Department of Endocrinology, Austin Health, University of Melbourne, Heidelberg, Australia
| | - Leonid Churilov
- 0000 0001 2179 088Xgrid.1008.9The Florey Institute of Neuroscience and Mental Health, University of Melbourne, Heidelberg, Australia
| | - Marco Y. C. Pang
- 0000 0004 1764 6123grid.16890.36Department of Rehabilitation Sciences, Hong Kong Polytechnic University, Hung Hom, Hong Kong
| | - Julie Bernhardt
- 0000 0001 2342 0938grid.1018.8School of Health Science, La Trobe University, Bundoora, Australia ,0000 0001 2179 088Xgrid.1008.9The Florey Institute of Neuroscience and Mental Health, University of Melbourne, Heidelberg, Australia
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Borschmann KN, Ekinci EI, Iuliano S, Churilov L, Pang MYC, Bernhardt J. Reducing sedentary time and fat mass may improve glucose tolerance and insulin sensitivity in adults surviving 6 months after stroke: A phase I pilot study. Eur Stroke J 2017; 2:144-153. [PMID: 31008309 PMCID: PMC6453210 DOI: 10.1177/2396987317694469] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2016] [Accepted: 01/27/2017] [Indexed: 01/04/2023] Open
Abstract
INTRODUCTION Deranged glycaemic control is common post-stroke, increasing risks of recurrent stroke and development of diabetes. The aim of the study is to examine glucose metabolism in relation to body composition, physical activity and sedentary time post-stroke. PATIENTS AND METHODS Observational study: Non-diabetic adults, unable to walk independently, were recruited within 2 weeks of first stroke. Primary outcome: 2-h glucose level (mmol/l, oral glucose tolerance test), assessed at baseline and 6 months. Homeostasis Model Assessment of Insulin Sensitivity, total body fat and lean mass (dual energy X-ray absorptiometry), sedentary time (lying or sitting), standing and walking (PAL2 accelerometer) were assessed at baseline, 1, 3 and 6 months. Generalised estimating equations were used to examine change over time and associations between outcome measures. RESULTS Thirty-six participants (69.5 years (standard deviation 11.7), 13 (36.1%) female, moderate stroke severity (National Institute of Health Stroke Scale 11.5 (interquartile range 9.75, 16)). Within 6 months, adjusting for age and National Institute of Health Stroke Scale, every month 2-h glucose reduced by 4.5% (p < 0.001), Homeostasis Model Assessment of Insulin Sensitivity improved 3% (p = 0.04) and fat mass decreased 490 g (95% confidence interval 325, 655; p = 0.01). For every extra kilogram of body fat, 2-h glucose increased by 1.02 mmol/L (95% confidence interval 1.01, 1.02; p = 0.001); Homeostasis Model Assessment of Insulin Sensitivity reduced by 0.98% (95% confidence interval 0.97, 0.99; p = 0.001). Time spent sedentary reduced from 98.5% of measurement period (interquartile range 94.3, 99.8) to 74.3% (interquartile range 65.5, 88.6), by 2.8% monthly (95% confidence interval 1.8, 3.9, p < 0.001). For every additional 5% sedentary time, 2-h glucose increased by 1.05 mmol/L (95% confidence interval 1.04, 1.07; p < 0.001). CONCLUSION Reducing sedentary time and fat mass within 6 months of stroke may improve glucose tolerance and insulin resistance.
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Affiliation(s)
- Karen N Borschmann
- School of Health Science, La Trobe
University, Australia
- Florey Institute of Neuroscience and
Mental Health, University of Melbourne, Australia
| | - Elif I Ekinci
- Department of Medicine, University of
Melbourne, Australia
- Endocrine Centre, Austin Health,
Australia
- Menzies School of Health Research,
Darwin, Australia
| | - Sandra Iuliano
- Department of Medicine, University of
Melbourne, Australia
| | - Leonid Churilov
- Florey Institute of Neuroscience and
Mental Health, University of Melbourne, Australia
| | - Marco YC Pang
- Department of Rehabilitation Sciences,
Hong Kong Polytechnic University, Hong Kong
| | - Julie Bernhardt
- School of Health Science, La Trobe
University, Australia
- Florey Institute of Neuroscience and
Mental Health, University of Melbourne, Australia
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Klaer J, Mähler A, Scherbakov N, Klug L, von Haehling S, Boschmann M, Doehner W. Longer-term impact of hemiparetic stroke on skeletal muscle metabolism-A pilot study. Int J Cardiol 2016; 230:241-247. [PMID: 28063669 DOI: 10.1016/j.ijcard.2016.12.143] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2016] [Revised: 12/19/2016] [Accepted: 12/20/2016] [Indexed: 12/31/2022]
Abstract
BACKGROUND Hemiparetic stroke leads to structural and metabolic alterations of skeletal muscle tissue, thereby contributing to functional impairment associated with stroke. In situ metabolic processes at tissue level in skeletal muscle have not been investigated. We hypothesize that muscular metabolic capacity is limited after hemiparetic stroke, and that changes affect rather the paretic than non-paretic limb. METHODS Nine male hemiparetic stroke survivors (age, 62±8years; BMI, 28±4kg/m2; median stroke latency, 23months ranging from 7 to 34months poststroke) underwent dynamic in situ measurements of carbohydrate and lipid metabolism at fasting condition and during oral glucose tolerance testing, using bilateral microdialysis. Results were compared to 8 healthy male subjects of similar age and BMI. RESULTS Tissue perfusion, fasting and postprandial profiles of interstitial metabolites glucose, pyruvate, lactate and glycerol did not differ between paretic and non-paretic muscle. Patients displayed higher fasting and postprandial dialysate glycerol levels compared to controls (P<0.001) with elevated plasma FFA (fasting FFA; 0.63±0.23 vs. 0.29±0.17mmol/L; P=0.004). Glycolytic activity was higher in patients vs. controls, with increased lactate production upon glucose load (P<0.001). CONCLUSIONS An elevated lipolytic and glycolytic activity on tissue level suggests an impaired substrate metabolism with blunted oxidative metabolism in bilateral skeletal muscle in patients after hemiparetic stroke. Muscular metabolic properties did not differ between paretic and non-paretic leg. Further work is needed to investigate the clinical impact of this impaired muscular metabolic capacity in post-stroke patients.
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Affiliation(s)
- Jennifer Klaer
- Center for Stroke Research Berlin, Charité Medical School Berlin, Campus Virchow Klinikum, Augustenburger Platz 1, 13353 Berlin, Germany
| | - Anja Mähler
- Experimental and Clinical Research Center-a joint co-operation between Charité Medical School Berlin and Max Delbrück Center for Molecular Medicine, Lindenberger Weg 80, 13125 Berlin, Germany
| | - Nadja Scherbakov
- Center for Stroke Research Berlin, Charité Medical School Berlin, Campus Virchow Klinikum, Augustenburger Platz 1, 13353 Berlin, Germany
| | - Lars Klug
- Experimental and Clinical Research Center-a joint co-operation between Charité Medical School Berlin and Max Delbrück Center for Molecular Medicine, Lindenberger Weg 80, 13125 Berlin, Germany
| | - Stephan von Haehling
- Division of Innovative Clinical Trials, Department of Cardiology, University Medical Center Göttingen (UMG), RobertKochStr. 40, 37075 Göttingen, Germany
| | - Michael Boschmann
- Experimental and Clinical Research Center-a joint co-operation between Charité Medical School Berlin and Max Delbrück Center for Molecular Medicine, Lindenberger Weg 80, 13125 Berlin, Germany
| | - Wolfram Doehner
- Center for Stroke Research Berlin, Charité Medical School Berlin, Campus Virchow Klinikum, Augustenburger Platz 1, 13353 Berlin, Germany; Department of Cardiology, Charité Medical School Berlin, Campus Virchow Klinikum, Augustenburger Platz 1, 13353 Berlin, Germany.
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Santos GL, García-Salazar LF, Souza MB, Oliveira AB, Camargo PR, Russo TL. Torque steadiness and muscle activation are bilaterally impaired during shoulder abduction and flexion in chronic post-stroke subjects. J Electromyogr Kinesiol 2016; 30:151-60. [PMID: 27451360 DOI: 10.1016/j.jelekin.2016.07.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Revised: 06/30/2016] [Accepted: 07/05/2016] [Indexed: 01/05/2023] Open
Abstract
OBJECTIVE To characterize sensorimotor control and muscle activation in the shoulder of chronic hemiparetic during abduction and flexion in maximal and submaximal isometric contractions. Furthermore, to correlate submaximal sensorimotor control with motor impairment and degree of shoulder subluxation. METHODS Thirteen chronic hemiparetic post-stroke age-gender matched with healthy were included. Isometric torques were assessed using a dynamometer. Electromyographic activity of the anterior and middle deltoid, upper trapezius, pectoralis major and serratus anterior muscles were collected. Variables were calculated for torque: peak, time to target, standard deviation (SD), coefficient of variation (CV), and standard error (RMSE); for muscle activity: maximum and minimum values, range and coefficient of activation. Motor impairment was determined by Fugl-Meyer and shoulder subluxation was measured with a caliper. RESULTS Paretic and non-paretic limbs reduced peak and muscle activation during maximal isometric contraction. Paretic limb generated lower force when compared with non-paretic and control. Paretic and non-paretic presented higher values of SD, CV, RMSE, and CV for prime mover muscles and minimum values for all muscles during steadiness. No correlation was found between sensorimotor control, motor impairment and shoulder subluxation. CONCLUSION Chronic hemiparetic presented bilateral deficits in sensorimotor and muscle control during maximal and submaximal shoulder abduction and flexion.
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Affiliation(s)
- Gabriela Lopes Santos
- Department of Physiotherapy, Federal University of São Carlos (UFSCar), São Carlos, SP, Brazil.
| | - Luisa Fernanda García-Salazar
- Department of Physiotherapy, Federal University of São Carlos (UFSCar), São Carlos, SP, Brazil; Physical Therapy Program, School of Medicine and Health Science, University of Rosario, Bogotá, D.C., Colombia
| | - Matheus Bragança Souza
- Department of Physiotherapy, Federal University of São Carlos (UFSCar), São Carlos, SP, Brazil
| | - Ana Beatriz Oliveira
- Department of Physiotherapy, Federal University of São Carlos (UFSCar), São Carlos, SP, Brazil
| | - Paula Rezende Camargo
- Department of Physiotherapy, Federal University of São Carlos (UFSCar), São Carlos, SP, Brazil
| | - Thiago Luiz Russo
- Department of Physiotherapy, Federal University of São Carlos (UFSCar), São Carlos, SP, Brazil
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Nozoe M, Kanai M, Kubo H, Kitamura Y, Yamamoto M, Furuichi A, Takashima S, Mase K, Shimada S. Changes in Quadriceps Muscle Thickness, Disease Severity, Nutritional Status, and C-Reactive Protein after Acute Stroke. J Stroke Cerebrovasc Dis 2016; 25:2470-4. [PMID: 27388709 DOI: 10.1016/j.jstrokecerebrovasdis.2016.06.020] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2016] [Revised: 05/27/2016] [Accepted: 06/12/2016] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Lower leg muscle wasting is common in stroke patients; however, patient characteristics in the acute phase are rarely studied. This study aimed to examine the relationship between changes in quadriceps muscle thickness and disease severity, nutritional status, and C-reactive protein (CRP) levels after acute stroke. METHODS Thirty-one consecutive patients with acute intracerebral hemorrhage or ischemic stroke had quadriceps muscle thickness measured in the paretic and nonparetic limbs within 1 week after admission (first week) and 2 weeks after the first examination (last week) using ultrasonography. We also determined the relationship between the percentage change in muscle thickness and disease severity, nutritional status, and CRP levels on admission. RESULTS There was a significant correlation between changes in muscle thickness for both paretic and nonparetic sides and National Institutes of Health Stroke Scale (NIHSS) scores (paretic limb: r = -.46, P = .01; nonparetic limb: r = -.54, P = .002, respectively); however, there was no significant correlation with nutritional status on admission. Quadriceps muscle thickness was reduced more in the CRP-positive (≥.3 mg/dL) patients than in the CRP-negative (<.3 mg/dL) patients in the nonparetic limb (positive: -21.4 ± 12.1, negative: -11.4 ± 16.4%; P = .039), but not in the paretic limb (positive: -23.4 ± 9.0, negative: -19.1 ± 15.7; P = .27). CONCLUSIONS A high NIHSS score and a positive CRP on admission were both significantly correlated with decreased quadriceps muscle thickness after acute stroke. Nutritional status on admission was not correlated with changes in quadriceps muscle thickness for these patients.
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Affiliation(s)
- Masafumi Nozoe
- Department of Physical Therapy, Faculty of Nursing and Rehabilitation, Konan Women's University, Kobe, Japan; Department of Rehabilitation, Itami Kousei Neurosurgical Hospital, Itami, Japan.
| | - Masashi Kanai
- Department of Rehabilitation, Itami Kousei Neurosurgical Hospital, Itami, Japan
| | - Hiroki Kubo
- Department of Rehabilitation, Itami Kousei Neurosurgical Hospital, Itami, Japan
| | - Yuka Kitamura
- Department of Rehabilitation, Itami Kousei Neurosurgical Hospital, Itami, Japan
| | - Miho Yamamoto
- Department of Rehabilitation, Itami Kousei Neurosurgical Hospital, Itami, Japan
| | - Asami Furuichi
- Department of Rehabilitation, Itami Kousei Neurosurgical Hospital, Itami, Japan
| | - Sachie Takashima
- Department of Physical Therapy, Faculty of Nursing and Rehabilitation, Konan Women's University, Kobe, Japan
| | - Kyoshi Mase
- Department of Physical Therapy, Faculty of Nursing and Rehabilitation, Konan Women's University, Kobe, Japan
| | - Shinichi Shimada
- Department of Neurosurgery, Itami Kousei Neurosurgical Hospital, Itami, Japan
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Vahlberg B, Lindmark B, Zetterberg L, Hellström K, Cederholm T. Body composition and physical function after progressive resistance and balance training among older adults after stroke: an exploratory randomized controlled trial. Disabil Rehabil 2016; 39:1207-1214. [DOI: 10.1080/09638288.2016.1191551] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Birgit Vahlberg
- Department of Neuroscience, Section of Physiotherapy, Uppsala University, Uppsala, Sweden
| | - Birgitta Lindmark
- Department of Neuroscience, Section of Physiotherapy, Uppsala University, Uppsala, Sweden
| | - Lena Zetterberg
- Department of Neuroscience, Section of Physiotherapy, Uppsala University, Uppsala, Sweden
| | - Karin Hellström
- Department of Neuroscience, Section of Physiotherapy, Uppsala University, Uppsala, Sweden
| | - Tommy Cederholm
- Department of Public Health and Caring Sciences, Clinical Nutrition and Metabolism, Uppsala University, Uppsala, Sweden
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Scherbakov N, Knops M, Ebner N, Valentova M, Sandek A, Grittner U, Dahinden P, Hettwer S, Schefold JC, von Haehling S, Anker SD, Joebges M, Doehner W. Evaluation of C-terminal Agrin Fragment as a marker of muscle wasting in patients after acute stroke during early rehabilitation. J Cachexia Sarcopenia Muscle 2016; 7:60-7. [PMID: 27066319 PMCID: PMC4799857 DOI: 10.1002/jcsm.12068] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2014] [Revised: 07/15/2015] [Accepted: 07/31/2015] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND C-terminal Agrin Fragment (CAF) has been proposed as a novel biomarker for sarcopenia originating from the degeneration of the neuromuscular junctions. In patients with stroke muscle wasting is a common observation that predicts functional outcome. We aimed to evaluate agrin sub-fragment CAF22 as a marker of decreased muscle mass and physical performance in the early phase after acute stroke. METHODS Patients with acute ischaemic or haemorrhagic stroke (n = 123, mean age 70 ± 11 y, body mass index BMI 27.0 ± 4.9 kg/m(2)) admitted to inpatient rehabilitation were studied in comparison to 26 healthy controls of similar age and BMI. Functional assessments were performed at begin (23 ± 17 days post stroke) and at the end of the structured rehabilitation programme (49 ± 18 days post stroke) that included physical assessment, maximum hand grip strength, Rivermead motor assessment, and Barthel index. Body composition was assessed by bioelectrical impedance analysis (BIA). Serum levels of CAF22 were measured by ELISA. RESULTS CAF22 levels were elevated in stroke patients at admission (134.3 ± 52.3 pM) and showed incomplete recovery until discharge (118.2 ± 42.7 pM) compared to healthy controls (95.7 ± 31.8 pM, p < 0.001). Simple regression analyses revealed an association between CAF22 levels and parameters of physical performance, hand grip strength, and phase angle, a BIA derived measure of the muscle cellular integrity. Improvement of the handgrip strength of the paretic arm during rehabilitation was independently related to the recovery of CAF22 serum levels only in those patients who showed increased lean mass during the rehabilitation. CONCLUSIONS CAF22 serum profiles showed a dynamic elevation and recovery in the subacute phase after acute stroke. Further studies are needed to explore the potential of CAF22 as a serum marker to monitor the muscle status in patients after stroke.
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Affiliation(s)
- Nadja Scherbakov
- Center for Stroke Research CSB Charite Universitätsmedizin Berlin Germany; German Centre for Cardiovascular Research (DZHK), partner site Berlin Germany
| | - Michael Knops
- Center for Stroke Research CSB Charite Universitätsmedizin Berlin Germany
| | - Nicole Ebner
- Innovative Clinical Trials, Department of Cardiology and Pneumology University Medicine Göttingen Germany
| | - Miroslava Valentova
- Innovative Clinical Trials, Department of Cardiology and Pneumology University Medicine Göttingen Germany; 1st Department of Internal Medicine Comenius University Bratislava Slovak Republic
| | - Anja Sandek
- Innovative Clinical Trials, Department of Cardiology and Pneumology University Medicine Göttingen Germany
| | - Ulrike Grittner
- Center for Stroke Research CSB Charite Universitätsmedizin Berlin Germany
| | | | | | - Jörg C Schefold
- Department of Intensive Care Medicine Inselspital, University Hospital of Bern Switzerland
| | - Stephan von Haehling
- Innovative Clinical Trials, Department of Cardiology and Pneumology University Medicine Göttingen Germany
| | - Stefan D Anker
- Innovative Clinical Trials, Department of Cardiology and Pneumology University Medicine Göttingen Germany
| | | | - Wolfram Doehner
- Center for Stroke Research CSB Charite Universitätsmedizin Berlin Germany; German Centre for Cardiovascular Research (DZHK), partner site Berlin Germany; Department of Cardiology Charite Universitätsmedizin Berlin Germany
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Scherbakov N, Ebner N, Sandek A, Meisel A, Haeusler KG, von Haehling S, Anker SD, Dirnagl U, Joebges M, Doehner W. Influence of essential amino acids on muscle mass and muscle strength in patients with cerebral stroke during early rehabilitation: protocol and rationale of a randomized clinical trial (AMINO-Stroke Study). BMC Neurol 2016; 16:10. [PMID: 26793971 PMCID: PMC4722757 DOI: 10.1186/s12883-016-0531-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2015] [Accepted: 01/14/2016] [Indexed: 01/25/2023] Open
Abstract
Background Patients with stroke are at a high risk for long-term handicap and disability. In the first weeks after stroke muscle wasting is observed frequently. Early post-stroke rehabilitation programs are directed to improve functional independence and physical performance. Supplementation with essential amino acids (EAAs) might prevent muscle wasting and improve rehabilitation outcome by augmenting muscle mass and muscle strength. We aim to examine this in a double blinded, randomized placebo-controlled clinical trial. Methods Patients with ischemic or haemorrhagic stroke will be enrolled at begin of the early post-stroke rehabilitation in a parallel group interventional trial. Oral supplementation of EAAs or placebo will be given for 12 weeks in a double blinded manner. Physical and functional performance will be assessed by exercise testing before supplementation of EAAs as well as at discharge from the in-patient rehabilitation, at 12 weeks and 1 year afterwards. Discussion This is the first randomized double-blinded placebo-controlled clinical study aiming to assess the effect of the EAAs supplementation on muscle strength, muscle function and physical performance in stroke patients during early post-stroke rehabilitation. Supplementation of EAAs could prevent muscle mass wasting and improve functional independence after stroke. Trial registration The study is registered at the German registry for clinical trials as well as at World Health Organization (WHO; number DRKS00005577).
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Affiliation(s)
- Nadja Scherbakov
- Center for Stroke Research Berlin CSB, Charité - Universitätsmedizin Berlin, Berlin, Germany.,German Centre for Cardiovascular Research (DZHK), partner site Berlin, Berlin, Germany
| | - Nicole Ebner
- Innovative Clinical Trials, Department of Cardiology and Pneumology, University MedicineGöttingen (UMG), Göttingen, Germany
| | - Anja Sandek
- Innovative Clinical Trials, Department of Cardiology and Pneumology, University MedicineGöttingen (UMG), Göttingen, Germany
| | - Andreas Meisel
- Center for Stroke Research Berlin CSB, Charité - Universitätsmedizin Berlin, Berlin, Germany.,Department of Neurology, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Karl Georg Haeusler
- Center for Stroke Research Berlin CSB, Charité - Universitätsmedizin Berlin, Berlin, Germany.,Department of Neurology, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Stephan von Haehling
- Innovative Clinical Trials, Department of Cardiology and Pneumology, University MedicineGöttingen (UMG), Göttingen, Germany
| | - Stefan D Anker
- Innovative Clinical Trials, Department of Cardiology and Pneumology, University MedicineGöttingen (UMG), Göttingen, Germany
| | - Ulrich Dirnagl
- Center for Stroke Research Berlin CSB, Charité - Universitätsmedizin Berlin, Berlin, Germany.,German Centre for Cardiovascular Research (DZHK), partner site Berlin, Berlin, Germany.,Department of Neurology, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Michael Joebges
- Department of Neurology, Brandenburgklinik Bernau, Bernau, Germany
| | - Wolfram Doehner
- Center for Stroke Research Berlin CSB, Charité - Universitätsmedizin Berlin, Berlin, Germany. .,German Centre for Cardiovascular Research (DZHK), partner site Berlin, Berlin, Germany. .,Department of Cardiology, Charité - Universitätsmedizin Berlin, Berlin, Germany.
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Sherk KA, Sherk VD, Anderson MA, Bemben DA, Bemben MG. Lower limb neuromuscular function and blood flow characteristics in AFO-using survivors of stroke. J Geriatr Phys Ther 2016; 38:56-61. [PMID: 25032945 DOI: 10.1519/jpt.0000000000000017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND AND PURPOSE Ankle-foot orthoses (AFOs) and gait aids are commonly used by survivors of stroke to ambulate, but they have not been used as inclusion or exclusion criteria for physiological studies. The purpose of this study was to examine differences in neuromuscular function and blood flow characteristics between the lower limbs of ambulatory, AFO-using survivors of stroke (n = 9). METHODS The subjects were, on average, 14 years poststroke and had used an AFO for about 7 years. We used the following measures to assess both lower limbs: quadriceps muscular strength (manual muscle testing, 1RM), calf muscular endurance (single-leg heel raises), lower limb soft tissue composition and muscle cross-sectional area, calf resting blood flow (strain gauge plethysmography), and central neural drive of the plantar flexors (nerve stimulation). The sound limb was defined as the control. RESULTS Quadriceps strength, triceps surae endurance, and calf cross-sectional area all were greater in the sound limb than in the affected limb (relative differences: 76.3% ± 16.6%, 146.4% ± 24.6%, and 25.6% ± 5.7%, respectively). In addition, resting blood flow, peak torque, and central neural drive of the plantar flexors were significantly greater (relative differences: 38.7% ± 5.9%, 94.4% ± 17.9%, and 43.6% ± 12.0%, respectively) in the sound calf. DISCUSSION Our findings confirm that significant decrements in muscle performance, size, and blood flow persist in the affected limb many years after stroke despite a resumption of ambulation. CONCLUSIONS This cohort of ambulatory AFO users exhibited large variations in functional abilities. We recommend that future studies in stroke survivors consider AFO use in their research designs.
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Affiliation(s)
- Kyle A Sherk
- 1Department of Health and Exercise Science, University of Oklahoma, Norman, Oklahoma. 2Hanger Orthotics and Prosthetics, Oklahoma City, Oklahoma. 3Health Science Center, University of Oklahoma, Oklahoma City, Oklahoma
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Loss of muscle mass: Current developments in cachexia and sarcopenia focused on biomarkers and treatment. Int J Cardiol 2016; 202:766-72. [DOI: 10.1016/j.ijcard.2015.10.033] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Accepted: 10/04/2015] [Indexed: 02/07/2023]
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Drescher C, Konishi M, Ebner N, Springer J. Loss of muscle mass: current developments in cachexia and sarcopenia focused on biomarkers and treatment. J Cachexia Sarcopenia Muscle 2015; 6:303-11. [PMID: 26676067 PMCID: PMC4670737 DOI: 10.1002/jcsm.12082] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Accepted: 09/25/2015] [Indexed: 01/02/2023] Open
Abstract
Loss of muscle mass arises from an imbalance of protein synthesis and protein degradation. Potential triggers of muscle wasting and function are immobilization, loss of appetite, dystrophies, and chronic diseases as well as aging. All these conditions lead to increased morbidity and mortality in patients, which makes it a timely matter to find new biomarkers to get a fast clinical diagnosis and to develop new therapies. This mini-review covers current developments in the field of biomarkers and drugs on cachexia and sarcopenia. Here, we reported about promising markers, e.g. tartate-resistant acid phosphatase 5a, and novel substances like epigallocatechin-3-gallate. In summary, the progress to combat muscle wasting is in full swing, and perhaps diagnosis of muscle atrophy and of course patient treatments could be soon support by improved and more helpful strategies.
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Affiliation(s)
- Cathleen Drescher
- Innovative Clinical Trials, Department of Cardiology and Pneumology, University Medical Center Göttingen (UMG) Göttingen, Germany
| | - Masaaki Konishi
- Innovative Clinical Trials, Department of Cardiology and Pneumology, University Medical Center Göttingen (UMG) Göttingen, Germany
| | - Nicole Ebner
- Innovative Clinical Trials, Department of Cardiology and Pneumology, University Medical Center Göttingen (UMG) Göttingen, Germany
| | - Jochen Springer
- Innovative Clinical Trials, Department of Cardiology and Pneumology, University Medical Center Göttingen (UMG) Göttingen, Germany
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Duncan F, Lewis SJ, Greig CA, Dennis MS, Sharpe M, MacLullich AM, Mead GE. Exploratory Longitudinal Cohort Study of Associations of Fatigue After Stroke. Stroke 2015; 46:1052-8. [DOI: 10.1161/strokeaha.114.008079] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Fiona Duncan
- From the School of Health and Life Sciences, Glasgow Caledonian University, Glasgow, United Kingdom (F.D.); Geriatric Medicine (S.J.L., A.M.J.M., G.E.M.) and Division of Clinical Neurosciences (M.S.D.), University of Edinburgh, Edinburgh, United Kingdom; Centre for Musculoskeletal Ageing Research, University of Birmingham, Birmingham, United Kingdom (C.A.G.); and Department of Psychiatry, University of Oxford, Oxford, United Kingdom (M.S.)
| | - Susan J. Lewis
- From the School of Health and Life Sciences, Glasgow Caledonian University, Glasgow, United Kingdom (F.D.); Geriatric Medicine (S.J.L., A.M.J.M., G.E.M.) and Division of Clinical Neurosciences (M.S.D.), University of Edinburgh, Edinburgh, United Kingdom; Centre for Musculoskeletal Ageing Research, University of Birmingham, Birmingham, United Kingdom (C.A.G.); and Department of Psychiatry, University of Oxford, Oxford, United Kingdom (M.S.)
| | - Carolyn A. Greig
- From the School of Health and Life Sciences, Glasgow Caledonian University, Glasgow, United Kingdom (F.D.); Geriatric Medicine (S.J.L., A.M.J.M., G.E.M.) and Division of Clinical Neurosciences (M.S.D.), University of Edinburgh, Edinburgh, United Kingdom; Centre for Musculoskeletal Ageing Research, University of Birmingham, Birmingham, United Kingdom (C.A.G.); and Department of Psychiatry, University of Oxford, Oxford, United Kingdom (M.S.)
| | - Martin S. Dennis
- From the School of Health and Life Sciences, Glasgow Caledonian University, Glasgow, United Kingdom (F.D.); Geriatric Medicine (S.J.L., A.M.J.M., G.E.M.) and Division of Clinical Neurosciences (M.S.D.), University of Edinburgh, Edinburgh, United Kingdom; Centre for Musculoskeletal Ageing Research, University of Birmingham, Birmingham, United Kingdom (C.A.G.); and Department of Psychiatry, University of Oxford, Oxford, United Kingdom (M.S.)
| | - Michael Sharpe
- From the School of Health and Life Sciences, Glasgow Caledonian University, Glasgow, United Kingdom (F.D.); Geriatric Medicine (S.J.L., A.M.J.M., G.E.M.) and Division of Clinical Neurosciences (M.S.D.), University of Edinburgh, Edinburgh, United Kingdom; Centre for Musculoskeletal Ageing Research, University of Birmingham, Birmingham, United Kingdom (C.A.G.); and Department of Psychiatry, University of Oxford, Oxford, United Kingdom (M.S.)
| | - Alasdair M.J. MacLullich
- From the School of Health and Life Sciences, Glasgow Caledonian University, Glasgow, United Kingdom (F.D.); Geriatric Medicine (S.J.L., A.M.J.M., G.E.M.) and Division of Clinical Neurosciences (M.S.D.), University of Edinburgh, Edinburgh, United Kingdom; Centre for Musculoskeletal Ageing Research, University of Birmingham, Birmingham, United Kingdom (C.A.G.); and Department of Psychiatry, University of Oxford, Oxford, United Kingdom (M.S.)
| | - Gillian E. Mead
- From the School of Health and Life Sciences, Glasgow Caledonian University, Glasgow, United Kingdom (F.D.); Geriatric Medicine (S.J.L., A.M.J.M., G.E.M.) and Division of Clinical Neurosciences (M.S.D.), University of Edinburgh, Edinburgh, United Kingdom; Centre for Musculoskeletal Ageing Research, University of Birmingham, Birmingham, United Kingdom (C.A.G.); and Department of Psychiatry, University of Oxford, Oxford, United Kingdom (M.S.)
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Stroke-Related Sarcopenia: Specific Characteristics. J Am Med Dir Assoc 2015; 16:272-6. [DOI: 10.1016/j.jamda.2014.12.007] [Citation(s) in RCA: 90] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Accepted: 12/03/2014] [Indexed: 12/25/2022]
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Pak S, Patten C. Strengthening to Promote Functional Recovery Poststroke: An Evidence-Based Review. Top Stroke Rehabil 2015; 15:177-99. [DOI: 10.1310/tsr1503-177] [Citation(s) in RCA: 93] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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