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1.
Neurol Res ; 46(6): 553-560, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38565199

RESUMO

OBJECTIVES: Inadequate trunk function is the underlying cause of many problems such as impaired balance and mobility. Although there have been trunk-based physiotherapy approaches in recent years, almost all of these approaches focus on motor problems. This study aims to investigate the effects of sensory training combined with trunk-centered Bobath exercises on trunk control and proprioception, balance, gait, and the activity of daily living (ADL). MATERIALS AND METHODS: This study is a randomized controlled trial included with twenty-seven stroke patients. Participants were separated into two groups, Group 1; 'sensory training combined with trunk-centered Bobath exercises' and Group 2; 'trunk-centered Bobath exercises'. Trunk-centered Bobath exercises were used for motor training. Sensory training included transcutaneous electric nerve stimulation and a set of exercises that provide tactile and proprioceptive stimulation. Trunk Impairment Scale, Trunk Reposition Error, Berg Balance Scale, 2-minute walk test, and Barthel Index were used to assess trunk control, trunk proprioception, balance, gait, and ADL respectively. RESULTS: Intra-group analysis results showed that trunk control, trunk proprioception, balance, gait, and ADL improved in both groups after treatment (p < 0.05). The changes in the Trunk Reposition Error values of the participants in Group 1 before and after treatment was found to be significantly higher than Group 2 (p < 0.05). CONCLUSIONS: The findings indicated that the application of trunk-centered motor training is effective in improving trunk proprioception and trunk control, balance, gait, and ADL in stroke patients. Also, sensory training combined with trunk-centered motor training was found more effective in improving trunk proprioception than solely motor training.


Assuntos
Terapia por Exercício , Equilíbrio Postural , Propriocepção , Reabilitação do Acidente Vascular Cerebral , Acidente Vascular Cerebral , Tronco , Humanos , Masculino , Feminino , Propriocepção/fisiologia , Reabilitação do Acidente Vascular Cerebral/métodos , Pessoa de Meia-Idade , Método Simples-Cego , Acidente Vascular Cerebral/fisiopatologia , Acidente Vascular Cerebral/terapia , Acidente Vascular Cerebral/complicações , Tronco/fisiopatologia , Terapia por Exercício/métodos , Equilíbrio Postural/fisiologia , Idoso , Atividades Cotidianas , Adulto , Resultado do Tratamento
2.
West J Nurs Res ; 46(5): 389-399, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38545931

RESUMO

BACKGROUND: The improvement of swallowing function after stroke is a significant challenge faced by patients and health care professionals. However, the current evidence synthesis of the effects of respiratory muscle training (RMT) on swallowing function is limited. OBJECTIVE: To assess the effectiveness of RMT on swallowing recovery in patients undergoing stroke. METHODS: The CKNI, WanFang Data, PubMed, CINAHL, Web of Science, Embase, MEDLINE, and Cochrane Library databases were searched for studies evaluating RMT interventions' effect on swallowing outcomes. Risks of bias were evaluated using the approach recommended by the Cochrane Collaboration tool and a summary of findings table was generated using the GRADE approach. Outcomes were synthesized using a random-effects meta-analysis model. RESULTS: RMT interventions reduced the risk of aspiration (SMD = 1.19; 95% CI, 0.53-1.84), the recovery process of water swallowing function (RR = 1.22; 95% CI, 1.05-1.42), and the activity of the swallowing muscles (SMD = 2.91; 95% CI, 2.22-3.61). However, there was no significant effect of RMT on the functional level of oral intake (SMD = 0.70; 95% CI, -0.03 to 1.42). CONCLUSIONS: RMT can be regarded as an innovative, auxiliary means in the near future to better manage and improve swallowing function, given its improving effect on work outcomes in this review.


Assuntos
Exercícios Respiratórios , Deglutição , Humanos , Deglutição/fisiologia , Exercícios Respiratórios/métodos , Acidente Vascular Cerebral/complicações , Acidente Vascular Cerebral/fisiopatologia , Transtornos de Deglutição/terapia , Transtornos de Deglutição/etiologia , Reabilitação do Acidente Vascular Cerebral/métodos , Músculos Respiratórios/fisiopatologia
3.
Top Stroke Rehabil ; 31(6): 576-584, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-38351871

RESUMO

OBJECTIVES: The aim of this study was to investigate the effect of hippotherapy simulator on balance, postural control, mobility, functional capacity and independence level in people with stroke. METHODS: This study involved 26 people with stroke aged 18-65, who were randomly assigned to a Hippotherapy Simulator Group (HSG; n = 13) and a Conventional Exercise Group (CEG; n = 13). Patients underwent assessments using the Berg Balance Scale (BBS), Postural Assessment Scale for Stroke (PAS-S), Timed Up and Go Test (TUG), Rivermead Mobility Index (RMI), 2-Minute Walking Test (2-MWT), and Barthel Daily Living Activity Index (BI) to evaluate balance, postural control, mobility, functional capacity, and independence before and after treatment. In the HSG, participants received 30 sessions of conventional exercises and hippotherapy simulator - a mechanical and robotic equipment with a dynamic saddle simulating horse movement - exercises over 6 weeks. Meanwhile, the CEG underwent 30 sessions of conventional exercises alone for 6 weeks. RESULTS: In the post-therapy evaluation between groups, BBS (p = 0.004) and 2-MWT (p < 0.001) scores were higher in HSG compared to CEG. However, no statistically significant difference was found between the two groups in terms of PAS-S, RMI, TUG and BI scores (p > 0.05). Statistically significant differences were found between BBS, PAS-S, RMI, TUG, BI and 2-MWT scores before and after treatment in both groups (p < 0.05). CONCLUSIONS: Hippotherapy simulator can be added to conventional exercises to improve balance and functional capacity in people with stroke.


Assuntos
Terapia Assistida por Cavalos , Terapia por Exercício , Equilíbrio Postural , Reabilitação do Acidente Vascular Cerebral , Acidente Vascular Cerebral , Humanos , Reabilitação do Acidente Vascular Cerebral/métodos , Pessoa de Meia-Idade , Masculino , Feminino , Equilíbrio Postural/fisiologia , Adulto , Método Simples-Cego , Terapia Assistida por Cavalos/métodos , Terapia por Exercício/métodos , Idoso , Acidente Vascular Cerebral/fisiopatologia , Acidente Vascular Cerebral/terapia , Adulto Jovem , Avaliação de Resultados em Cuidados de Saúde , Adolescente
4.
NeuroRehabilitation ; 54(2): 185-197, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38306066

RESUMO

BACKGROUND: Electrical stimulation techniques are widely utilized for rehabilitation management in individuals with stroke patients. OBJECTIVES: This review aims to summarize the rehabilitative effects of electrical stimulation therapy on gait performance in stroke patients. METHODS: This review included randomized controlled trials (RCT) investigating the therapeutic effects of electrical stimulation in stroke patients throughout five databases. This review qualitatively synthesized 20 studies and quantitatively analyzed 11 RCTs. RESULTS: Functional electrical stimulation (FES) was the most commonly used electrical stimulation type to improve postural stability and gait performance in stroke patients. The clinical measurement tools commonly used in the three studies to assess the therapeutic effects of FES were Berg balance scale (BBS), 10-meter walk test (10MWT), 6-minute walk test (6mWT), and gait velocity. The BBS score and gait velocity had positive effects in the FES group compared with the control group, but the 10MWT and 6mWT showed the same effects between the two groups. The heterogeneity of BBS scores was also high. CONCLUSION: The results of this review suggest that electrical stimulation shows little evidence of postural stability and gait performance in stroke patients, although some electrical stimulations showed positive effects on postural stability and gait performance.


Assuntos
Terapia por Estimulação Elétrica , Transtornos Neurológicos da Marcha , Reabilitação do Acidente Vascular Cerebral , Acidente Vascular Cerebral , Humanos , Reabilitação do Acidente Vascular Cerebral/métodos , Terapia por Estimulação Elétrica/métodos , Transtornos Neurológicos da Marcha/reabilitação , Transtornos Neurológicos da Marcha/etiologia , Acidente Vascular Cerebral/complicações , Acidente Vascular Cerebral/fisiopatologia , Equilíbrio Postural/fisiologia , Marcha/fisiologia , Ensaios Clínicos Controlados Aleatórios como Assunto
5.
Neurol Sci ; 45(6): 2737-2746, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38158472

RESUMO

OBJECTIVE: Hand and upper limb functional impairments following stroke lead to limitations in performing activities of daily living. We aimed to investigate feasibility and efficacy of an early sensory-motor rehabilitation program on hand and upper limb function in patients with acute stroke. DESIGN: A pilot, single-subject experimental, A-B-A study. SETTING: Stroke unit of an educational hospital and an outpatient occupational therapy clinic. PARTICIPANTS: A convenience sample including five people with acute stroke. PROCEDURES: Participants received 3 h of an intensive hand and upper limb sensory and motor rehabilitation program, 5 days per week for 3 months (15-min mental imagery, 15-min action observation, 30-min mirror therapy, 1.5-h constraint-induced movement therapy, and 30-min bilateral arm training). Activities were chosen based on the task-oriented occupational therapy approach. OUTCOME MEASURES: An assessor blinded to intervention program measured sensory and motor functions using action research arm test, box and block test, Semmes-Weinstein monofilaments, and upper extremity section of Fugl-Meyer assessment. RESULTS: Assessment data points in intervention and follow-up phases compared to baseline were in higher levels, sloped upwardly, and increased significantly for all participants in all outcome measures. CONCLUSIONS: The present pilot study showed that a package of nowadays evidence-based rehabilitation methods including mental imagery, action observation, mirror therapy, modified constraint-induced movement therapy, bilateral arm training, and task-oriented occupational therapy approach is able to improve sensory and motor functions of the hand and upper limb in patients with acute stroke.


Assuntos
Estudos de Viabilidade , Mãos , Reabilitação do Acidente Vascular Cerebral , Acidente Vascular Cerebral , Humanos , Reabilitação do Acidente Vascular Cerebral/métodos , Projetos Piloto , Masculino , Feminino , Pessoa de Meia-Idade , Mãos/fisiopatologia , Acidente Vascular Cerebral/fisiopatologia , Acidente Vascular Cerebral/complicações , Idoso , Recuperação de Função Fisiológica/fisiologia , Terapia Ocupacional/métodos , Resultado do Tratamento , Extremidade Superior/fisiopatologia
6.
NeuroRehabilitation ; 54(2): 171-183, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38143386

RESUMO

BACKGROUND: Stroke is a clinical syndrome that can cause neurological disorders due to a reduction or interruption in the blood flow at the brain level. Transcranial direct current stimulation (TDCS) is a non-invasive electrotherapy technique with the ability to modulate the function of nervous tissue. OBJECTIVE: The aim of this review is to analyze the effects derived from the application of the TDCS for post-stroke patients on functionality and mobility. METHODS: The data search was conducted in PubMed, PEDro, Cochrane Library, Web of Science and Scopus between July and August 2023. The search focused on randomized clinical trials conducted in the period of 2019-2023, and according to the selection criteria, seven studies were obtained. RESULTS: The results found are mainly focused on the analysis of the scales Fugl-Meyer Assessment for Upper Extremity and Wolf Motor Function Test. CONCLUSION: The application of TDCS presents benefits in post-stroke individuals on functionality, mobility and other secondary studied variables.


Assuntos
Reabilitação do Acidente Vascular Cerebral , Estimulação Transcraniana por Corrente Contínua , Humanos , Estimulação Transcraniana por Corrente Contínua/métodos , Reabilitação do Acidente Vascular Cerebral/métodos , Modalidades de Fisioterapia , Acidente Vascular Cerebral/complicações , Acidente Vascular Cerebral/terapia , Acidente Vascular Cerebral/fisiopatologia , Adulto
7.
Biomed Eng Online ; 22(1): 66, 2023 Jul 05.
Artigo em Inglês | MEDLINE | ID: mdl-37407988

RESUMO

BACKGROUND: Motor impairment is a common consequence of stroke causing difficulty in independent movement. The first month of post-stroke rehabilitation is the most effective period for recovery. Movement imagination, known as motor imagery, in combination with virtual reality may provide a way for stroke patients with severe motor disabilities to begin rehabilitation. METHODS: The aim of this study is to verify whether motor imagery and virtual reality help to activate stroke patients' motor cortex. 16 acute/subacute (< 6 months) stroke patients participated in this study. All participants performed motor imagery of basketball shooting which involved the following tasks: listening to audio instruction only, watching a basketball shooting animation in 3D with audio, and also performing motor imagery afterwards. Electroencephalogram (EEG) was recorded for analysis of motor-related features of the brain such as power spectral analysis in the [Formula: see text] and [Formula: see text] frequency bands and spectral entropy. 18 EEG channels over the motor cortex were used for all stroke patients. RESULTS: All results are normalised relative to all tasks for each participant. The power spectral densities peak near the [Formula: see text] band for all participants and also the [Formula: see text] band for some participants. Tasks with instructions during motor imagery generally show greater power spectral peaks. The p-values of the Wilcoxon signed-rank test for band power comparison from the 18 EEG channels between different pairs of tasks show a 0.01 significance of rejecting the band powers being the same for most tasks done by stroke subjects. The motor cortex of most stroke patients is more active when virtual reality is involved during motor imagery as indicated by their respective scalp maps of band power and spectral entropy. CONCLUSION: The resulting activation of stroke patient's motor cortices in this study reveals evidence that it is induced by imagination of movement and virtual reality supports motor imagery. The framework of the current study also provides an efficient way to investigate motor imagery and virtual reality during post-stroke rehabilitation.


Assuntos
Basquetebol , Imaginação , Transtornos Motores , Reabilitação do Acidente Vascular Cerebral , Acidente Vascular Cerebral , Realidade Virtual , Humanos , Eletroencefalografia/métodos , Imaginação/fisiologia , Transtornos Motores/etiologia , Transtornos Motores/fisiopatologia , Transtornos Motores/reabilitação , Acidente Vascular Cerebral/complicações , Acidente Vascular Cerebral/fisiopatologia , Acidente Vascular Cerebral/terapia , Reabilitação do Acidente Vascular Cerebral/métodos , Córtex Motor/fisiopatologia , Basquetebol/fisiologia , Basquetebol/psicologia , Ondas Encefálicas/fisiologia
8.
Comput Math Methods Med ; 2022: 4581248, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35242206

RESUMO

BACKGROUND: Stroke is a common cerebrovascular disease among the middle-aged and elderly, which can lead to a series of neurological disorders. Acupuncture is an important part of traditional Chinese medicine, with great value in improving the neurological deficits of stroke patients. In addition, rehabilitation therapy is also of great significance for alleviating the neurological deficits of patients and improving their activities of daily living. OBJECTIVE: To explore the effect of acupuncture and moxibustion combined with rehabilitation therapy on the recovery of neurological function and prognosis of stroke patients. METHODS: The case data of 100 stroke patients treated in the Wuhan Hospital of Traditional Chinese Medicine from January 2019 to July 2021 were analyzed retrospectively. According to the treatment plan patients received, they were divided into the following two groups: an observation group (n = 52) treated with acupuncture combined with rehabilitation therapy and a control group (n = 48) treated with rehabilitation therapy alone. The two groups were compared in terms of the following items: therapeutic efficacy, plasma levels of cortisol (Cor) and neuropeptide Y (NPY), nerve function, motor function, balance ability, self-care ability, swallowing function, negative emotions, and quality of life. RESULTS: The therapeutic effect of the observation group was significantly higher than that of the control group (P < 0.05). The levels of Cor and NPY, as well as the neurological function, motor function, balance ability, self-care ability, swallowing function, and negative emotions, were not significantly different between the two groups before treatment (P > 0.05). While after intervention, all the above indexes improved in both groups, with better improvements in the observation group compared with the control group (P < 0.05). And the various dimensions concerning the quality of life of patients were also significantly better in the observation group when compared with the control group. CONCLUSION: Acupuncture of traditional Chinese medicine combined with rehabilitation therapy has outstanding effects in stroke treatment and can effectively improve the neurological function, prognosis, and quality of life of patients, which is worthy of clinical promotion.


Assuntos
Terapia por Acupuntura , Reabilitação do Acidente Vascular Cerebral/métodos , Acidente Vascular Cerebral/cirurgia , Atividades Cotidianas , Terapia por Acupuntura/estatística & dados numéricos , Idoso , Terapia Combinada , Biologia Computacional , Feminino , Humanos , Masculino , Medicina Tradicional Chinesa , Pessoa de Meia-Idade , Prognóstico , Qualidade de Vida , Recuperação de Função Fisiológica , Estudos Retrospectivos , Acidente Vascular Cerebral/fisiopatologia , Reabilitação do Acidente Vascular Cerebral/estatística & dados numéricos , Resultado do Tratamento
9.
PLoS One ; 17(2): e0263662, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35139128

RESUMO

It is known that resistance exercise using one limb can affect motor function of both the exercised limb and the unexercised contralateral limb, a phenomenon termed cross-education. It has been suggested that cross-education has clinical implications, e.g. in rehabilitation for orthopaedic conditions or post-stroke paresis. Much of the research on the contralateral effect of unilateral intervention on motor output is based on voluntary exercise. This scoping review aimed to map the characteristics of current literature on the cross-education caused by three most frequently utilised peripheral neuromuscular stimulation modalities in this context: electrical stimulation, mechanical vibration and percutaneous needling, that may direct future research and translate to clinical practice. A systematic search of relevant databases (Ebsco, ProQuest, PubMed, Scopus, Web of Science) through to the end of 2020 was conducted following the PRISMA Extension for Scoping Review. Empirical studies on human participants that applied a unilateral peripheral neuromuscular stimulation and assessed neuromuscular function of the stimulated and/or the unstimulated side were selected. By reading the full text, the demographic characteristics, context, design, methods and major findings of the studies were synthesised. The results found that 83 studies were eligible for the review, with the majority (53) utilised electrical stimulation whilst those applied vibration (18) or needling (12) were emerging. Although the contralateral effects appeared to be robust, only 31 studies claimed to be in the context of cross-education, and 25 investigated on clinical patients. The underlying mechanism for the contralateral effects induced by unilateral peripheral stimulation remains unclear. The findings suggest a need to enhance the awareness of cross-education caused by peripheral stimulation, to help improve the translation of theoretical concepts to clinical practice, and aid in developing well-designed clinical trials to determine the efficacy of cross-education therapies.


Assuntos
Terapia por Estimulação Elétrica , Fenômenos Fisiológicos Musculoesqueléticos , Reabilitação do Acidente Vascular Cerebral/métodos , Terapia por Estimulação Elétrica/métodos , Humanos , Doenças Neuromusculares/etiologia , Doenças Neuromusculares/fisiopatologia , Doenças Neuromusculares/terapia , Paresia/etiologia , Paresia/fisiopatologia , Paresia/terapia , Nervos Periféricos/fisiopatologia , Modalidades de Fisioterapia , Acidente Vascular Cerebral/complicações , Acidente Vascular Cerebral/fisiopatologia , Acidente Vascular Cerebral/terapia
10.
Comput Math Methods Med ; 2022: 9455428, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35027944

RESUMO

OBJECTIVE: To investigate the effect of neuromuscular electrical stimulation (NMES) combined with repetitive transcranial magnetic stimulation (rTMS) on upper limb motor dysfunction in stroke patients with hemiplegia. METHODS: A total of 240 stroke patients with hemiplegia who met the inclusion criteria were selected and randomly divided into 4 groups (60 cases in each group): control group, NMES group, rTMS group, and NMES + rTMS group. Before treatment and 4 weeks after treatment, we evaluated and compared the results including Fugl-Meyer assessment of upper extremity (FMA-UE) motor function, modified Barthel index (MBI), modified Ashworth scale (MAS), and motor nerve electrophysiological results among the 4 groups. RESULTS: Before treatment, there was no significant difference in the scores of FMA-UE, MBI, MAS, and motor nerve electrophysiological indexes among the four groups, with comparability. Compared with those before treatment, the scores of the four groups were significantly increased and improved after treatment. And the score of the NMES + rTMS group was notably higher than those in the other three groups. CONCLUSION: NMES combined with rTMS can conspicuously improve the upper extremity motor function and activities of daily life of stroke patients with hemiplegia, which is worthy of clinical application and promotion.


Assuntos
Terapia por Estimulação Elétrica/métodos , Hemiplegia/etiologia , Hemiplegia/reabilitação , Reabilitação do Acidente Vascular Cerebral/métodos , Acidente Vascular Cerebral/complicações , Acidente Vascular Cerebral/terapia , Estimulação Magnética Transcraniana/métodos , Idoso , Biologia Computacional , Feminino , Hemiplegia/fisiopatologia , Humanos , Masculino , Pessoa de Meia-Idade , Córtex Motor/fisiopatologia , Destreza Motora/fisiologia , Acidente Vascular Cerebral/fisiopatologia , Reabilitação do Acidente Vascular Cerebral/estatística & dados numéricos , Resultado do Tratamento , Extremidade Superior/fisiopatologia
11.
Neural Plast ; 2022: 5771634, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35069728

RESUMO

Background: Contralaterally controlled neuromuscular electrical stimulation (CCNMES) is a novel electrical stimulation treatment for stroke; however, reports on the efficacy of CCNMES on lower extremity function after stroke are scarce. Objective: To compare the effects of CCNMES versus NMES on lower extremity function and activities of daily living (ADL) in subacute stroke patients. Methods: Forty-four patients with a history of subacute stroke were randomly assigned to a CCNMES group and a NMES group (n = 22 per group). Twenty-one patients in each group completed the study per protocol, with one subject lost in follow-up in each group. The CCNMES group received CCNMES to the tibialis anterior (TA) and the peroneus longus and brevis muscles to induce ankle dorsiflexion motion, whereas the NMES group received NMES. The stimulus current was a biphasic waveform with a pulse duration of 200 µs and a frequency of 60 Hz. Patients in both groups underwent five 15 min sessions of electrical stimulation per week for three weeks. Indicators of motor function and ADL were measured pre- and posttreatment, including the Fugl-Meyer assessment of the lower extremity (FMA-LE) and modified Barthel index (MBI). Surface electromyography (sEMG) assessments included average electromyography (aEMG), integrated electromyography (iEMG), and root mean square (RMS) of the paretic TA muscle. Results: Values for the FMA-LE, MBI, aEMG, iEMG, and RMS of the affected TA muscle were significantly increased in both groups after treatment (p < 0.01). Patients in the CCNMES group showed significant improvements in all the measurements compared with the NMES group after treatment. Within-group differences in all post- and pretreatment indicators were significantly greater in the CCNMES group than in the NMES group (p < 0.05). Conclusion: CCNMES improved motor function and ADL ability to a greater extent than the conventional NMES in subacute stroke patients.


Assuntos
Atividades Cotidianas , Terapia por Estimulação Elétrica/métodos , Extremidade Inferior/fisiopatologia , Recuperação de Função Fisiológica/fisiologia , Reabilitação do Acidente Vascular Cerebral/métodos , Acidente Vascular Cerebral/fisiopatologia , Idoso , Eletromiografia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Músculo Esquelético/fisiopatologia , Resultado do Tratamento
12.
Hum Brain Mapp ; 43(3): 940-954, 2022 02 15.
Artigo em Inglês | MEDLINE | ID: mdl-34698418

RESUMO

Naming is a commonly impaired language domain in various types of aphasia. Emerging evidence supports the cortico-subcortical circuitry subserving naming processing, although neurovascular regulation of the non-dominant thalamic and basal ganglia subregions underlying post-stroke naming difficulty remains unclear. Data from 25 subacute stroke patients and 26 age-, sex-, and education-matched healthy volunteers were analyzed. Region-of-interest-wise functional connectivity (FC) was calculated to measure the strength of cortico-subcortical connections. Cerebral blood flow (CBF) was determined to reflect perfusion levels. Correlation and mediation analyses were performed to identify the relationship between cortico-subcortical connectivity, regional cerebral perfusion, and naming performance. We observed increased right-hemispheric subcortical connectivity in patients. FC between the right posterior superior temporal sulcus (pSTS) and lateral/medial prefrontal thalamus (lPFtha/mPFtha) exhibited significantly negative correlations with total naming score. Trend-level increased CBF in subcortical nuclei, including that in the right lPFtha, and significant negative correlations between naming and regional perfusion of the right lPFtha were observed. The relationship between CBF in the right lPFtha and naming was fully mediated by the lPFtha-pSTS connectivity in the non-dominant hemisphere. Our findings suggest that perfusion changes in the right thalamic subregions affect naming performance through thalamo-cortical circuits in post-stroke aphasia. This study highlights the neurovascular pathophysiology of the non-dominant hemisphere and demonstrates thalamic involvement in naming after stroke.


Assuntos
Afasia/fisiopatologia , Córtex Cerebral/fisiopatologia , Circulação Cerebrovascular/fisiologia , Conectoma , Lateralidade Funcional/fisiologia , Acidente Vascular Cerebral/fisiopatologia , Tálamo/fisiopatologia , Adulto , Idoso , Afasia/diagnóstico por imagem , Afasia/etiologia , Feminino , Humanos , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Psicolinguística , Acidente Vascular Cerebral/complicações , Acidente Vascular Cerebral/diagnóstico por imagem
13.
Sci Rep ; 11(1): 21351, 2021 11 01.
Artigo em Inglês | MEDLINE | ID: mdl-34725376

RESUMO

Post-stroke patients present various gait abnormalities such as drop foot, stiff-knee gait (SKG), and knee hyperextension. Functional electrical stimulation (FES) improves drop foot gait although the mechanistic basis for this effect is not well understood. To answer this question, we evaluated the gait of a post-stroke patient walking with and without FES by inverse dynamics analysis and compared the results to an optimal control framework. The effect of FES and cause-effect relationship of changes in knee and ankle muscle strength were investigated; personalized muscle-tendon parameters allowed the prediction of pathologic gait. We also predicted healthy gait patterns at different speeds to simulate the subject walking without impairment. The passive moment of the knee played an important role in the estimation of muscle force with knee hyperextension, which was decreased during FES and knee extensor strengthening. Weakening the knee extensors and strengthening the flexors improved SKG. During FES, weak ankle plantarflexors and strong ankle dorsiflexors resulted in increased ankle dorsiflexion, which reduced drop foot. FES also improved gait speed and reduced circumduction. These findings provide insight into compensatory strategies adopted by post-stroke patients that can guide the design of individualized rehabilitation and treatment programs.


Assuntos
Terapia por Estimulação Elétrica , Transtornos Neurológicos da Marcha/terapia , Reabilitação do Acidente Vascular Cerebral , Acidente Vascular Cerebral/complicações , Adulto , Fenômenos Biomecânicos , Feminino , Marcha , Transtornos Neurológicos da Marcha/etiologia , Transtornos Neurológicos da Marcha/fisiopatologia , Humanos , Acidente Vascular Cerebral/fisiopatologia , Caminhada
14.
Tissue Cell ; 73: 101649, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-34583247

RESUMO

Various methods have been used to induce the neuronal differentiation of marrow mesenchymal stem cells (MSCs). However, the limited induction efficiency of cells in vitro has restricted their use. Therefore, identifying a simple and efficient treatment method is necessary. Dendrobium officinale is an important traditional Chinese medicine, and its main component, polysaccharides, has many pharmacological activities. However, the effects of D. officinale polysaccharide (DOP) on the neuronal differentiation of bone marrow mesenchymal stem cells (BMSCs) and treatment of ischaemic stroke remain unknown. We found that DOP promoted the neuronal differentiation of BMSCs by increasing the expression levels of neural markers, and the optimal concentration of DOP was 25 µg/mL. Additionally, the Notch signalling pathway was inhibited during the neuronal differentiation of BMSCs induced by DOP, and this effect was strengthened using an inhibitor of this pathway. The Wnt signalling pathway was activated during the differentiation of BMSCs, and inhibition of the Wnt signalling pathway downregulated the expression of neuronal genes. Furthermore, the transplantation of neuron-like cells induced by DOP improved neuronal recovery, as the brain infarct volume, neurologic severity scores and levels of inflammatory factors were all significantly reduced in vivo. In conclusion, DOP is an effective inducer of the neuronal differentiation of BMSCs and treatment option for ischaemic stroke.


Assuntos
Dendrobium/química , Células-Tronco Mesenquimais/citologia , Neurônios/citologia , Polissacarídeos/farmacologia , Recuperação de Função Fisiológica , Acidente Vascular Cerebral/fisiopatologia , Acidente Vascular Cerebral/terapia , Animais , Biomarcadores/metabolismo , Diferenciação Celular/efeitos dos fármacos , Forma Celular/efeitos dos fármacos , Ventrículos Cerebrais/patologia , Modelos Animais de Doenças , Infarto da Artéria Cerebral Média/complicações , Masculino , Neurônios/efeitos dos fármacos , Ratos Sprague-Dawley , Receptores Notch/metabolismo , Recuperação de Função Fisiológica/efeitos dos fármacos , Via de Sinalização Wnt/efeitos dos fármacos
15.
Ann Neurol ; 90(5): 821-833, 2021 11.
Artigo em Inglês | MEDLINE | ID: mdl-34516002

RESUMO

OBJECTIVE: Slow waves are thought to mediate an overall reduction in synaptic strength during sleep. The specific contribution of the thalamus to this so-called synaptic renormalization is unknown. Thalamic stroke is associated with daytime sleepiness, along with changes to sleep electroencephalography and cognition, making it a unique "experiment of nature" to assess the relationship between sleep rhythms, synaptic renormalization, and daytime functions. METHODS: Sleep was studied by polysomnography and high-density electroencephalography over 17 nights in patients with thalamic (n = 12) and 15 nights in patients with extrathalamic (n = 11) stroke. Sleep electroencephalographic overnight slow wave slope changes and their relationship with subjective daytime sleepiness, cognition, and other functional tests were assessed. RESULTS: Thalamic and extrathalamic patients did not differ in terms of age, sleep duration, or apnea-hypopnea index. Conversely, overnight slope changes were reduced in a large cluster of electrodes in thalamic compared to extrathalamic stroke patients. This reduction was related to increased daytime sleepiness. No significant differences were found in other functional tests between the 2 groups. INTERPRETATION: In patients with thalamic stroke, a reduction in overnight slow wave slope change and increased daytime sleepiness was found. Sleep- and wake-centered mechanisms for this relationship are discussed. Overall, this study suggests a central role of the thalamus in synaptic renormalization. ANN NEUROL 2021;90:821-833.


Assuntos
Distúrbios do Sono por Sonolência Excessiva/fisiopatologia , Sono/fisiologia , Acidente Vascular Cerebral/fisiopatologia , Tálamo/fisiopatologia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Cognição/fisiologia , Eletroencefalografia/métodos , Humanos , Masculino , Pessoa de Meia-Idade , Polissonografia/métodos , Adulto Jovem
16.
Biomed Res Int ; 2021: 9912094, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34485529

RESUMO

BACKGROUND: Spasticity is a factor that impairs the independent functional ability of stroke patients, and noninvasive methods such as electrical stimulation or taping have been reported to have antispastic effects. The purpose of this study was to investigate the effects of transcutaneous electrical nerve stimulation (TENS) combined with taping on spasticity, muscle strength, and gait ability in stroke patients. METHODS: From July to October 2020, 46 stroke patients with moderate spasticity in the plantar flexors participated and were randomly assigned to the TENS group (n = 23) and the TENS+taping group (n = 23). All subjects performed a total of 30 sessions of functional training for 30 min/session, 5 days/week, for 6 weeks. For therapeutic exercise, sit-to-standing, indoor walking, and stair walking were performed for 10 min each. In addition, all participants in both groups received TENS stimulation around the peroneal nerve for 30 min before performing functional training. In the TENS+taping group, taping was additionally applied to the feet, ankles, and shin area after TENS, and the taping was replaced once a day. The composite spasticity score and handheld dynamometer measurements were used to assess the intensity of spasticity and muscle strength, respectively. Gait ability was measured using a 10 m walk test. RESULTS: The spasticity score and muscle strength were significantly improved in the TENS+taping group compared to those in the TENS group (p < 0.05). A significant improvement in gait speed was observed in the TENS+taping group relative to that in the TENS group (p < 0.05). CONCLUSIONS: Thus, TENS combined with taping may be useful in improving spasticity, muscle strength, and gait ability in stroke patients. Based on these results, an additional application of taping could be used to enhance the antispastic effect of TENS or other electrical stimulation treatments in the clinic. A long-term follow-up study is needed to determine whether the spasticity relieving effect persists after taping is removed.


Assuntos
Tornozelo/fisiopatologia , Terapia por Exercício/métodos , Espasticidade Muscular/terapia , Equilíbrio Postural/fisiologia , Reabilitação do Acidente Vascular Cerebral/métodos , Acidente Vascular Cerebral/fisiopatologia , Estimulação Elétrica Nervosa Transcutânea/métodos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Espasticidade Muscular/patologia , Espasticidade Muscular/fisiopatologia , Resultado do Tratamento
17.
Lipids Health Dis ; 20(1): 102, 2021 Sep 12.
Artigo em Inglês | MEDLINE | ID: mdl-34511125

RESUMO

BACKGROUND: Canola oil (Can) and several vegetable oils shorten the lifespan of stroke-prone spontaneously hypertensive rats (SHRSP). Although similar lifespan shortening has been reported for partially hydrogenated Can, the efficacy of fully hydrogenated oils on the lifespan remains unknown. The present study aimed to investigate the lifespan of SHRSP fed diets containing 10 % (w/w) of fully hydrogenated Can (FHCO) or other oils. METHODS: Survival test: Upon weaning, male SHRSP were fed a basal diet for rodents mixed with one of the test oils -i.e., FHCO, Can, lard (Lrd), and palm oil (Plm) throughout the experiment. The animals could freely access the diet and drinking water (water containing 1 % NaCl), and their body weight, food intake, and lifespan were recorded. Biochemical analysis test: Male SHRSP were fed a test diet with either FHCO, Can, or soybean oil (Soy) under the same condition, except to emphasize effects of fat, that no NaCl loading was applied. Soy was used as a fat source in the basal diet and was set the control group. Blood pressures was checked every 2 weeks, and serum fat levels and histological analyses of the brain and kidney were examined after 7 or 12 weeks of feeding. RESULTS: During the survival study period, the food consumption of FHCO-fed rats significantly increased (15-20 % w/w) compared with that of rats fed any other oil. However, the body weight gain in the FHCO group was significantly less (10-12 %) than that in the control group at 9-11 weeks old. The FHCO (> 180 days) intervention had the greatest effect on lifespan, followed by the Lrd (115 ± 6 days), Plm (101 ± 2 days), and Can (94 ± 3 days) diets. FHCO remarkably decreased the serum cholesterol level compared with Can and the systolic blood pressure from 12 to 16 weeks of age. In addition, while some rats in the Can group exhibited brain hemorrhaging and renal dysfunction at 16 weeks old, no symptoms were observed in the FHCO group. CONCLUSION: This current study suggests that complete hydrogenation decreases the toxicity of Can and even prolongs the lifespan in SHRSP.


Assuntos
Gorduras na Dieta/administração & dosagem , Hipertensão/dietoterapia , Longevidade/efeitos dos fármacos , Óleo de Palmeira/administração & dosagem , Óleo de Brassica napus/administração & dosagem , Óleo de Soja/administração & dosagem , Acidente Vascular Cerebral/prevenção & controle , Animais , Pressão Sanguínea/efeitos dos fármacos , Peso Corporal/efeitos dos fármacos , Encéfalo/irrigação sanguínea , Encéfalo/efeitos dos fármacos , Encéfalo/metabolismo , Colesterol/metabolismo , Ingestão de Alimentos/efeitos dos fármacos , Ácidos Graxos/metabolismo , Hidrogenação , Hipertensão/metabolismo , Hipertensão/mortalidade , Hipertensão/fisiopatologia , Rim/irrigação sanguínea , Rim/efeitos dos fármacos , Rim/metabolismo , Masculino , Fitosteróis/metabolismo , Óleo de Brassica napus/química , Ratos , Ratos Endogâmicos SHR , Acidente Vascular Cerebral/metabolismo , Acidente Vascular Cerebral/mortalidade , Acidente Vascular Cerebral/fisiopatologia , Análise de Sobrevida
18.
Neural Plast ; 2021: 2662585, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34456996

RESUMO

Acupuncture is widely recognized as a potentially effective treatment for stroke rehabilitation. Researchers in this area are actively investigating its therapeutic mechanisms. Magnetic resonance imaging (MRI), as a noninvasive, high anatomical resolution technique, has been employed to investigate neuroplasticity on acupuncture in stroke patients from a system level. However, there is no review on the mechanism of acupuncture treatment for stroke based on MRI. Therefore, we aim to summarize the current evidence about this aspect and provide useful information for future research. After searching PubMed, Web of Science, and Embase databases, 24 human and five animal studies were identified. This review focuses on the evidence on the possible mechanisms underlying mechanisms of acupuncture therapy in treating stroke by regulating brain plasticity. We found that acupuncture reorganizes not only motor-related network, including primary motor cortex (M1), premotor cortex, supplementary motor area (SMA), frontoparietal network (LFPN and RFPN), and sensorimotor network (SMN), as well as default mode network (aDMN and pDMN), but also language-related brain areas including inferior frontal gyrus frontal, temporal, parietal, and occipital lobes, as well as cognition-related brain regions. In addition, acupuncture therapy can modulate the function and structural plasticity of post-stroke, which may be linked to the mechanism effect of acupuncture.


Assuntos
Terapia por Acupuntura/métodos , Encéfalo/diagnóstico por imagem , Plasticidade Neuronal/fisiologia , Reabilitação do Acidente Vascular Cerebral/métodos , Acidente Vascular Cerebral/diagnóstico por imagem , Encéfalo/fisiopatologia , Humanos , Imageamento por Ressonância Magnética , Acidente Vascular Cerebral/fisiopatologia , Resultado do Tratamento
19.
Nutrients ; 13(8)2021 Aug 05.
Artigo em Inglês | MEDLINE | ID: mdl-34444864

RESUMO

Nutrition and rehabilitation are crucial in post-stroke recovery, especially in the elderly. Since stroke is the leading cause of long-term disability, there is a need to promote special, individually tailored nutrition strategies targeting older patients with low motor ability. Chronic stroke survivors have higher risk of developing nutrition-related chronic diseases, such as sarcopenia, anemia, type 2 diabetes mellitus and osteoporosis. Moreover, reduced motor activity, cognitive impairment and depression might be aggravated by poor malnutrition status. Accumulated data suggest that nutritional supplements and neuroprotective diets can be associated with better effectiveness of post-stroke rehabilitation as well as brain recovery. Therefore, this review focuses on preventive strategies that can improve dietary intake and change dietary patterns. We highlight the importance of neuroprotective diets, the problem of dysphagia and the role of nutrition in rehabilitation. This article focuses on potential nutritional supplements and neuroprotective diets that may have an impact on functional recovery during and after rehabilitation. Moreover, a new approach to post-stroke neuroplasticity including the use of agents from marine sources such as fucoxanthin and tramiprosate as compounds that might be used as potential neuroprotectants with antioxidative and anti-inflammatory properties is introduced.


Assuntos
Dieta/métodos , Suplementos Nutricionais , Desnutrição/prevenção & controle , Terapia Nutricional/métodos , Reabilitação do Acidente Vascular Cerebral/métodos , Idoso , Idoso de 80 Anos ou mais , Anti-Inflamatórios/administração & dosagem , Antioxidantes/administração & dosagem , Ingestão de Alimentos , Feminino , Humanos , Masculino , Desnutrição/etiologia , Neuroproteção , Fármacos Neuroprotetores , Estado Nutricional , Recuperação de Função Fisiológica , Acidente Vascular Cerebral/complicações , Acidente Vascular Cerebral/fisiopatologia
20.
J Stroke Cerebrovasc Dis ; 30(10): 106022, 2021 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-34364011

RESUMO

OBJECTIVE: This study aimed to investigate the completion rates of a home-based randomized trial, which examined home-based high-intensity respiratory muscle training after stroke compared with sham intervention. MATERIALS AND METHODS: Completion was examined in terms of recruitment (enrolment and retention), intervention (adherence and delivery of home-visits) and measurement (collection of outcomes). RESULTS: Enrolment was 32% and retention was 97% at post-intervention and 84% at follow-up. Adherence to the intervention was high at 87%. Furthermore, 83% of planned home-visits were conducted and 100% of outcomes were collected from those attending measurement sessions. CONCLUSION: This home-based randomized trial demonstrated high rates of enrolment, retention, adherence, delivery of home-visits, and collection of outcomes. Home-based interventions may help to improve completion rates of randomized trials.


Assuntos
Serviços Hospitalares de Assistência Domiciliar , Respiração , Músculos Respiratórios/inervação , Reabilitação do Acidente Vascular Cerebral , Acidente Vascular Cerebral/terapia , Telerreabilitação , Exercícios Respiratórios , Visita Domiciliar , Humanos , Cooperação do Paciente , Recuperação de Função Fisiológica , Acidente Vascular Cerebral/diagnóstico , Acidente Vascular Cerebral/fisiopatologia , Fatores de Tempo , Resultado do Tratamento
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