Basic Research on Walking Assist using Upper and Lower Limbs Version of curare for Patients with Post-stroke Hemiplegia

2018 ◽  
Vol 2018 (0) ◽  
pp. J1510103
Author(s):  
Ryo MIYAKE ◽  
Minoru HASHIMOTO ◽  
Atsushi TSUKAHARA
Author(s):  
Mahboubeh Ghayour Najafabadi ◽  
Ardalan Shariat ◽  
Jan Dommerholt ◽  
Azadeh Hakakzadeh ◽  
Amin Nakhostin-Ansari ◽  
...  

Sensors ◽  
2020 ◽  
Vol 20 (9) ◽  
pp. 2452
Author(s):  
Ana Cecilia Villa-Parra ◽  
Jessica Lima ◽  
Denis Delisle-Rodriguez ◽  
Laura Vargas-Valencia ◽  
Anselmo Frizera-Neto ◽  
...  

The goal of this study is the assessment of an assistive control approach applied to an active knee orthosis plus a walker for gait rehabilitation. The study evaluates post-stroke patients and healthy subjects (control group) in terms of kinematics, kinetics, and muscle activity. Muscle and gait information of interest were acquired from their lower limbs and trunk, and a comparison was conducted between patients and control group. Signals from plantar pressure, gait phase, and knee angle and torque were acquired during gait, which allowed us to verify that the stance control strategy proposed here was efficient at improving the patients’ gaits (comparing their results to the control group), without the necessity of imposing a fixed knee trajectory. An innovative evaluation of trunk muscles related to the maintenance of dynamic postural equilibrium during gait assisted by our active knee orthosis plus walker was also conducted through inertial sensors. An increase in gait cycle (stance phase) was also observed when comparing the results of this study to our previous work. Regarding the kinematics, the maximum knee torque was lower for patients when compared to the control group, which implies that our orthosis did not demand from the patients a knee torque greater than that for healthy subjects. Through surface electromyography (sEMG) analysis, a significant reduction in trunk muscle activation and fatigability, before and during the use of our orthosis by patients, was also observed. This suggest that our orthosis, together with the assistive control approach proposed here, is promising and could be considered to complement post-stroke patient gait rehabilitation.


Sensors ◽  
2021 ◽  
Vol 21 (16) ◽  
pp. 5334
Author(s):  
Iqram Hussain ◽  
Se-Jin Park

Electromyography (EMG) is sensitive to neuromuscular changes resulting from ischemic stroke and is considered a potential predictive tool of post-stroke gait and rehabilitation management. This study aimed to evaluate the potential myoelectric biomarkers for the classification of stroke-impaired muscular activity of the stroke patient group and the muscular activity of the control healthy adult group. We also proposed an EMG-based gait monitoring system consisting of a portable EMG device, cloud-based data processing, data analytics, and a health advisor service. This system was investigated with 48 stroke patients (mean age 70.6 years, 65% male) admitted into the emergency unit of a hospital and 75 healthy elderly volunteers (mean age 76.3 years, 32% male). EMG was recorded during walking using the portable device at two muscle positions: the bicep femoris muscle and the lateral gastrocnemius muscle of both lower limbs. The statistical result showed that the mean power frequency (MNF), median power frequency (MDF), peak power frequency (PKF), and mean power (MNP) of the stroke group differed significantly from those of the healthy control group. In the machine learning analysis, the neural network model showed the highest classification performance (precision: 88%, specificity: 89%, accuracy: 80%) using the training dataset and highest classification performance (precision: 72%, specificity: 74%, accuracy: 65%) using the testing dataset. This study will be helpful to understand stroke-impaired gait changes and decide post-stroke rehabilitation.


2021 ◽  
Vol 1 ◽  
pp. 1362-1372
Author(s):  
Delia Andini ◽  
Wahyu Ersila

Abstract Stroke sufferers who survive experience gait disorders because of damage to brain blood vessels that occurs when the arteries that supply blood to the brain are blocked, so that brain cells lose their oxygen supply which can lead to complaints of feeling weak in the lower limbs and the legs tend to wither or drop foot. . The Drop Foot Gait Rehabilitation Program is essential for improving muscle strength and muscle contraction. One of the Rehabilitation for Drop Foot Gait Post Stroke is FES. This study aims to analyze the effect of Functional Electrical Stimulation to correct Drop Foot Gait post stroke from various references. Selection of articles on literature review it uses PICO. Article writing using search literature through PubMed, Science Direct and Google Scholar with the inclusion criteria and exclusion criteria that have been determined. Literature restricted from 2010 – 2020. From result literature review The five articles show that the results of the characteristics of the respondents based on the gender of male 54.9% and female 45.1%, the results of the characteristics of the respondents based on the age of 100% less than 50 years, and the results of 4 articles of the characteristics of the respondents based on increasing gait using Berg Balance Scale measuring instrument is the average value of pre-test 5.40 and post-test average of 3.57 with a difference of 1.83. The results of a literature review of 1 article using a measuring toolElectroencephalogram that is with the results of the pre-test score of 5.5 and the post-test average of 0.8 with a difference of 4.7. So there is an increase in the patient's gaitDrop Foot Gait Post Stroke using Functional Electrical Stimulation (FES). Functional Electrical Stimulation has an effect on improving the gait of Drop Foot patients after stroke. As a basis for further research, especially regarding. Functional Electrical Stimulation to improve Drop Foot Gait after stroke.Keywords : strokes; post stroke;berg balance scale; drop foot gaitpost stroke Abstrak Penderita Stroke yang bertahan hidup mengalami gangguan berjalan akibat terjadinya kerusakan pembuluh darah otak yang terjadi ketika arteri yang memasok darah ke otak tersumbat, sehingga sel sel otak kehilangan suplai oksigen yang mengakibatkan keluhan merasa lemah pada anggota gerak bawah dan kaki cenderung layuh atau Drop Foot. rogram Rehabilitasi Drop Foot Gait sangat penting untuk meningkatkan kekuatan otot dan kontraksi otot. Salah satu Rehabilitasi untuk Drop Foot Gait Pasca Stroke adalah Functional Electrical Stimulation. Penelitian ini bertujuan untuk menganalisa pengaruh Functional Electrical Stimulation untuk memperbaiki Drop Foot Gait pasca stroke dari berbagai referensi. Pemilihan artikel pada literature review ini menggunakan PICO. Penulisan artikel menggunakan penelusuran literature melalui PubMed, Science Direct dan Google Scholar dengan kriteria inklusi dan kriteria eksklusi yang telah ditentukan. Literature diberi batasan dari tahun 2010 – 2020. Dari hasil literature review kelima artikel menunjukan bahwa hasil dari karakteristik responden berdasarkan jenis kelamin laki-laki 54,9% dan perempuan 45,1%, hasil dari karakteristik responden berdasarkan usia dari 4 artikel yaitu dengan rentang usia 20-80 tahun dan 1 artikel dengan rata-rata usia 60,7 tahun, hasil 4 artikel dari karakteristik responden berdasarkan peningkatan gaya berjalan menggunakan alat ukur Berg Balance Scale yaitu nilai rata-rata pre test 5,40 dan rata-rata post-test 3,57 dengan selisih 1,83. Hasil literature review 1 artikel menggunakan alat ukur Electroensefalogram mendapatkan hasil nilai pre test 5,5 dan post test 0,8 dengan selisih 4,7. Sehingga ada peningkatan gaya berjalan pada pasien Drop Foot Gait Pasca Stroke menggunakan Functional Electrical Stimulation (FES). Functional Electrical Stimulation berpengaruh untuk memperbaiki gaya berajalan pasien Drop Foot pasca stroke. sebagai dasar untuk penelitian-penelitian lebih lanjut khususnya mengenai Functional Electrical Stimulation untuk memperbaiki Drop Foot Gait pasca stroke dan direkomendasikan untuk profesi fisioterapi sebagai bahan literasi untuk pemberian intervensi pada kasus Drop Foot Gait Pasca Stroke menggunakan FES.Kata Kunci : stroke; pasca stroke; berg balance scale; drop foot gait post stroke.


1989 ◽  
Vol 33 (18) ◽  
pp. 1201-1205 ◽  
Author(s):  
P. Y. Hennion ◽  
R. Mollard ◽  
A. Coblentz

A basic research was conducted on a sample of twelve right-handed young males for pull actions of the upper limb on a gauge handle. The general purpose is to constitute an atlas of forces for french males, useful for ergonomics studies. Different conditions were tested before to select a standard protocol. Main difficulties concern the elimination of lower limbs contribution, the stability of the posture, the motivation of the subject and the choice of the parameters for the measure. Intra-individual variability in function of the protocols is in a range of 20-30%. With the usual standard protocol, this variability still remains if we try to evaluate maximal pull force during a week period. The interpretation of these data is not clear, and a more accurate definition of the measure is necessary before recommendations for normative data. Time duration of 5 seconds, real-time display of the force and maximal peak value seem to be an acceptable solution by comparison with a functional effort on a torque wrench that reflects a realistic action. It is proposed to use this procedure for the next experiments.


2010 ◽  
Vol 68 (6) ◽  
pp. 908-913 ◽  
Author(s):  
Fernanda Beinotti ◽  
Nilzete Correia ◽  
Gustavo Christofoletti ◽  
Guilherme Borges

OBJECTIVE: To evaluate the hippotherapy influence on gait training in post-stroke hemiparetic individuals. METHOD: The study was constituted of 20 individuals divided into two groups. Group A performed the conventional treatment while group B the conventional treatment along with hippotherapy during 16 weeks. The patients were evaluated by using the Functional Ambulation Category Scale, Fugl-Meyer Scale, only the lower limbs and balance sub items, Berg Balance Scale, and functional assessment of gait (cadence) in the beginning and end of the treatment. RESULTS: Significant improvements were observed in the experimental group including motor impairment in lower limbs (p=0.004), balance, over time (p=0.007) but a significant trend between groups (p=0.056). The gait independence, cadence and speed were not significantly in both groups (p=0.93, 0.69 and 0.44). CONCLUSION: Hippotherapy associated with conventional physical therapy demonstrates a positive influence in gait training, besides bringing the patients' gait standard closer to normality than the control group.


2021 ◽  
Vol 15 ◽  
Author(s):  
Natalia Sánchez ◽  
Carolee J. Winstein

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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