scholarly journals Proof-of-Concept of a Sensor-Based Evaluation Method for Better Sensitivity of Upper-Extremity Motor Function Assessment

Sensors ◽  
2021 ◽  
Vol 21 (17) ◽  
pp. 5926
Author(s):  
Seung-Hee Lee ◽  
Ye-Ji Hwang ◽  
Hwang-Jae Lee ◽  
Yun-Hee Kim ◽  
Matjaž Ogrinc ◽  
...  
Keyword(s):  
Upper Extremity ◽  
Motor Function ◽  
Evaluation Method ◽  
Fuzzy Inference ◽  
Pilot Trial ◽  
Depth Sensor ◽  
Stroke Patients ◽  
Fuzzy Input ◽  
Clinical Instrument ◽  
Function Assessment

In rehabilitation, the Fugl–Meyer assessment (FMA) is a typical clinical instrument to assess upper-extremity motor function of stroke patients, but it cannot measure fine changes of motor function (both in recovery and deterioration) due to its limited sensitivity. This paper introduces a sensor-based automated FMA system that addresses this limitation with a continuous rating algorithm. The system consists of a depth sensor (Kinect V2) and an algorithm to rate the continuous FM scale based on fuzzy inference. Using a binary logic based classification method developed from a linguistic scoring guideline of FMA, we designed fuzzy input/output variables, fuzzy rules, membership functions, and a defuzzification method for several representative FMA tests. A pilot trial with nine stroke patients was performed to test the feasibility of the proposed approach. The continuous FM scale from the proposed algorithm exhibited a high correlation with the clinician rated scores and the results showed the possibility of more sensitive upper-extremity motor function assessment.

Effects of bilateral arm training on upper extremity function in right and left hemispheric stroke

2020 ◽  
pp. 1-9
Author(s):  
Humera Ambreen ◽  
Hina Tariq ◽  
Imran Amjad
Keyword(s):  
Upper Extremity ◽  
Motor Function ◽  
Recovery Of Function ◽  
Hand Function ◽  
Group Analysis ◽  
Stroke Patients ◽  
Hemispheric Stroke ◽  
Beneficial Effects ◽  
Significant Difference ◽  
Bilateral Arm Training

Abstract Objective: This experimental study on 24 stroke patients aimed at evaluating and comparing the effects of bilateral arm training on upper extremity (UE) motor function between right and left hemispheric chronic stroke patients. Methods: Both groups received the same intervention involving 5 functional tasks for 1 hour, 3 days per week, for a total of 6 weeks. Fugl-Meyer Assessment-Upper Extremity and Wolf-Motor Function Test were applied as outcome measures at baseline and after 6 weeks of training to assess the recovery of function in the affected area. Results: Intra-group analysis showed no significant improvement in the wrist and hand function in the left hemispheric stroke (LHS) (p>0.05), while right hemispheric stroke (RHS) patients did not improve significantly in the coordination/speed domain (p>0.05). Inter-group analysis showed no significant difference between right and left hemispheric stroke patients (p>0.05). Conclusion: Bilateral arm training showed beneficial effects in improving UE function in both RHS and LHS patients. Distal UE function in LHS and coordination and speed of movement in RHS patients did not show any significant improvement. Key Words: Stroke, Upper extremity, Recovery of function, Bilateral arm training. Continuous...

Structural Magnetic Resonance Imaging Correlated with Motor Function of Upper Extremity in Patients with Chronic Stroke

QJM ◽  
2021 ◽  
Vol 114 (Supplement_1) ◽  
Author(s):  
Dalia Maher Samy ◽  
Mohamed Mahmoud Mostafa ◽  
Eman Mahmoud ◽  
Ahmed Mohamed Hazzou ◽  
Mohamed Khaled Ahmed Elewa ◽  
...  
Keyword(s):  
Upper Extremity ◽  
Motor Function ◽  
Cross Sectional Study ◽  
Chronic Stroke ◽  
Neurological Dysfunction ◽  
Stroke Patients ◽  
Cross Sectional ◽  
Function Impairment ◽  
Cerebrovascular Stroke ◽  
The Brain

Abstract Background Ischemic cerebrovascular stroke is defined as an acute neurological dysfunction caused by focal cerebral infarction after decrease in the blood supply of the brain either by stenosis or occlusion leading to gross physical impairment or disability lasting more than 24 hours. Objective To assess correlation between site of infarction and upper extremity ( UE) function in chronic stroke patients. Methodology A cross sectional study with (30) Patients with chronic ischemic stroke ( >3 months) suffering from persistent UE motor function impairment, MRI brain done to assess the site of infarction. UE motor function assessment using the Fugl Meyer Assessment (FMA-UE) Scale. Results The current study found that no significant correlation between the site of infarction and UE motor function. Conclusion We concluded that the site of infarction not correlated with UE motor function in chronic stroke patients.

scholarly journals Motor Function Assessment of Upper Limb in Stroke Patients

2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Bingyu Pan ◽  
Zhen Huang ◽  
Tingting Jin ◽  
Jiankang Wu ◽  
Zhiqiang Zhang ◽  
...  
Keyword(s):  
Motor Function ◽  
Upper Limb ◽  
Evaluation Method ◽  
Inertial Sensor ◽  
Treatment Strategies ◽  
Nonnegative Matrix ◽  
Sensor Data ◽  
Muscle Synergy ◽  
Control Group ◽  
Stroke Patients

Background. Quantitative assessment of motor function is extremely important for poststroke patients as it can be used to develop personalized treatment strategies. This study aimed to propose an evaluation method for upper limb motor function in stroke patients. Methods. Thirty-four stroke survivors and twenty-five age-matched healthy volunteers as the control group were recruited for this study. Inertial sensor data and surface electromyography (sEMG) signals were collected from the upper limb during voluntary upward reaching. Five features included max shoulder joint angle, peak and average speeds, torso balance calculated from inertial sensor data, and muscle synergy similarity extracted from sEMG data by the nonnegative matrix factorization algorithm. Meanwhile, the Fugl–Meyer score of each patient was graded by professional rehabilitation therapist. Results. Statistically significant differences were observed among severe, mild-to-moderate, and control group of five features ( p   ≤  0.001). The features varied as the level of upper limb motor function changes since these features significantly correlated with the Fugl–Meyer assessment scale ( p   ≤  0.001). Moreover, the Bland–Altman method was conducted and showed high consistency between the evaluation method of five features and Fugl–Meyer scale. Therefore, the five features proposed in this paper can quantitatively evaluate the motor function of stroke patients which is very useful in the rehabilitation process.

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