An investigation of upper limb motor task based discriminate for high risk autism

2017 ◽  
Author(s):  
Mohammad Wedyan ◽  
Adel Al-Jumaily
Keyword(s):  
High Risk ◽  
Upper Limb ◽  
Motor Task

Peningkatkan Efisiensi Proses Transformasi Material Melalui Evaluasi Pengembangan Stasiun Kerja Proses Produksi (Paper Pallet)

2021 ◽  
Vol 7 (1) ◽  
pp. 1-6
Author(s):  
Pandiono ◽  
Dayal Gustopo Setiadjit ◽  
Fuad Achmadi
Keyword(s):  
High Risk ◽  
Musculoskeletal Disorders ◽  
Upper Limb ◽  
Low Risk

Tujuan penelitian ini adalah untuk mengetahui peningkatan efisiensi proses transformasi material melalui evaluasi pengembangan stasiun kerja proses produksi paper pallet di PT xxx.  Penelitian ini dilakukan dengan tiga tahap, yaitu; 1) melakukan observasi terhadap postur tubuh pada operator cutting maupun grooving hasilnya diukur melalui simulasi pada Rapid Upper Limb Assessment (RULA) dengan indikasi bahwa operator dalam kondisi High Risk untuk terkena Musculoskeletal disorders (MSDs), 2) simulasi menggunakan software Mannequin Pro diketahui beban torsi pada masing-masing operator mesin cutting dan groove relatif tinggi yaitu sebesar 8 Nm dan 36 Nm, dan 3) melakukan redesain stasiun kerja dengan dimensi tinggi mesin menjadi 89 cm. Hasil penelitian menunjukkan perancangan baru memberi peningkatan efisiensi pada waktu kerja pembuatan pallet sebesar 4.6 menit/pallet, penurunan pada skor RULA di masing- masing tubuh operator mesin cutting maupun mesin groove pada skor low Risk berarti operator terbebas dari resiko Musculoskeletal disorders (MSDs), uji Sofware mannequin pro didapat beban torsi masing masing operator sebesar  2 Nm. Signifikansi hasil penelitian ini adalah perancangan stasiun kerja baru dapat menurunkan potensi terjadinya Musculoskeletal disorders (MSDs), beban torsi operator dapat meningkatkan waktu pembuatan paper pallet sebesar 96%.

scholarly journals Development of Upper-Limb Assist Suit for Reduction Physical Load in Leaf Photosynthesis Measurement

2020 ◽  
pp. 185-190
Author(s):  
Toshitake Araie ◽  
◽  
Ikeda Tomozumi ◽  
Akira Kakimoto ◽  
Shunsuke Adachi ◽  
...  
Keyword(s):  
High Risk ◽  
Upper Limb ◽  
Photosynthetic Capacity ◽  
Evaluation Methods ◽  
The Body ◽  
Physical Load ◽  
Leaf Photosynthesis ◽  
Measuring Device ◽  
Risk Of Injury ◽  
Work Posture

Agricultural tasks result in significant strain on the arms, thereby necessitating posture support. One such task is measuring the photosynthetic capacity of individual leaves. This task requires the operator to hold a measuring device for long periods, which is physically demanding. This study aims to develop an assist suit to reduce the physical load involved in photosynthesis measurement work. We used work posture evaluation methods to quantify the workload of this task and identified the parts of the body at high-risk of injury. Then, we designed an assist suit based on the required specifications and verified its effectiveness.

scholarly journals A Multiparameter Approach to Evaluate Post-Stroke Patients: An Application on Robotic Rehabilitation

2018 ◽  
Vol 8 (11) ◽  
pp. 2248 ◽  
Author(s):  
Antonella Belfatto ◽  
Alessandro Scano ◽  
Andrea Chiavenna ◽  
Alfonso Mastropietro ◽  
Simona Mrakic-Sposta ◽  
...  
Keyword(s):  
Upper Limb ◽  
Brain Activity ◽  
Quantitative Description ◽  
Motor Task ◽  
Chronic Patients ◽  
Clinical Scales ◽  
Post Stroke ◽  
Robotic Therapy ◽  
Parameter Evaluation ◽  
Before And After

Multidomain instrumental evaluation of post-stroke chronic patients, coupled with standard clinical assessments, has rarely been exploited in the literature. Such an approach may be valuable to provide comprehensive insight regarding patients’ status, as well as orienting the rehabilitation therapies. Therefore, we propose a multidomain analysis including clinically compliant methods as electroencephalography (EEG), electromyography (EMG), kinematics, and clinical scales. The framework of upper-limb robot-assisted rehabilitation is selected as a challenging and promising scenario to test the multi-parameter evaluation, with the aim to assess whether and in which domains modifications may take place. Instrumental recordings and clinical scales were administered before and after a month of intensive robotic therapy of the impaired upper limb, on five post-stroke chronic hemiparetic patients. After therapy, all patients showed clinical improvement and presented pre/post modifications in one or several of the other domains as well. All patients performed the motor task in a smoother way; two of them appeared to change their muscle synergies activation strategies, and most subjects showed variations in their brain activity, both in the ipsi- and contralateral hemispheres. Changes highlighted by the new multiparametric instrumental approach suggest a recovery trend in agreement with clinical scales. In addition, by jointly demonstrating lateralization of brain activations, changes in muscle recruitment and the execution of smoother trajectories, the new approach may help distinguish between true functional recovery and the adoption of suboptimal compensatory strategies. In the light of these premises, the multi-domain approach may allow a finer patient characterization, providing a deeper insight into the mechanisms underlying the relearning procedure and the level (neuro/muscular) at which it occurred, at a relatively low expenditure. The role of this quantitative description in defining a personalized treatment strategy is of great interest and should be addressed in future studies.

scholarly journals Dual Task Effects on Speed and Accuracy During Cognitive and Upper Limb Motor Tasks in Adults With Stroke Hemiparesis

2021 ◽  
Vol 15 ◽  
Author(s):  
Hogene Kim ◽  
Hyun-Ki Kim ◽  
Nayoung Kim ◽  
Chang S. Nam
Keyword(s):  
Upper Limb ◽  
Dual Task ◽  
Word Association ◽  
Cognitive Task ◽  
Motor Task ◽  
Motor Speed ◽  
Dual Tasks ◽  
The Cross ◽  
Motor Accuracy ◽  
Speed And Accuracy

BackgroundAdults with stroke need to perform cognitive–motor dual tasks during their day-to-day activities. However, they face several challenges owing to their impaired motor and cognitive functions.ObjectiveThis case-controlled pilot study investigates the speed and accuracy tradeoffs in adults with stroke while performing cognitive–upper limb motor dual tasks.MethodsTen adults with stroke and seven similar-aged controls participated in this study. The participants used a robotic arm for the single motor task and participated in either the serial sevens (S7) or the controlled oral word association test (COWAT) for single-cognitive task. For the dual task, the participants performed the motor and cognitive components simultaneously. Their speed and accuracy were measured for the motor and cognitive tasks, respectively.ResultsTwo-sample t-statistics indicated that the participants with stroke exhibited a lower motor accuracy in the cross task than in the circle task. The cognitive speed and motor accuracy registered by the subjects with stroke in the dual task significantly decreased. There was a negative linear correlation between motor speed and accuracy in the subjects with stroke when the COWAT task was performed in conjunction with the cross task (ρ = −0.6922, p = 0.0388).ConclusionsThis study proves the existence of cognitive–upper limb motor interference in adults with stroke while performing dual tasks, based on the observation that their performance during one or both dual tasks deteriorated compared to that during the single task. Both speed and accuracy were complementary parameters that may indicate clinical effectiveness in motor and cognitive outcomes in individuals with stroke.

Review: Functional Neuroimaging Studies of Early Upper Limb Recovery After Stroke: A Systematic Review of the Literature

2010 ◽  
Vol 24 (7) ◽  
pp. 589-608 ◽  
Author(s):  
Floor E. Buma ◽  
Eline Lindeman ◽  
Nick F. Ramsey ◽  
Gert Kwakkel
Keyword(s):  
Task Performance ◽  
Upper Limb ◽  
Primary Motor Cortex ◽  
Functional Neuroimaging ◽  
Imaging Techniques ◽  
Brain Activity ◽  
Treatment Strategies ◽  
Motor Task ◽  
Stroke Recovery ◽  
Future Research

Background. Understanding mechanisms of recovery may result in new treatment strategies to improve motor outcome after stroke. Imaging techniques such as functional magnetic resonance imaging (fMRI) and positron emission tomography (PET) allow changes in brain activity after stroke recovery to be identified. Objective. To systematically review serial imaging studies on recovery within 6 months poststroke, assess their methodological quality, and identify trends in the association between task-related brain activation patterns and functional upper limb recovery. Methods. A literature search was performed using Medline, PICARTA, and EMBASE databases. Studies were appraised using binary weighted methodological criteria for internal, statistical, and external validity. Results. Twenty-two of the 869 identified studies met the inclusion criteria. Studies showed methodological weaknesses with respect to controlling for task performance, selecting appropriate outcome measures, and adequate presentation and execution of statistical analysis. After stroke, motor task performance shows unilateral overactivation of motor and nonmotor areas, a posterior shift in activity in the primary motor cortex, and bilateral recruitment of associated motor and nonmotor areas. Concomitant with neurological recovery, overactivation appears to diminish longitudinally, but not in all patients. Conclusion . Despite methodological shortcomings and heterogeneity, trends can be discerned. However, statistically sound associations with recovery are not consistent. The challenges in future research will be, controlling for confounding factors, finding outcomes that specifically measure dexterity of the paretic limb, to control for the extent of white matter damage and changes in perfusion in order to establish the longitudinal construct validity of fMRI and PET with regard to upper limb recovery after stroke.

scholarly journals Rehabilitation of Upper Limb in Children with Acquired Brain Injury: A Preliminary Comparative Study

2018 ◽  
Vol 2018 ◽  
pp. 1-12 ◽  
Author(s):  
Elena Beretta ◽  
Ambra Cesareo ◽  
Emilia Biffi ◽  
Carolyn Schafer ◽  
Sara Galbiati ◽  
...  
Keyword(s):  
Upper Limb ◽  
Brain Injuries ◽  
Motor Task ◽  
Clinical Decision ◽  
Positive Influence ◽  
The Body ◽  
Motor Tasks ◽  
Rehabilitation Treatment ◽  
Constraint Induced Movement Therapy ◽  
Wide Range

Acquired brain injuries (ABIs) can lead to a wide range of impairments, including weakness or paralysis on one side of the body known as hemiplegia. In hemiplegic patients, the rehabilitation of the upper limb skills is crucial, because the recovery has an immediate impact on patient quality of life. For this reason, several treatments were developed to flank physical therapy (PT) and improve functional recovery of the upper limbs. Among them, Constraint-Induced Movement Therapy (CIMT) and robot-aided therapy have shown interesting potentialities in the rehabilitation of the hemiplegic upper limb. Nevertheless, there is a lack of quantitative evaluations of effectiveness in a standard clinical setting, especially in children, as well as a lack of direct comparative studies between these therapeutic techniques. In this study, a group of 18 children and adolescents with hemiplegia was enrolled and underwent intensive rehabilitation treatment including PT and CIMT or Armeo®Spring therapy. The effects of the treatments were assessed using clinical functional scales and upper limb kinematic analysis during horizontal and vertical motor tasks. Results showed CIMT to be the most effective in terms of improved functional scales, while PT seemed to be the most significant in terms of kinematic variations. Specifically, PT resulted to have positive influence on distal movements while CIMT conveyed more changes in the proximal kinematics. Armeo treatment delivered improvements mainly in the vertical motor task, showing trends of progresses of the movement efficiency and reduction of compensatory movements of the shoulder with respect to other treatments. Therefore, every treatment gave advantages in a specific and different upper limb district. Therefore, results of this preliminary study may be of help to define the best rehabilitation treatment for each patient, depending on the goal, and may thus support clinical decision.

Motor task manager and upper limb reaching task: Validation of movement analysis

2009 ◽  
Vol 30 ◽  
pp. S57
Author(s):  
M.B. Warner ◽  
A. Novellino ◽  
M.J. Stokes ◽  
A. Astill ◽  
E. Pittaluga
Keyword(s):  
Upper Limb ◽  
Motor Task ◽  
Movement Analysis ◽  
Reaching Task
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