OBJECTIVE To assess the prevalence and significance of impaired manual dexterity in hereditary motor and sensory neuropathy type 1a (HMSN 1a), with the Sollerman hand function and the Functional Dexterity test, and compare the reliability and agreement of the tests. DESIGN Descriptive cross-sectional study. SUBJECTS Forty-nine subjects with HMSN 1a. RESULTS Forty-six (94%) subjects had an...

Impaired manual dexterity is commonly observed in schizophrenia. However, a quantitative description of key sensorimotor components contributing to impaired dexterity is lacking. Whether the key components of dexterity are differentially affected and how they relate to clinical characteristics also remains unclear. We quantified the degree of dexterity in 35 stabilized patients with schizophren...

A method for the fast approximation of dexterity indices for given underwater vehicle-manipulator systems (UVMS) configurations is presented. Common underwater tasks are associated with two wellknown dexterity indices and two types of neural networks are designed and trained to approximate each one of them. The method avoids the lengthy calculation of the Jacobian, its determinant and the compu...

Background Clinical features of CharcoteMarieeTooth disease type 1A (CMT1A) include slowly progressive distal muscle weakness, atrophy and sensory loss. Upper-limb involvement results in reduced manual dexterity interfering with the execution of daily activities. Objective To identify which hand function impairments are determinants of manual dexterity in CMT1A. Methods In a cross-sectional, ob...

STUDY DESIGN Retrospective Cohort INTRODUCTION Important outcomes of polliciation to treat thumb hypoplasia/aplasia include strength, function, dexterity, and quality of life. PURPOSE OF THE STUDY To evaluate outcomes and examine predictors of outcome after early childhood pollicization. METHODS 8 children (10 hands) were evaluated 3-15 years after surgery. Physical examination, questionn...

To conduct tasks that need high dexterity by teleoperation, a unified hand/arm master-slave system was developed. To measure the dexterity of individual teleoperation systems all over the world in equal condition, we propose toy block assembling (LEGO) as the benchmark test for teleoperation systems. Meanwhile, a bilateral teleoperation experiment with ETS-VII (Engineering Test Satellite No.7) ...

BACKGROUND Multiple Sclerosis (MS) is the most common disabling neurological disease. Hand dysfunction is one of the main complaints of patients with MS. The present study aimed to compare hand dexterity of MS patients with low Expanded Disability Status Scale (EDSS) scores and healthy adults. It also sought to identify the predictors of disability status of patients with MS based on their manu...

AIM many everyday activities involve manipulation of objects with the fingertips. Impaired performance in manipulative tasks is common in neurodevelopmental disorders. Thus accurate assessment of an individual's ability to coordinate fingertip forces is important for planning treatment. We evaluated a recently developed assessment tool (the Strength-Dexterity Test), which is based on manipulati...

Objectives: The present study aimed to investigate the possible effects of laterality and handedness on higher-order sensory functions and manual dexterity of the elderly. Methods: In this non-experimental cross-sectional study, 58 elderly people aged 60-75 years (35 right-handed) were recruited through a convenience sampling method. Laterality of the selected subjects was examined using the E...

Background: Dysgraphia as a problem with handwriting, affects student’s performance in school activities and participation. The purpose of the study was to compare dexterity and two-point discrimination of the hand between learning disabled students with dysgraphia and healthy students.   Methods: Forty-three students with developmental dysgraphia and 55 normal students in grade t...