Results 21 to 30 of about 1,626,632 (298)

Validation of grip strength as a measure of frailty in rheumatoid arthritis

open access: yesScientific Reports, 2022
Rheumatoid arthritis (RA) patients often exhibit finger/wrist joint symptoms and reduced grip strength. This study aimed to validate grip strength as a measure of frailty in RA patients. Subjects were 424 female RA patients (mean age ± standard deviation,
Yasumori Sobue   +15 more
doaj   +1 more source

Design and Characterization of a Rolling-Contact Involute Joint and Its Applications in Finger Exoskeletons

open access: yesMachines, 2022
The hand exoskeleton has been widely studied in the fields of hand rehabilitation and grasping assistance tasks. Current hand exoskeletons face challenges in combining a user-friendly design with a lightweight structure and accurate modeling of hand ...
Renghao Liang   +5 more
doaj   +1 more source

Toe-to-Finger Vascularized Joint Transfers for Proximal Interphalangeal Joint Reconstruction: A Systematic Review

open access: yes, 2021
Vascularized joint transfer (VJT) from the proximal interphalangeal joint (PIPJ) of the toe is an attractive reconstructive option in cases of nonsalvageable finger PIPJ but is limited by equivocal functional outcomes.
Graham, DJ   +3 more
core   +1 more source

Flexible and highly sensitive ionic skins with multiple dielectric layers for finger joint bending angle monitoring

open access: yesAlexandria Engineering Journal, 2021
Finger joint motion monitoring is crucial for rehabilitation training and ergonomics. Based on a multilayer dielectric structure, this study proposed flexible and highly sensitive ionic skins (sensors) for the measurement of the bending angles of finger ...
Na Ni
doaj   +1 more source

Development and Evaluation of an Adaptive Multi-DOF Finger with Mechanical-Sensor Integrated for Prosthetic Hand

open access: yesMicromachines, 2020
To realize the adaptive grasping of objects with diverse shapes and to capture the joint angles of the finger, a multi degree of freedom (DOF) adaptive finger for prosthetic hand is proposed in this paper. The fingers are designed with three joints.
Changcheng Wu   +7 more
doaj   +1 more source

Involuntary Neuromuscular Coupling between the Thumb and Finger of Stroke Survivors during Dynamic Movement

open access: yesFrontiers in Neurology, 2018
Finger–thumb coordination is crucial to manual dexterity but remains incompletely understood, particularly following neurological injury such as stroke.
Christopher L. Jones, Derek G. Kamper
doaj   +1 more source

Biomechanical Analysis of the Effect of Finger Joint Configuration on Hand Grasping Performance: Rigid vs Flexible

open access: yesIEEE Transactions on Neural Systems and Rehabilitation Engineering, 2023
Human finger joints are conventionally simplified as rigid joints in robotic hand design and biomechanical hand modelling, due to their anatomic and morphologic complexity. However, our understanding of the effect of the finger joint configuration on the
Yuyang Wei   +4 more
doaj   +1 more source

Cleft hand classification and treatment: literature review [PDF]

open access: yesRevista Brasileira de Cirurgia Plástica, 2022
Cleft hand is a rare congenital deformity characterized by a longitudinal deficiency of the central rays of the hand, which may be associated with other malformations. Due to the wide spectrum of manifestations, the treatment is challenging.
André Gustavo Pontes de Carvalho Pires   +5 more
doaj   +1 more source

Biomechanical Study of Extensor Tendon Lacerations Over the Finger Metacarpophalangeal Joints

open access: yesJournal of Hand Surgery Global Online, 2019
Purpose: To assess the percentages of extensor tendon lacerations over the finger metacarpophalangeal (MCP) joints that may lead to an MCP joint extensor lag. Methods: We obtained 8t fresh-frozen cadaveric hand specimens.
Justin H. Chan, MD   +4 more
doaj   +1 more source

Neural network committees for finger joint angle estimation from surface EMG signals

open access: yesBioMedical Engineering OnLine, 2009
Background In virtual reality (VR) systems, the user's finger and hand positions are sensed and used to control the virtual environments. Direct biocontrol of VR environments using surface electromyography (SEMG) signals may be more synergistic and ...
Reddy Narender P   +2 more
doaj   +1 more source

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