Results 81 to 90 of about 2,071,881 (285)

Study and computer-aided analysis of artificial human wrist [PDF]

open access: yes, 2015
© ASEE 2015The wrist joint is frequently affected by rheumatoid arthritis, resulting in wrist pain, deformity and ultimately loss of function. Artificial wrist implants have been introduced to treat the rheumatoid wrist, to attempt to alleviate pain and
Li, Jeremy (Zheng), Zhang, Jian
core  

A Closed-Form Inverse Kinematic Analytical Method for Seven-DOF Space Manipulator with Aspheric Wrist Structure

open access: yesMachines
The seven-degree-of-freedom space manipulator, characterized by its redundant and aspheric wrist structure, is extensively used in space missions due to its exceptional dexterity and multi-joint capabilities.
Guojun Zhao   +4 more
doaj   +1 more source

Design and control of a robotic wrist orthosis for joint rehabilitation

open access: yesIEEE International Conference on Advanced Intelligent Mechatronics, 2015
Ageing society in many countries has led to an increasing number of stroke and cerebral palsy patients who require rehabilitation therapy. Affected wrist joints often show an increased spasticity and stiffness, caused by impairments of surrounding ...
W. Meng   +5 more
semanticscholar   +1 more source

Wrist Immobilization: Does Elbow and Shoulder Overcompensation Occur When Performing Drinking and Hammering Tasks? [PDF]

open access: yes, 2015
Wrist orthoses, which immobilize or reduce motion at the wrist, may cause difficulties in performing daily tasks as they may affect other nearby joints and muscles of the upper extremity.
McLean, Scott P   +2 more
core   +1 more source

Examining the relationship between joint range of motion and serve speed and hit

open access: yesPhysical Education of Students, 2019
Purpose: In this study, the relationship between the joint range of motion, and the serve speed and hit rate of tennis players was examined. The voluntary participants of this study are tennis players in the university tennis team. Materials and Methods:
M. Soyal, M. Kaya, N.M. Çelik
doaj   +1 more source

Building a Bird: Musculoskeletal Modeling and Simulation of Wing-Assisted Incline Running during Avian Ontogeny [PDF]

open access: yes, 2018
Flapping flight is the most power-demanding mode of locomotion, associated with a suite of anatomical specializations in extant adult birds. In contrast, many developing birds use their forelimbs to negotiate environments long before acquiring “flight ...
Ashley M. Heers   +4 more
core   +3 more sources

Comparison of regression models for estimation of isometric wrist joint torques using surface electromyography

open access: yesJournal of NeuroEngineering and Rehabilitation, 2011
BackgroundSeveral regression models have been proposed for estimation of isometric joint torque using surface electromyography (SEMG) signals. Common issues related to torque estimation models are degradation of model accuracy with passage of time ...
Amirreza Ziai, C. Menon
semanticscholar   +1 more source

Robotic tool change mechanism [PDF]

open access: yes, 1991
An assembly of three major components is disclosed which included a wrist interface plate which is secured to the wrist joint of a robotic arm, a tool interface plate which is secured to each tool intended for use by the robotic arm, and a tool holster ...
Voellmer, George M.
core   +1 more source

Arthroscopy of the Wrist Joint

open access: yesQatar Medical Journal, 2006
Arthroscopy is widely used nowadays for the diagnosis and treatment of increasing numbers of disorders of the knee, shoul-der, elbow, ankle, wrist and hip. Arthroscopy of wrist joint has also been developed as a useful diagnostic device as well as a successful surgical tool in managing disorders of the wrist joint.
openaire   +2 more sources

Forward and inverse kinematics of double universal joint robot wrists [PDF]

open access: yes
A robot wrist consisting of two universal joints can eliminate the wrist singularity problem found on many individual robots. Forward and inverse position and velocity kinematics are presented for such a wrist having three degrees of freedom.
Williams, Robert L., II
core   +1 more source

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