Wrist (Walker–Murdoch) and Thumb (Steinberg) Signs
نویسندگان
چکیده
منابع مشابه
Human Kinematic Factor for Haptic Manipulation: The Wrist to Thumb
The range of human kinematic motion as well as force resolution should be known for design of a haptic device. In addition, a haptic interface can be designed more easily when master and slave devices are the same kinematically. However, human kinematic factors have not been analyzed and applied deeply because of their complexity. Although calibration techniques have been developed, there is a ...
متن کاملSigns of muscle thixotropy during human ballistic wrist joint movements.
A study was conducted on healthy subjects to determine whether voluntary ballistic wrist flexion movements are influenced by immediately preceding conditioning of the forearm muscles. Single rapid wrist flexion movements were made in response to an auditory "Go" signal. Rectified surface EMG was recorded from wrist flexors and extensors, and joint position was measured by a goniometer. The move...
متن کاملPronator teres is an appropriate donor muscle for restoration of wrist and thumb extension.
OBJECTIVE To compare the detailed architectural properties of the pronator teres (PT), extensor carpi radialis brevis (ECRB), and extensor pollicis longus (EPL) muscles to evaluate the suitability of PT-to-ECRB and PT-to-EPL surgical procedures. METHODS Muscle physiologic cross-sectional areas and region-specific muscle fiber lengths were measured in cadaveric PT, ECRB, and EPL muscles (n = 1...
متن کاملSteinberg Modules and Donkin Pairs
We prove that in characteristic p > 0 a module with good filtration for a group of type E6 restricts to a module with good filtration for a group of type F4. Thus we confirm a conjecture of Brundan for one more case. Our method relies on the canonical Frobenius splittings of Mathieu. Next we settle the remaining cases, in characteristic not 2, with a computer-aided variation on the old method o...
متن کاملThe Steinberg Representation
Introduction. Group representations occupy a sort of middle ground between abstract groups and transformation groups, i.e., groups acting in concrete ways as permutations of sets, homeomorphisms of topological spaces, diffeomorphisms of manifolds, etc. The requirement that the elements of a group act as linear operators on a vector space limits somewhat the complexity of the action without sacr...
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ژورنال
عنوان ژورنال: MAMC Journal of Medical Sciences
سال: 2017
ISSN: 2394-7438
DOI: 10.4103/mamcjms.mamcjms_22_17