نتایج جستجو برای: gait signal

تعداد نتایج: 443938  

Journal: :Journal of biomechanics 2012
Katherine M Steele Marjolein M van der Krogt Michael H Schwartz Scott L Delp

Muscle weakness is commonly cited as a cause of crouch gait in individuals with cerebral palsy; however, outcomes after strength training are variable and mechanisms by which muscle weakness may contribute to crouch gait are unclear. Understanding how much muscle strength is required to walk in a crouch gait compared to an unimpaired gait may provide insight into how muscle weakness contributes...

2009
Mayu Okumura Yasushi Makihara Shinsuke Nakamura Shigeo Morishima Yasushi Yagi

This paper presents a method to measure online the gait features from the gait silhouette images and reflect the gait features to CG characters for an audience-participation digital entertainment. First, both static and dynamic gait features are extracted from the silhouette images captured by the online gait measurement system with two cameras and a chroma-key background. Then, Standard Gait M...

2013
Philipp Mahlknecht Stefan Kiechl Bastiaan R. Bloem Johann Willeit Christoph Scherfler Arno Gasperi Gregorio Rungger Werner Poewe Klaus Seppi

BACKGROUND Although gait disorders are common in the elderly, the prevalence and overall burden of these disorders in the general community is not well defined. METHODS In a cross-sectional investigation of the population-based Bruneck Study cohort, 488 community-residing elderly aged 60-97 years underwent a thorough neurological assessment including a standardized gait evaluation. Gait disor...

Journal: :World Journal Of Advanced Research and Reviews 2021

Central Pattern Generator (CPG) plays a significant role in the generation of diverse and stable gaits patterns for animals as well controlling their locomotion. The main contributions this paper are ability to develop Cartesian motor skills coordinating legs quadruped robot gait adaption its nominal characteristics with CPG approach. Primary, predefined relationship between an excitation signa...

Journal: :journal of artificial intelligence in electrical engineering 2015
mohammad reza sayyed noorani pouya nourfar

in this paper we intend to generate some set of optimal trajectories according to the number of control points has been applied for parameterizing those using b-spline curves. the trajectories are used to generate an optimal locomotion gait in a crawling worm-like robot. due to gait design considerations it is desired to minimize the required torques in a cycle of gait. similar to caterpillars,...

Journal: :Prosthetics and orthotics international 1998
T Suga O Kameyama R Ogawa M Matsuura H Oka

The authors have developed a knee-ankle-foot orthosis with a joint unit that controls knee movements using a microcomputer (Intelligent Orthosis). The Intelligent Orthosis was applied to normal subjects and patients, and gait analysis was performed. In the gait cycle, the ratio of the stance phase to the swing phase was less in gait with the knee locked using a knee-ankle-foot orthosis than in ...

2013
Julien Boudarham Nicolas Roche Didier Pradon Céline Bonnyaud Djamel Bensmail Raphael Zory

In addition to changes in spatio-temporal and kinematic parameters, patients with stroke exhibit fear of falling as well as fatigability during gait. These changes could compromise interpretation of data from gait analysis. The aim of this study was to determine if the gait of hemiplegic patients changes significantly over successive gait trials. Forty two stroke patients and twenty healthy sub...

2017
Johannes C M Schlachetzki Jens Barth Franz Marxreiter Julia Gossler Zacharias Kohl Samuel Reinfelder Heiko Gassner Kamiar Aminian Bjoern M Eskofier Jürgen Winkler Jochen Klucken

Distinct gait characteristics like short steps and shuffling gait are prototypical signs commonly observed in Parkinson's disease. Routinely assessed by observation through clinicians, gait is rated as part of categorical clinical scores. There is an increasing need to provide quantitative measurements of gait, e.g. to provide detailed information about disease progression. Recently, we develop...

2011
Andreia S. P. Sousa

The electromyogram is the summation of the motor unit action potentials occurring during contraction measured at a given electrode location. The voltage potential of the surface electromyographic signal detected by electrodes strongly depends on several factors, varying between individuals and also over time within an individual. Thus, the amplitude of the EMG signal itself is not useful in gro...

2015
Kyungho Lee Yoonsang Lee Soon-Sun Kwon Jiwon Jeong Carol O’Sullivan Moon Seok Park Jehee Lee

Normal gait is a pattern of walking that humans normally adopt in undisturbed situations. Gait patterns are considered to be either abnormal or impaired if they do not satisfy certain key attributes of normal gait. It has previously been postulated that normal gait is more energy efficient than abnormal or impaired gait. However, it is not clear whether a normal gait pattern is also superior to...

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