نتایج جستجو برای: gait

تعداد نتایج: 26239  

Journal: :Gait & posture 2013
Katherine M Steele Ajay Seth Jennifer L Hicks Michael H Schwartz Scott L Delp

The goals of this study were to determine if the muscle contributions to vertical and fore-aft acceleration of the mass center differ between crouch gait and unimpaired gait and if these muscle contributions change with crouch severity. Examining muscle contributions to mass center acceleration provides insight into the roles of individual muscles during gait and can provide guidance for treatm...

Journal: :Movement disorders : official journal of the Movement Disorder Society 1998
J M Hausdorff M E Cudkowicz R Firtion J Y Wei A L Goldberger

The basal ganglia are thought to play an important role in regulating motor programs involved in gait and in the fluidity and sequencing of movement. We postulated that the ability to maintain a steady gait, with low stride-to-stride variability of gait cycle timing and its subphases, would be diminished with both Parkinson's disease (PD) and Huntington's disease (HD). To test this hypothesis, ...

Journal: :Current opinion in pediatrics 2007
Unni G Narayanan

PURPOSE OF REVIEW The literature was reviewed to describe the role of gait analysis in the orthopaedic management of ambulatory children with cerebral palsy and examine the current best evidence to support these roles. RECENT FINDINGS Gait laboratory analysis is superior to visual or observational analysis of gait because it provides an objective record of gait that is able to quantify the ma...

Journal: :Journal of biomechanics 2015
Peter B Shull Yangjian Huang Taylor Schlotman Jeffrey A Reinbolt

While gait retraining paradigms that alter knee loads typically focus on modifying kinematics, the underlying muscle force modifications responsible for these kinematic changes remain largely unknown. As humans are generally thought to select uniform gait muscle patterns such as strategies based on fatigue cost functions or energy minimization, we hypothesized that a kinematic gait change known...

Journal: :Journal of orthopaedic research : official publication of the Orthopaedic Research Society 2009
Benjamin J Fregly Darryl D D'Lima Clifford W Colwell

Gait modification offers a noninvasive option for offloading the medial compartment of the knee in patients with knee osteoarthritis. While gait modifications have been proposed based on their ability to reduce the external knee adduction moment, no gait pattern has been proven to reduce medial compartment contact force directly. This study used in vivo contact force data collected from a singl...

2018
Cecilia Rohdin Karin Hultin Jäderlund Ingrid Ljungvall Kerstin Lindblad-Toh Jens Häggström

The objective of this prospective study was to determine the prevalence of gait abnormalities in a cohort of Swedish pugs by using an owner-based questionnaire targeting signs of gait abnormality and video footage showing the dog's gait. This study also evaluated associated conditions of abnormal gait, including other health disorders prevalent in the breed. Five hundred and fifty (550) pugs re...

2016
Du-Xin Liu Xinyu Wu Wenbin Du Can Wang Tiantian Xu

Gait phase is widely used for gait trajectory generation, gait control and gait evaluation on lower-limb exoskeletons. So far, a variety of methods have been developed to identify the gait phase for lower-limb exoskeletons. Angular sensors on lower-limb exoskeletons are essential for joint closed-loop controlling; however, other types of sensors, such as plantar pressure, attitude or inertial m...

Journal: :Journal of biomechanics 2010
Katherine M Steele Ajay Seth Jennifer L Hicks Michael S Schwartz Scott L Delp

Pathological movement patterns like crouch gait are characterized by abnormal kinematics and muscle activations that alter how muscles support the body weight during walking. Individual muscles are often the target of interventions to improve crouch gait, yet the roles of individual muscles during crouch gait remain unknown. The goal of this study was to examine how muscles contribute to mass c...

2016
Hirotaka Uchitomi Ken-ichiro Ogawa Satoshi Orimo Yoshiaki Wada Yoshihiro Miyake

UNLABELLED Although human walking gait rhythms are generated by native individual gait dynamics, these gait dynamics change during interactions between humans. A typical phenomenon is synchronization of gait rhythms during cooperative walking. Our previous research revealed that fluctuation characteristics in stride interval of subjects with Parkinson's disease changed from random to 1/f fluctu...

2015
Tino Stöckel Robert Jacksteit Martin Behrens Ralf Skripitz Rainer Bader Anett Mau-Moeller

The link between mental representation (MREP) structures and motor performance has been evidenced for a great variety of movement skills, but not for the human gait. Therefore the present study sought to investigate the cognitive memory structures underlying the human gait in young and older adults. In a first experiment, gait parameters at comfortable gait speed (OptoGait) were compared with g...

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