8 documents found, page 1 of 1

A comprehensive understanding of postural tone biomechanics: intrinsic stiffnes...

To analyse the relationship between traditional stiffness and muscle antagonist coactivation in both stroke and healthy participants, using linear and nonlinear measures of coactivation and COP during standing, stand-to-sit, and gait initiation. Participants were evaluated through a cross-sectional design. Electromyography, isokinetic dynamometer, and force plate were used to calculate coactivation, intrinsic a...

Effects of demographic and clinical character on differences in self‐care behav...

Introduction: Hemodialysis (HD) patients should be trained to develop selfcare behaviors in order to prevent and preserve their arteriovenous fistula (AVF). The aim of this study was identifying the factors that affect the levels of self-care behavior with AVF by HD patients. Methods: A cross-sectional study was conducted involving 89 patients. Results: Self-care levels were negatively affected by patients' loc...

Modulation of ankle antagonist co-activation during the transition from upright...

Modulation of ankle antagonist co-activation during the transition from upright...

Antagonist co-activation represents a neuronal command for the modulation of muscle synergies with postural control purposes, probably assuming a key role in the characterisation of tonus dysfunction in post-stroke subjects. This study aims to evaluate the ankle antagonist co-activation during different functional tasks in post-stroke subjects. The CONTRA limb presented decreased values in TA/SOL pair during up...

Comparison of upper limb kinematics in two activities of daily living with diff...

Recently, kinematic analysis of the drinking task (DRINK) has been recommended to assess the quality of upper limb (UL) movement after stroke, but the accomplishment of this task may become difficult for poststroke patients with hand impairment. Therefore, it is necessary to study ADLs that involve a simpler interaction with a daily life target, such as the turning on a light task (LIGHT). As the knowledge of m...

Correlation between ankle stiffness and antagonist co-activation in post-stroke...

Tonus dysfunction has been broadly investigated in post-stroke subjects through the evaluation of muscle resistance against stretching, however, its characterisation in functional context is challenging. This study aims to analyse the correlation between intrinsic stiffness, functional stiffness and antagonist co-activation at the ankle joint of post-stroke subjects. Both lower limbs of eight post-stroke partic...

Intrinsic and functional stiffness vs. antagonist co-activation: a correlationa...

Tonus has been considered the basis of central nervous system (CNS) functional adaptation to fulfill the dual purpose of movement and postural control [1]. Among the multiple pathologies of CNS, stroke has been the most investigated in the context of tonus dysfunction, typically through measures involving the evaluation of muscle resistance against stretching at rest [2]. However, the recent evidence demonstrat...

Contributos estratégicos de política comum entre a União Europeia e a União Afr...

Desde os anos 50 África tem registado um historial de instabilidade e um crescendo da violência dos conflitos, alguns dos quais provocaram catástrofes humanitárias, bem como o colapso de muitas economias africanas, fruto de governações corruptas e incapazes de assegurar as funções essenciais do Estado. A percepção desta realidade e das possíveis consequências para a segurança global, bem como a constatação de q...