Results 11 to 20 of about 76,047 (257)

Control of posture with FES systems [PDF]

Medical Engineering & Physics, 2002
One of the major obstacles in restoration of functional FES supported standing in paraplegia is the lack of knowledge of a suitable control strategy. The main issue is how to integrate the purposeful actions of the non-paralysed upper body when interacting with the environment while standing, and the actions of the artificial FES control system ...
Matjacic, Zlatko, Hunt, K., Gollee, H., Sinkjær, Thomas; id_orcid 0000-0003-3190-9164   +3 more
openaire   +3 more sources

Two-Dimensional Automatic Control Modeling of a Posture Control System [PDF]

International Journal of Occupational Safety and Ergonomics, 1998
A posture control model has been developed on the basis of the 2-dimensional feedback control theory. Human postural characteristics were investigated in 5 healthy participants. Tests were performed with eyes open and eyes closed. After 5 s of quiet standing, each participant was unexpectedly pulled forward by 30 mm at his pelvis height and then ...
Kyung S, Park, Un H, Kim
openaire   +2 more sources

Do adolescent idiopathic scoliosis (AIS) neglect proprioceptive information in sensory integration of postural control? [PDF]

PLoS ONE, 2012
INTRODUCTION: It has been reported that AIS rely much more on ankle proprioception to control the amplitude of the balance control commands as compared to age-matched healthy adolescents.
Christine Assaiante, Sophie Mallau, Jean-Luc Jouve, Gérard Bollini, Marianne Vaugoyeau   +4 more
doaj   +1 more source

Cortical control of posture in fine motor skills: evidence from inter-utterance rest position

Frontiers in Human Neuroscience, 2023
The vocal tract continuously employs tonic muscle activity in the maintenance of postural configurations. Gamma-band activity in the sensorimotor cortex underlies transient movements during speech production, yet little is known about the neural control ...
Eric Easthope, Arian Shamei, Yadong Liu, Bryan Gick, Bryan Gick, Sidney Fels   +5 more
doaj   +1 more source

Optimal controllers resembling postural sway during upright stance.

PLoS ONE, 2023
The human postural control system can maintain our balance in an upright stance. A simplified control model that can mimic the mechanisms of this complex system and adapt to the changes due to aging and injuries is a significant problem that can be used ...
Hedyeh Jafari, Thomas Gustafsson
doaj   +1 more source

Effects of the Loss of Binocular and Motion Parallax on Static Postural Stability

Sensors, 2023
Depth information is important for postural stability and is generated by two visual systems: binocular and motion parallax. The effect of each type of parallax on postural stability remains unclear.
Keita Ishikawa, Naoya Hasegawa, Ayane Yokoyama, Yusuke Sakaki, Hiromasa Akagi, Ami Kawata, Hiroki Mani, Tadayoshi Asaka   +7 more
doaj   +1 more source

Effect of dual-task interaction combining postural and visual perturbations on cortical activity and postural control ability

NeuroImage, 2023
Previous studies have suggested cortical involvement in postural control in humans by measuring cortical activities and conducting dual-task paradigms.
Ryoki Nishimoto, Sayaka Fujiwara, Yumiko Kutoku, Toru Ogata, Masahito Mihara   +4 more
doaj   +1 more source

The Effects of Transcranial Direct Current Stimulation (tDCS) Combined With Proprioceptive Training for Blind Individuals: The Study Protocol for a Randomized Controlled Clinical Trial

Frontiers in Neurology, 2020
To maintain the balance, the postural system needs to integrate the three main sensorial systems: visual, vestibular, and somatosensory to keep postural control within the limits of stabilization. Damage of one of these systems, in this case, the vision,
Rodolfo Borges Parreira, Rodolfo Borges Parreira, Jamile Benite Palma Lopes, Milena Santana França, Mayara Bernardo Albuquerque, Lorraine Barbosa Cordeiro, Deborah Carvalho da Silva Cardoso, Veronica Cimolin, Manuela Galli, Claudia Santos Oliveira, Claudia Santos Oliveira   +10 more
doaj   +1 more source

Balance perturbation system to improve balance compensatory responses during walking in old persons

Journal of NeuroEngineering and Rehabilitation, 2010
Ageing commonly disrupts the balance control and compensatory postural responses that contribute to maintaining balance and preventing falls during perturbation of posture. This can lead to increased risk of falling in old adults (65 years old and over).
Melzer Itshak, Shapiro Amir
doaj   +1 more source

Role of Visual Dysfunction in Postural Control in Children With Cerebral Palsy

Neural Plasticity, 2005
Introduction: Deficient postural control is one of the key problems in cerebral palsy (CP). Little, however, is known about the specific nature of postural problems of children with CP, nor of the relation between abnormal posture and dysfunction of the ...
G. Porro, D. van der Linden, O. van Nieuwenhuizen, D. Wittebol-Post   +3 more
doaj   +1 more source