Large lateral head movements and postural control.
Type de document :
Article dans une revue scientifique: Article original
PMID :
URL permanente :
Titre :
Large lateral head movements and postural control.
Auteur(s) :
Bonnet, Cédrick T. [Auteur]
Laboratoire de Neurosciences Fonctionnelles et Pathologies
Despretz, Pascal [Auteur]
Laboratoire de Neurosciences Fonctionnelles et Pathologies
Laboratoire de Neurosciences Fonctionnelles et Pathologies
Despretz, Pascal [Auteur]
Laboratoire de Neurosciences Fonctionnelles et Pathologies
Titre de la revue :
Human movement science
Nom court de la revue :
Hum Mov Sci
Numéro :
31
Pagination :
1541-51
Date de publication :
2012-12-01
ISSN :
1872-7646
Mot(s)-clé(s) en anglais :
Adolescent
Female
Fixation
Ocular
Head Movements
Humans
Intention
Male
Motion Perception
Motor Activity
Orientation
Postural Balance
Weight-Bearing
Young Adult
Female
Fixation
Ocular
Head Movements
Humans
Intention
Male
Motion Perception
Motor Activity
Orientation
Postural Balance
Weight-Bearing
Young Adult
Discipline(s) HAL :
Sciences cognitives
Résumé en anglais : [en]
Riccio and Stoffregen (1988) have suggested that task performance is the predominant constraint of change in postural control. To test this hypothesis, 12 healthy, young adults performed large lateral gaze shifts (left/right ...
Lire la suite >Riccio and Stoffregen (1988) have suggested that task performance is the predominant constraint of change in postural control. To test this hypothesis, 12 healthy, young adults performed large lateral gaze shifts (left/right gaze shifts with a visual angle of 150° and at a frequency of 0.5 Hz or 1 Hz) and a control condition (looking at a stationary dot). Performance in the visual task was expected to be good under all conditions. In accordance with Riccio and Stoffregen's hypothesis, the center of pressure sway variability (range or standard deviation) was expected to be similar in the three visual tasks when a destabilizing, narrow stance was adopted. Indeed, body sway had to be restrained in narrow stance to adequately perform the task. In standard and wide stance conditions, the center of pressure sway variability was expected to be larger when gaze shifts were performed. Indeed, in these more stable stance conditions, the task could be performed successfully in minimizing energy expenditure, that is, in letting body sway increase naturally. The results were consistent with these expectations. On a practical level, intentional, large gaze shifts may not cause postural instability per se, even though postural sway may increase significantly.Lire moins >
Lire la suite >Riccio and Stoffregen (1988) have suggested that task performance is the predominant constraint of change in postural control. To test this hypothesis, 12 healthy, young adults performed large lateral gaze shifts (left/right gaze shifts with a visual angle of 150° and at a frequency of 0.5 Hz or 1 Hz) and a control condition (looking at a stationary dot). Performance in the visual task was expected to be good under all conditions. In accordance with Riccio and Stoffregen's hypothesis, the center of pressure sway variability (range or standard deviation) was expected to be similar in the three visual tasks when a destabilizing, narrow stance was adopted. Indeed, body sway had to be restrained in narrow stance to adequately perform the task. In standard and wide stance conditions, the center of pressure sway variability was expected to be larger when gaze shifts were performed. Indeed, in these more stable stance conditions, the task could be performed successfully in minimizing energy expenditure, that is, in letting body sway increase naturally. The results were consistent with these expectations. On a practical level, intentional, large gaze shifts may not cause postural instability per se, even though postural sway may increase significantly.Lire moins >
Langue :
Anglais
Comité de lecture :
Oui
Audience :
Internationale
Vulgarisation :
Non
Établissement(s) :
Université de Lille
CNRS
CHU Lille
CNRS
CHU Lille
Collections :
Date de dépôt :
2019-06-05T18:19:42Z
2019-07-17T08:22:33Z
2021-05-21T11:51:04Z
2021-06-24T09:35:24Z
2021-08-08T06:27:12Z
2021-08-12T06:12:34Z
2021-09-24T07:59:57Z
2019-07-17T08:22:33Z
2021-05-21T11:51:04Z
2021-06-24T09:35:24Z
2021-08-08T06:27:12Z
2021-08-12T06:12:34Z
2021-09-24T07:59:57Z
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- Bonnet and Despretz, 2012.pdf
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