Directional specificity of postural threat on anticipatory postural adjustments during lateral leg raising

This study explored the directional specificity of fear of falling (FoF) effects on the stabilizing function of anticipatory postural adjustments (APA). Participants ( N  = 71) performed a series of lateral leg raises from an elevated surface in three conditions: in the “Control condition”, particip...

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Bibliographic Details
Published in:Experimental brain research 2016-03, Vol.234 (3), p.659-671
Main Authors: Gendre, Manon, Yiou, Eric, Gélat, Thierry, Honeine, Jean-Louis, Deroche, Thomas
Format: Article
Language:English
Subjects:
Adolescent
Adult
Anticipation, Psychological - physiology
Behavior
Bioengineering
Biomechanics
Biomedical and Life Sciences
Biomedicine
Emotions
Female
Human health and pathology
Humans
Hypotheses
Imaging
Leg - physiology
Life Sciences
Male
Mechanics
Motivation
Movement - physiology
Neurology
Neurosciences
Phobias
Physics
Physiological aspects
Postural Balance - physiology
Posture
Psychological aspects
Psychomotor Performance - physiology
Research Article
Tissues and Organs
Young Adult
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Summary:This study explored the directional specificity of fear of falling (FoF) effects on the stabilizing function of anticipatory postural adjustments (APA). Participants ( N  = 71) performed a series of lateral leg raises from an elevated surface in three conditions: in the “Control condition”, participants stood at the middle of the surface; in the two test conditions, participants were positioned at the lateral edge of the surface so that the shift of the whole-body centre-of-mass during APA for leg raising was directed towards the edge (“Approach condition”) or was directed away from the edge (“Avoidance condition”). Results showed that the amplitude of APA was lower in the “Approach condition” than in the “Control condition” ( p  
ISSN:0014-4819
1432-1106
DOI:10.1007/s00221-015-4471-x