Examination of reactive motor responses to Achilles tendon vibrations during an inhibitory stepping reaction time task |
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| Affiliation: | 1. Laboratory “Movement, Interactions, Performance” (E.A. 4334), University of Nantes, France;2. Investigations Clinical Center of Gerontology Department, Teaching Nantes Hospital, France;1. Department of Kinesiology and Health Science, Utah State University, Logan, UT, USA;2. Sorenson Center for Clinical Excellence, Utah State University, Logan, UT, USA;3. Trinity College Institute of Neuroscience, Trinity College Dublin, Ireland;4. Global Brain Health Institute, Trinity College Dublin, Ireland;5. School of Psychology, Trinity College Dublin, Ireland;1. University of Montana, Missoula, MT, USA;2. MedStar National Rehabilitation Hospital, Washington DC, USA;3. MedStar Health Research Institute, Columbia, MD, USA;4. Georgetown University Medical Center, Washington DC, USA;5. George Mason University, Fairfax, VA, USA;6. Washington DC VA Medical Center, Washington, DC, USA;1. German Center for Vertigo and Balance Disorders, University of Munich, Germany;2. Department of Neurology, University of Munich, Germany;3. Schön Klinik Bad Aibling, Germany;4. Institute for Clinical Neuroscience, University of Munich, Germany;1. Graduate Program in Rehabilitation Sciences, Faculty of Medicine, University of British Columbia, Vancouver, Canada;2. Division of Physical Therapy, School of Medicine, Emory University, Atlanta, USA;3. Graduate Program in Neuroscience, Faculty of Medicine, University of British Columbia, Vancouver, Canada;1. Motor Control and Learning Laboratory, Department of Physical Education and Sport Science, Aristotle University of Thessaloniki, Greece;2. Informatics and Telematics Institute, Centre for Research and Technology Hellas, 570 01 Thessaloniki, Greece;3. Université de Bourgogne, Unité de Formation et de Recherche en Sciences et Techniques des Activités Physiques et Sportives, F-21078 Dijon, France;4. Institut National de la Santé et de la Recherche Médicale (INSERM), U1093, Cognition, Action, and Plasticité Sensorimotrice, BP 27877, F-21078 Dijon, France |
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| Abstract: | Inhibition is known to influence balance, step initiation and gait control. A specific subcomponent of inhibition, the perceptual inhibition process, has been suggested to be specifically involved in the integration of proprioceptive information that is necessary for efficient postural responses. This study aimed to investigate the inhibition requirements of planning and executing a choice step initiation task in young adults following experimental perturbation of proprioceptive information using Achilles tendon vibrations. We developed an inhibitory stepping reaction time task in which participants had to step in response to visual arrows that manipulated specific perceptual or motor inhibition according to two proprioceptive configurations: without or with application of vibrations. Performance of twenty-eight participants (mean age 21 years) showed that Achilles tendon vibrations induced an increase in attentional demands (higher reaction time and longer motor responses). Further, this increase in attentional demands did not affect specifically the different inhibitory processes tested in this reactive stepping task. It suggests that attentional demands associated with the vibratory perturbation to postural control do not lead to a shift from automatic to more attentional inhibition processes, at least in young adults. |
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| Keywords: | Inhibitory processes Attentional demands Proprioception Stepping Achilles tendon vibration |
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