Aging effects on prefrontal cortex oxygenation in a posture-cognition dual-task: an fNIRS pilot study

Abstract Background The aging process alters upright posture and locomotion control from an automatically processed to a more cortically controlled one. The present study investigated a postural-cognitive dual-task paradigm in young and older adults using functional Near-Infrared Spectroscopy (fNIRS...

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Main Authors: Uros Marusic, Wolfgang Taube, Shawnda A. Morrison, Lea Biasutti, Bruno Grassi, Kevin De Pauw, Romain Meeusen, Rado Pisot, Jan Ruffieux
Format: Article
Language:English
Published: BMC 2019-01-01
Series:European Review of Aging and Physical Activity
Subjects:
Online Access:http://link.springer.com/article/10.1186/s11556-018-0209-7
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author Uros Marusic
Wolfgang Taube
Shawnda A. Morrison
Lea Biasutti
Bruno Grassi
Kevin De Pauw
Romain Meeusen
Rado Pisot
Jan Ruffieux
author_facet Uros Marusic
Wolfgang Taube
Shawnda A. Morrison
Lea Biasutti
Bruno Grassi
Kevin De Pauw
Romain Meeusen
Rado Pisot
Jan Ruffieux
author_sort Uros Marusic
collection DOAJ
description Abstract Background The aging process alters upright posture and locomotion control from an automatically processed to a more cortically controlled one. The present study investigated a postural-cognitive dual-task paradigm in young and older adults using functional Near-Infrared Spectroscopy (fNIRS). Methods Twenty healthy participants (10 older adults 72 ± 3 y, 10 young adults 23 ± 3 y) performed a cognitive (serial subtractions) and a postural task (tandem stance) as single-tasks (ST) and concurrently as a dual-task (DT) while the oxygenation levels of the dorsolateral prefrontal cortex (DLPFC) were measured. Results In the cognitive task, young adults performed better than older adults in both conditions (ST and DT) and could further increase the number of correct answers from ST to DT (all ps ≤ 0.027) while no change was found for older adults. No significant effects were found for the postural performance. Cerebral oxygenation values (O2Hb) increased significantly from baseline to the postural ST (p = 0.033), and from baseline to the DT (p = 0.031) whereas no changes were found in deoxygenated hemoglobin (HHb). Finally, the perceived exertion differed between all conditions (p ≤ 0.003) except for the postural ST and the DT (p = 0.204). Conclusions There was a general lack of age-related changes except the better cognitive performance under motor-cognitive conditions in young compared to older adults. However, the current results point out that DLPFC is influenced more strongly by postural than cognitive load. Future studies should assess the different modalities of cognitive as well as postural load.
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spelling doaj.art-1a2b7d2766bc4f4f9deb7e45d891f6fc2022-12-21T19:01:48ZengBMCEuropean Review of Aging and Physical Activity1813-72531861-69092019-01-011611710.1186/s11556-018-0209-7Aging effects on prefrontal cortex oxygenation in a posture-cognition dual-task: an fNIRS pilot studyUros Marusic0Wolfgang Taube1Shawnda A. Morrison2Lea Biasutti3Bruno Grassi4Kevin De Pauw5Romain Meeusen6Rado Pisot7Jan Ruffieux8Institute for Kinesiology Research, Science and Research Centre KoperDepartment of Neurosciences and Movement Sciences, University of FribourgDepartment of kinesiology and physiotherapy, Faculty of Health Sciences, University of PrimorskaDepartment of Medical and Biological Sciences, Udine UniversityDepartment of Medical and Biological Sciences, Udine UniversityResearch Group Human Physiology, Vrije Universiteit BrusselResearch Group Human Physiology, Vrije Universiteit BrusselInstitute for Kinesiology Research, Science and Research Centre KoperDepartment of Neurosciences and Movement Sciences, University of FribourgAbstract Background The aging process alters upright posture and locomotion control from an automatically processed to a more cortically controlled one. The present study investigated a postural-cognitive dual-task paradigm in young and older adults using functional Near-Infrared Spectroscopy (fNIRS). Methods Twenty healthy participants (10 older adults 72 ± 3 y, 10 young adults 23 ± 3 y) performed a cognitive (serial subtractions) and a postural task (tandem stance) as single-tasks (ST) and concurrently as a dual-task (DT) while the oxygenation levels of the dorsolateral prefrontal cortex (DLPFC) were measured. Results In the cognitive task, young adults performed better than older adults in both conditions (ST and DT) and could further increase the number of correct answers from ST to DT (all ps ≤ 0.027) while no change was found for older adults. No significant effects were found for the postural performance. Cerebral oxygenation values (O2Hb) increased significantly from baseline to the postural ST (p = 0.033), and from baseline to the DT (p = 0.031) whereas no changes were found in deoxygenated hemoglobin (HHb). Finally, the perceived exertion differed between all conditions (p ≤ 0.003) except for the postural ST and the DT (p = 0.204). Conclusions There was a general lack of age-related changes except the better cognitive performance under motor-cognitive conditions in young compared to older adults. However, the current results point out that DLPFC is influenced more strongly by postural than cognitive load. Future studies should assess the different modalities of cognitive as well as postural load.http://link.springer.com/article/10.1186/s11556-018-0209-7Postural controlBalanceDual-taskingExecutive controlElderlyAging
spellingShingle Uros Marusic
Wolfgang Taube
Shawnda A. Morrison
Lea Biasutti
Bruno Grassi
Kevin De Pauw
Romain Meeusen
Rado Pisot
Jan Ruffieux
Aging effects on prefrontal cortex oxygenation in a posture-cognition dual-task: an fNIRS pilot study
European Review of Aging and Physical Activity
Postural control
Balance
Dual-tasking
Executive control
Elderly
Aging
title Aging effects on prefrontal cortex oxygenation in a posture-cognition dual-task: an fNIRS pilot study
title_full Aging effects on prefrontal cortex oxygenation in a posture-cognition dual-task: an fNIRS pilot study
title_fullStr Aging effects on prefrontal cortex oxygenation in a posture-cognition dual-task: an fNIRS pilot study
title_full_unstemmed Aging effects on prefrontal cortex oxygenation in a posture-cognition dual-task: an fNIRS pilot study
title_short Aging effects on prefrontal cortex oxygenation in a posture-cognition dual-task: an fNIRS pilot study
title_sort aging effects on prefrontal cortex oxygenation in a posture cognition dual task an fnirs pilot study
topic Postural control
Balance
Dual-tasking
Executive control
Elderly
Aging
url http://link.springer.com/article/10.1186/s11556-018-0209-7
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