Brain activation can be studied using the Functional Near InfraRed Spectroscopy (fNIRS). It was shown that CPF activation during walking and during dual task could be different in stroke patients and in healthy subjects. To date, fNIRS reliability is not completely established during walking and during dual task. Therefore, this study will examine the reproducibility of fNIRS parameters during simple walking and during dual task in healthy subjects and in stroke patients.
A fNIRS system will be used to measure the CPF activation. The subjects will walk at their preferred speed on 10 m 3 times and while doing a cognitive task (dual task) 3 times also (in a random order). The same test will be repeated five minutes later. The fNIRS system will be retired and the same test will be repeated 10 min later.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
PREVENTION
Masking
NONE
Enrollment
46
All participants will undergo Functional Near-Infrared Spectroscopy (fNIRS). The hemodynamic response in CPF will be measured using an Octomon+ system (Artinis). Eight emission and two detector probes will be arranged on the participant's forehead.
Centre de Réadaptation Fonctionnelle et d'Appareillage Le Coteau
La Chapelle-Saint-Mesmin, France
Chu Limoges
Limoges, France
CHR Orléans
Orléans, France
Oxyhemoglobin (HbO) variations during simple walking and during dual task
HbO will be measured by the NIR spectrometry technique continuously at rest and during walking. This technique allows to measure the variations of HbO concentration by measuring the variations of light absorption by the explored tissues.
Time frame: Day 0
Deoxyhemoglobin (HbR) variations during simple walking and during dual task
HbR will be measured by the NIR spectrometry technique continuously at rest and during walking. This technique allows to measure the variations of HbR concentration by measuring the variations of light absorption by the explored tissues.
Time frame: Day 0
Oxyhemoglobin (HbO) variations of acute stroke patients
Time frame: Day 0
Deoxyhemoglobin (HbR) variations of acute stroke patients
Time frame: Day 0
Oxyhemoglobin (HbO) variations of subacute stroke patients
Time frame: Day 0
Deoxyhemoglobin (HbR) variations of subacute stroke patients
Time frame: Day 0
Oxyhemoglobin (HbO) variations using different mathematical treatments.
Time frame: Day 0
Deoxyhemoglobin (HbR) variations using different mathematical treatments.
Time frame: Day 0
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