In line with the ever-growing aging of Western populations, the development of preventive strategies to slow down the effects of aging on cardiovascular health represents a major challenge in order to preserve functional capacities and a sufficient quality of life in the elderly. The alteration of vascular function (at the cerebral and systemic level) with aging is an important feature in the clinical picture including a decrease in physical and cognitive capacities. Although physical activity is recognized as an essential means of combating the effects of aging, optimizing its effects by defining the most effective strategies of practice remains a key objective. Offering alternative interventions to exercise training is also necessary for people who are unwilling or unable to engage in a physical activity program. In this context, hypoxic conditioning, alone or in conjunction with rehabilitative exercise training, is a new therapeutic modality with strong preclinical validity, in particular from a cardiovascular standpoint, and used in other pathologies to improve cardiovascular function and exercise performance and quality of life. Our aim is, therefore, to investigate the effect of hypoxic conditioning (alone or in conjunction with exercise training) on cerebrovascular health in the elderly.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
QUADRUPLE
Enrollment
64
Hypoxia at rest versus normoxia at rest; Hypoxia during exercise versus Normoxia during exercise.
CHU Grenoble Alpes
La Tronche, Auvergne-Rhône-Alpes, France
RECRUITINGMiddle cerebral artery flow velocity
Changes in middle cerebral artery flow velocity in response to hypercapnia (5% CO2)
Time frame: Before intervention; right after intervention; 2 months after intervention
Peak oxygen uptake
Peak oxygen uptake during a cardiopulmonary exercise test
Time frame: Before intervention; right after intervention; 2 months after intervention
Flow-mediated dilation
Flow-mediated dilation in response to ischemia-reperfusion of the brachial artery
Time frame: Before intervention; right after intervention; 2 months after intervention
Blood pressure
24h (systolic, diastolic and mean) blood pressure assessment
Time frame: Before intervention; right after intervention; 2 months after intervention
Sleep
Sleep features assessed by polygraphy
Time frame: Before intervention; right after intervention; 2 months after intervention
Cognitive function
Cognitive function assessed by the Montreal Cognitive Assessment questionnaire
Time frame: Before intervention; right after intervention; 2 months after intervention
Health-related quality of life
Health-related quality of life assessed by the SF-36 questionnaire
Time frame: Before intervention; right after intervention; 2 months after intervention
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