Cerebrovascular adaptations to habitual resistance exercise with aging

Area of Science:

• Exercise physiology
• Neuroscience
• Cardiovascular science

Background:

• Resistance training (RT) offers numerous physiological benefits, including improved metabolism, bone density, and cardiovascular health.
• However, the specific effects of chronic RT on cerebrovascular adaptations remain unclear.
• RT is linked to changes in arterial properties, potentially impacting cerebral blood flow (CBF).

Purpose of the Study:

• To synthesize current literature on cerebrovascular adaptations to RT across the lifespan.
• To identify knowledge gaps regarding the long-term effects of RT on cerebral hemodynamics.
• To provide a mechanistic understanding of RT's impact on brain health, aging, and cerebral vasculature.

Main Methods:

• This is a narrative review synthesizing existing research.
• Literature search focused on cerebrovascular adaptations to RT.
• Analysis of studies examining RT's effects on arterial compliance, endothelial function, and CBF.

Main Results:

• RT is associated with improved peripheral arterial function but reduced central arterial compliance.
• Potential for blood pressure fluctuations during RT to impact cerebral microvasculature.
• Reductions in CBF are a known factor in aging and neurodegeneration, but RT's role is not fully elucidated.

Conclusions:

• Further research is needed to clarify the long-term cerebrovascular consequences of RT.
• Understanding these adaptations is crucial for optimizing brain health and mitigating neurodegenerative risks associated with aging.
• RT's impact on cerebral hemodynamics requires specific investigation within the context of aging and overall brain health.