Key result
High intensity interval training is proposed to provide a superior stimulus compared to moderate intensity continuous training for improving cardiorespiratory fitness, cerebrovascular outcomes, and cognitive function in patients with cardiovascular disease.
Why the study?
Adults with cardiovascular disease and heart failure face elevated risks of cognitive decline, making the utility of high intensity interval training for improving cognitive aging an important area of research.
Does high intensity interval training improve cognitive aging and cerebrovascular function in adults with cardiovascular disease and heart failure?
Does high intensity interval training improve cognitive aging and cerebrovascular function in adults with cardiovascular disease and heart failure?
This review highlights the physiological rationale for using high-intensity interval training to mitigate cognitive decline and improve cerebrovascular function in patients with cardiovascular disease.
HIIT may mitigate cognitive decline in CVD; hypothesis-generating and requires RCTs before practice consideration.
Adults with cardiovascular disease and heart failure are at higher risk of cognitive decline. Cerebral hypoperfusion appears to be a significant contributor, which can result from vascular dysfunction and impairment of cerebral blood flow regulation. In contrast, higher cardiorespiratory fitness shows protection against brain atrophy, reductions in cerebral blood flow, and cognitive decline. Given that high intensity interval training (HIIT) has been shown to be a potent stimulus for improving cardiorespiratory fitness and peripheral vascular function, its utility for improving cognitive aging is an important area of research. This article will review the physiology related to cerebral blood flow regulation and cognitive decline in adults with cardiovascular disease and heart failure, and how HIIT may provide a more optimal stimulus for improving cognitive aging in this population.
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Taylor et al. (2022) conducted a review in Cardiovascular disease and heart failure. High intensity interval training (HIIT) vs. Moderate intensity continuous training (MICT) or control was evaluated. High intensity interval training is proposed to provide a superior stimulus compared to moderate intensity continuous training for improving cardiorespiratory fitness, cerebrovascular outcomes, and cognitive function in patients with cardiovascular disease.
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