Abstract
Background: Prolonged sitting, typical of desk work, decreases cerebral blood flow (CBF), mood and affect. Conversely, short physical activity breaks from sitting may prevent these detrimental effects and provide cardiometabolic benefits. Objective: We evaluated the effect of interrupting prolonged sitting with short breaks of light physical activity combined with tea consumption on CBF, cerebral autoregulation (CA), mood, and affect in desk workers. Methods: Nineteen healthy desk workers (ten male, 27±10 years) performed desk work in a laboratory for six [...]
Highlights
Modern lifestyle is marked with unhealthy habits, including a sedentary behavior characterized by several hours of low energy expenditure, such as prolonged uninterrupted sitting.[1]
We found increases in systolic arterial pressure (SAP), diastolic arterial pressure (DAP) and mean arterial pressure (MAP) and decreases in middle cerebral artery blood velocity (MCAv), CVCi, and heart rate (HR) after 6 hours of sitting
Analysis of peak MCAv and MCAv corrected for baseline values showed a decrease in these parameters over time with no significant difference between the interventions
Summary
Modern lifestyle is marked with unhealthy habits, including a sedentary behavior characterized by several hours of low energy expenditure, such as prolonged uninterrupted sitting.[1] Sedentary lifestyle is a worldwide public health problem,[2] primarily due to its association with increased risk of chronic diseases, such as type 2 diabetes, cancer, osteoporosis and cardiovascular disease (CVD).[3,4,5] In addition, prolonged sitting decreases cerebral blood flow (CBF) and function,[6] and may impair affective and cognitive measures related to mood, affect, and alertness.[7]. Typical of desk work, decreases cerebral blood flow (CBF), mood and affect. Short physical activity breaks from sitting may prevent these detrimental effects and provide cardiometabolic benefits
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