Fish consumption and cardiovascular response during mental stress

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Background: Frequent fish consumption is related to a lower risk of coronary heart disease. However, the physiological mechanisms underlying this cardioprotective effect are as yet unknown. We therefore examined certain cardiovascular physiological variables of fish eaters during rest, whilst conducting mental arithmetic, and during recovery. Findings: The participants were 12 fish eaters (eating baked fish more than 3-4 times/week) and 13 controls (eating fish less than 1-2 times/week). Analysis of the collected data revealed that heart rate, blood pressure, and pulse wave velocity were significantly lower and pre-ejection period and baroreflex sensitivity were significantly higher in the fish eaters than in the controls during both rest and mental arithmetic, and that systolic and mean blood pressure recovery from mental arithmetic were faster in the fish eaters than in the controls. Conclusions: These findings suggest a possible physiological mechanism that may explain why frequent fish consumption reduces coronary heart disease risk. © 2012 Matsumura et al.




Matsumura, K., Yamakoshi, T., Noguchi, H., Rolfe, P., & Matsuoka, Y. (2012). Fish consumption and cardiovascular response during mental stress. BMC Research Notes, 5.

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