Key result
Exercise altered platelet/plasma concentration ratios for noradrenaline (1855 at rest to 473) and adrenaline (268 to 152), suggesting plasma catecholamine levels influence platelet content.
Why the study?
Does exercise alter the distribution of catecholamines between platelets and plasma in normal human subjects?
Population
13 normal human subjects
Comparison
Exercise vs Rest (baseline)
Design
Other
Authors
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May confound post-exercise platelet catecholamine measurements; hypothesis-generating for sympathetic activity assessment.
Observational (n=13)
Does exercise alter the distribution of catecholamines between platelets and plasma in normal human subjects?
Plasma catecholamine levels influence platelet content, with noradrenaline and adrenaline being highly concentrated in platelets.
Smith et al. (1985) conducted an observational in Normal human subjects (n=13). Exercise vs. Rest was evaluated on Platelet/plasma concentration ratios for noradrenaline and adrenaline. Exercise altered platelet/plasma concentration ratios for noradrenaline (1855 at rest to 473) and adrenaline (268 to 152), suggesting plasma catecholamine levels influence platelet content.
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