Parallel morning and evening surge in stroke onset, blood pressure, and physical activity

A circadian variation with a morning peak on waking and arising is known to occur in both blood pressure (BP) and cardiovascular event onset. A second peak in BP has been described to occur after an afternoon sleep (siesta). This study was designed to investigate the hypothesis that the 2-peak diurn...

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Bibliographic Details
Published in:Stroke (1970) 2002-06, Vol.33 (6), p.1480-1486
Main Authors: STERGIOU, George S, VEMMOS, Kostas N, PLIARCHOPOULOU, Kyriaki M, SYNETOS, Andreas G, ROUSSIAS, Leonidas G, MOUNTOKALAKIS, Theodore D
Format: Article
Language:English
Subjects:
Aged
Aged, 80 and over
Biological and medical sciences
Blood Pressure
Circadian Rhythm
Comorbidity
Female
Greece - epidemiology
Heart Rate
Humans
Hypertension - epidemiology
Hypertension - physiopathology
Incidence
Male
Medical sciences
Middle Aged
Monitoring, Ambulatory
Motor Activity
Neurology
Stroke - diagnosis
Stroke - epidemiology
Stroke - physiopathology
Time Factors
Vascular diseases and vascular malformations of the nervous system
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Summary:A circadian variation with a morning peak on waking and arising is known to occur in both blood pressure (BP) and cardiovascular event onset. A second peak in BP has been described to occur after an afternoon sleep (siesta). This study was designed to investigate the hypothesis that the 2-peak diurnal variation of BP is dependent on physical activity and occurs in parallel with the diurnal variation of stroke onset. The diurnal variation of stroke onset was compared with the diurnal variation of BP, pulse rate (PR), and physical activity in 3 independent groups of Greek hypertensives 51 to 80 years of age (633 stroke patients, 379 subjects with 24-hour ambulatory BP monitoring, and 50 subjects with 24-hour physical activity monitoring through wrist devices). The diurnal variation of stroke onset, BP, and PR all showed 1 morning and 1 evening peak with a decline in the afternoon and at night that occurred in parallel with the diurnal variation in physical activity (P
ISSN:0039-2499
1524-4628
DOI:10.1161/01.STR.0000016971.48972.14