Postural hemodynamic parameters in older persons have a seasonal dependency
Trozic, I.; Platzer, D.; Fazekas, F.; Bondarenko, A.I.; Brix, B.; Rössler, A.; Goswami, N. · Zeitschrift für Gerontologie und Geriatrie · 2019 · Heft 3 · S. 145 bis 155
Bibliografische Angaben
Zusammenfassung
IntroductionIt is well known that blood pressure is elevated in winter compared to summer [1, 9]. Specifically, systolic blood pressure decreases with increasing temperature and the exposure temperature has been reported to influence the autonomic nervous system [25]. Orthostasis means upright standing, which induces redistribution of blood to the lower body (by gravitational force) and blood pressure reduction. The reduction in blood pressure during standing is more pronounced in warmer seasons as a result of the effects of higher ambient temperature, hypovolemia (increased sweating, salt and fluid loss), and p…
