Diurnal rhythms of blood pressure, heart rate, and locomotor activity in adult and old male Wistar rats

Autor: Bei-Li Zhang, Frederic Sannajust
Rok vydání: 2000
Předmět:
Zdroj: Physiology & Behavior. 70:375-380
ISSN: 0031-9384
Popis: The diurnal rhythms of systolic blood pressure (SBP), diastolic BP (DBP), heart rate (HR), and spontaneous locomotor activity (SLA) were determined in adult (6-month-old) and old (24-month-old) male Wistar rats by using radiotelemetry. The rhythm parameters (mesor, amplitude, acrophase, and percent rhythm) were analyzed by Fast-Fourier Transform and Cosinor methods. We found that the 12-h mean values of SBP, DBP, HR, and SLA were significantly (p
Databáze: OpenAIRE