Diurnal rhythms of blood pressure, heart rate, and locomotor activity in adult and old male Wistar rats
Autor: | Bei-Li Zhang, Frederic Sannajust |
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Rok vydání: | 2000 |
Předmět: |
Male
Aging medicine.medical_specialty Photoperiod Diastole Hemodynamics Blood Pressure Experimental and Cognitive Psychology Motor Activity Nocturnal Biology Behavioral Neuroscience Rhythm Heart Rate Internal medicine Heart rate medicine Animals Circadian rhythm Rats Wistar photoperiodism Circadian Rhythm Rats Blood pressure Endocrinology circulatory and respiratory physiology |
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 |
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