Accession Number:

AD0743300

Title:

Circadian Rhythms of the Circulatory System. Literature Review: Computerized Case Study of Transmeridian Flight and Medication Effects on a Mildly Hypertensive Subject.

Descriptive Note:

Technical rept. 1 Jan 69-15 Aug 71,

Corporate Author:

MINNESOTA UNIV MINNEAPOLIS CHRONOBIOLOGY LABS

Personal Author(s):

• Levine,Howard
• Halberg,Franz

Report Date:

1972-04-01

Pagination or Media Count:

73.0

Abstract:

Rhythmic changes in blood pressure are assessed by flight surgeons and other medical practitioners by considering separately the systolic as compared to the diastolic measurements. Predictably recurring pressure changes other than those associated with the heartbeat also have long been known and await exploitation in practice. This report 1 reviews the literature in the field of circadian circulatory rhythms 2 specifies causes delaying clinical progress in application of circadian rhythmometry 3 indicates with an illustrative example how modern computer techniques have started to overcome some of the difficulties encountered in quantifying and interpreting and interpreting rhythms and 4 demonstrates effects stemming from intercontinental transmeridian flights upon several circadian rhythms in a mildly hypertensive subject. Author

Descriptors:

• *BIOLOGICAL RHYTHMS
• *BLOOD CIRCULATION
• *BLOOD PRESSURE
• BIOLOGICAL RHYTHMS
• CARDIOVASCULAR SYSTEM
• HYPERTENSION
• AIR TRANSPORTATION
• CHEMOTHERAPY

Subject Categories:

• Anatomy and Physiology

Distribution Statement:

APPROVED FOR PUBLIC RELEASE