Accession Number:

AD0744930

Title:

Rhesus Monkey Heart Rate during Exercise,

Descriptive Note:

Corporate Author:

NAVAL AEROSPACE MEDICAL RESEARCH LAB PENSACOLA FL

Personal Author(s):

• DE Lorge, John
• Thach, John S., Jr

Report Date:

1972-04-18

Pagination or Media Count:

19.0

Abstract:

Three rhesus monkeys were implanted with ECG telemeters and performed a calisthenic exercise requiring complete arm extension above their heads and below their knees. The animals were unrestrained and confined to a large box. The exercise was programmed to produce food pellets on various reinforcement schedules. Heart rate samples were obtained both during sleep and high rates of activity. Two animals provided exercise data and one animal provided data without the exercise task. Highest heart rates were seen in the two exercise animals. No differences in maximum heart rates were related to the different reinforcement schedules. In most instances heart rates were twice those of resting heart rates for 5 minutes or longer. Occasionally, heart rates were three times the resting rates for at least 2 minutes. The resting heart rates from all three animals were generally lower than those reported in previous literature as normal rates in the rhesus. During the fixed-interval reinforcement schedule there was a correlated increase in heart rate along with the increase in response rate. Author

Descriptors:

• *SPACE FLIGHT
• *CARDIOVASCULAR SYSTEM
• *MONKEYS
• PHYSIOLOGY
• PHYSICAL FITNESS
• WEIGHTLESSNESS
• PSYCHOLOGY
• OXYGEN CONSUMPTION
• EXERCISE(PHYSIOLOGY)

Subject Categories:

• Anatomy and Physiology

Distribution Statement:

APPROVED FOR PUBLIC RELEASE