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  • Title: [Diurnal dynamics of the indices of the functional state of monkeys during hypokinesia and readaptation].
    Author: Kolpakova NF, Urmancheeva TG.
    Journal: Kosm Biol Aviakosm Med; 1984; 18(3):38-43. PubMed ID: 6737981.
    Abstract:
    Seven male rhesus monkeys, aged 3.5-4 years, were examined during clinostatic hypokinesia for 20-40 days and after exposure for 16 days. Parameters of the cardiovascular function, external respiration and body temperature were measured. During and after hypokinesia the amplitude of diurnal variations of heart rate tended to decrease. The position of heart rate acrophases shifted most during the first 3 weeks of hypokinesia and during recovery. Changes in the amplitude of diurnal variations of arterial pressure were different. The position of acrophases on the time axis was unstable and tended to recover by hypokinesia days 30-40 and then shifted again on the 1st recovery day. The amplitude of diurnal variations of the respiration rate increased, the position of acrophases on the time axis shifted and their width changed. By the 14th day of readaptation the diurnal dynamics of this parameter tended to recover. During hypokinesia the amplitude of diurnal variations of body temperature increased or decreased and the position of acrophases on the time axis remained stable.
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