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Readaptation of Rat Locomotor Activity and Deep Body Temperature Circadian Rhythms Following Exposure to Chronic Hypergravity  (2001)
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Objectives: This study was conducted to evaluate the adaptation response of rat deep body temperature (DBT) and locomotor activity (LMA) circadian rhythms to acute hypergravity onset and chronic hypergravity exposure. Our study differs from previous reports (1,2) in that we provide a comprehensive mathematical analysis to quantitate the physiological adaptation of the circadian timing system to three chronic hypergravity intensities (1.25, 1.5, and 2 G.) and also provide a statistically quantitative evaluation of rhythmic readaptation and stabilization durations for several circadian rhythm metrics.
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Chronic Hypergravity, circadian rhythms, Hypergravity, Locomotor, Rat, Readaptation
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Paper presented at The Future of Chronic Acceleration Meeting, Davis, CA, January 30, 2001
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Curator: Phil So
NASA Official: Alonso Vera
Last Updated: August 15, 2019