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Body Size and Its Implications Upon Resource Utilization During Human Space Exploration Missions by Jonathan P. R. Scott; David A. Green; Guillaume Weerts; Samuel N. Cheuvront is a Biochemistry, Genetics and Molecular Biology article available to read on EtoBox.

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## Abstract The purpose of this theoretical study was to estimate the effects of body size and countermeasure (CM) exercise in an all-male crew composed of individuals drawn from a height range representative of current space agency requirements upon total energy expenditure (TEE), oxygen (O~2~) consumption, carbon dioxide (CO~2~) and metabolic heat (H~prod~) production, and water requirements for hydration, during space exploration missions. Using a height range of 1.50- to 1.90-m, and assuming geometric similarity across this range, estimates were derived for a four-person male crew (age: 40-years; BMI: 26.5-kg/m^2^; resting VO~2~ and VO~2max~: 3.3- and 43.4-mL/kg/min) on 30- to 1,080-d missions, without and with, ISS-like CM exercise (modelled as 2 × 30-min aerobic exercise at 75% VO~2max~, 6-d/week). Where spaceflight-specific data/equations were not available, terrestrial data/equations were used. Body size alone increased 24-h TEE (+ 44%), O~2~ consumption (+ 60%), CO~2~ (+ 60%) and H~prod~ (+ 60%) production, and water requirements (+ 19%). With CM exercise, the increases were + 29 to 32%, + 31%, + 35%, + 42% and + 23 to 33% respectively, across the height range. Compared wi

Who reads Body Size and Its Implications Upon Resource Utilization During Human Space Exploration Missions?

Author

Jonathan P. R. Scott; David A. Green; Guillaume Weerts; Samuel N. Cheuvront

Publisher

Springer Science and Business Media LLC

Published

2020

Language

EN

Field

Biochemistry, Genetics and Molecular Biology (Life Sciences)