Elisa Le Roux, Alexandre Zahariev, Isabelle Chery, Dale A Schoeller, Pierre Bourdier, Alain Maillet, Cecile Thevenot, Maël Garnotel, Guillemette Gauquelin-Koch, Laurie Van Den Berghe, Stéphane Blanc, Chantal Simon, Audrey Bergouignan
Bedrest shifts fasting and postprandial fuel selection towards carbohydrate use over lipids, potentially affecting astronauts' performance and health. We investigated whether this change occurs in astronauts after at least 3 months onboard the International Space Station (ISS). We further explored the associations with diet, physical activity (PA), and body composition. Before and during spaceflight, respiratory quotient (RQ), carbohydrate, and fat oxidation were measured by indirect calorimetry before and following a standardized meal in 11 males (age = 45...
March 27, 2024: NPJ Microgravity