Space SimulationNutritional StatusNutrition AssessmentMalnutritionActivities of Daily LivingNutrition DisordersQuestionnairesReproducibility of ResultsQuality of LifeAnthropometryChild Nutrition DisordersProtein-Energy MalnutritionNutritional Physiological PhenomenaChild Nutritional Physiological PhenomenaBody WeightBody HeightInfant Nutrition DisordersThinnessCross-Sectional StudiesSerum AlbuminRisk AssessmentDietBody Mass IndexSkinfold ThicknessEnergy Intake