Enhancing Analog Space Missions With Neutral Position Body Angles: A Novel Approach to Simulating Microgravity Conditions on Earth

Sanchez-Delgado W.L.; Herrada-Torres J.S.; Salazar-Reyes M.; Escalante-Porlles A.Q.; Montenegro-Arrasco D.A.; Huayanay-Flavio R.Y.; Alvarez-Quichca J.A.; Duran-Aquino R.C. · Ground-Based Preparatory Activities - Held at the Global Space Exploration Conference, GLEX 2025 (2025) · DOI: 10.52202/080564-0011

Resumen

Analog space missions are essential for preparing astronauts for the unique physical and psychological demands of space exploration. While current analog environments effectively simulate certain aspects of extraterrestrial habitats, reproducing the experience of microgravity on Earth remains a significant challenge. This paper explores the application of a”neutral position” body angle, a reclining posture at approximately 6 degrees, which redistributes bodily fluids and reduces joint stress in a manner that partially mimics microgravity effects. We propose integrating this posture into analog missions to enhance realism, hypothesizing that it offers valuable sensory and physiological conditioning for space-bound individuals. By analyzing fluid redistribution, muscle response, and psychological adaptation in subjects assuming the neutral position, this study examines its potential benefits and limitations. Our findings suggest that the neutral position could serve as a valuable, low-cost addition to analog mission protocols, advancing the fidelity of Earth-based astronaut training programs. © GLEX 2025.All rights reserved.

Instituciones: Universidad Nacional Mayor de San Marcos; Pontificia Universidad Católica del Perú; Universidad Ricardo Palma; Universidad de Huánuco