title: [Biomedical problems of artificial gravity: overview and challenge].
abstract: The limitations of the currently used exercise-based countermeasures and the scientific rationale for the gravity-based countermeasures are addressed. Then, an overview of the physiological effects and requirements for the two types of artificial gravity (AG), i.e., the continuous AG provided by full-time spinning of the entire space system/habitat and the intermittent AG by incorporating a short-arm centrifuge into the spacecraft, is presented. Finally, significance and challenge faced in future research on biochemical problems of artificial gravity are discussed.
authors.affiliation: Aerospace Physiology, The Fourth Military Medical University, Xi'an, China.
authors.forename: L F
authors.initials: LF
authors.lastname: Zhang
mesh_terms: D000222:Adaptation, Physiological; D000337:Aerospace Medicine; D002498:Centrifugation; D005081:Exercise Therapy; D018470:Gravity, Altered; D006801:Humans; D012399:Rotation; D013026:Space Flight / Q000295:instrumentation; D014893:Weightlessness / Q000009:adverse effects*; D018544:Weightlessness Countermeasures