Catecholaminergic effects of prolonged head-down bed rest

• Published in: Journal of applied physiology (1985) Vol. 78; no. 3; p. 1023
• Main Authors: Goldstein, D S, Vernikos, J, Holmes, C, Convertino, V A
• Format: Journal Article
• Language: English
• Published: United States 01.03.1995
• Subjects: Adult; Bed Rest; Catecholamines - metabolism; Catechols - blood; Catechols - urine; Head-Down Tilt; Humans; Time Factors; Weightlessness; NASA Discipline Cardiopulmonary; NASA Center HQS; Non-NASA Center

Prolonged head-down bed rest (HDBR) provides a model for examining responses to chronic weightlessness in humans. Eight healthy volunteers underwent HDBR for 2 wk. Antecubital venous blood was sampled for plasma levels of catechols [norepinephrine (NE), epinephrine, dopamine, dihydroxyphenylalanine,...