de·con·di·tion·ing -'dish-(ə-)niŋ n a decrease in the responsiveness of heart muscle that sometimes occurs after long periods of weightlessness and may be marked by decrease in blood volume and pooling of the blood in the legs upon return to normal conditions

* * *

de·con·di·tion·ing (de″kən-dishґən-ing) a change in cardiovascular function after prolonged periods of weightlessness, probably related to a shift of a quantity of blood from the lower limbs to the thorax, resulting in reflex diuresis and a reduction of blood volume.

Medical dictionary. 2011.

Look at other dictionaries:

  • Deconditioning — is adaptation of an organism to less demanding environment, or, alternatively, the decrease of physiological adaptation to normal conditions. Decondition may result from decreased physical activity, prescribed bed rest, orthopedic casting,… …   Wikipedia

  • Duane Graveline — Duane Edgar Graveline NASA Astronaut Nationality …   Wikipedia

  • Chronic fatigue syndrome treatment — Treatment of chronic fatigue syndrome (CFS) is variable and uncertain, and the condition is primarily managed rather than cured.[1] Only two treatments, cognitive behavioral therapy and graded exercise therapy, have demonstrated reproducible… …   Wikipedia

  • Athlete heart syndrome — is a medical condition that occurs when athletes have enlarged hearts and lower resting pulse rates than that of a non athlete. This condition is, in most cases, not harmful to the athlete and often shows no symptoms or signs. Athlete’s Heart is… …   Wikipedia

  • Chronic fatigue syndrome management — Many patients do not fully recover from chronic fatigue syndrome (CFS) [cite journal |author=Rimes KA, Chalder T |title=Treatments for chronic fatigue syndrome |journal=Occup Med (Lond) |volume=55 |issue=1 |pages=32–9 |year=2005 |month=Jan… …   Wikipedia

  • Human spaceflight — Orbital Human spaceflight Name Debut Launches Vostok 1961 6 Mercury 1962 4 Voskhod 1964 2 Gemini 1965 …   Wikipedia

  • Thelema — The Unicursal Hexagram is one of the common symbols of Thelema Thelema is a religious philosophy (referred to by some as a religion)[1] that was established, defined and developed[2] …   Wikipedia

  • Jerzy Grotowski — Grotowski c.1972 Born 11 August 1933(1933 08 11) Rzeszów, Poland Died 14 January 1999 …   Wikipedia

  • Spaceflight — For the magazine published by the British Interplanetary Society, see Spaceflight (magazine). For the 1985 PBS documentary series narrated by Martin Sheen, see Spaceflight (TV series). For the Sam Lazar album, see Space Flight (album). Part of a… …   Wikipedia

  • Aortic dissection — Classification and external resources Dissection of the aorta descendens (3), which starts from the left subclavian artery, reaching to the abdominal aorta (4). Aorta ascendens (1) and aortic arch (2) are not involved …   Wikipedia