Jadu, du kan ju komma med dina rolleyes.. Men jag är uppväxt på en flygflottilj. Med en far som var läkare...
Kolla här nedan till exempel. Sammanfattningen av en studie som visar att det förhåller sig lite mer komplicerat än att ”tjejer tål g-krafter bättre än killar”.
Gender differences in cardiovascular tolerance to short radius centrifugation.
Fong KJ, Arya M, Paloski WH.
University College London, Gower Street, London, WC1E 6BT, UK.
kevinjfong@gmail.com
”In preparing for the NASA Artificial Gravity Pilot Study the planned centrifuge loading protocol was tested in 11 ambulatory subjects (6 men, 5 women). Each was subjected to a single 60 min trial with 2.5G of equivalent gravitational load feet and 1G at the level of the mediastinum.
Amongst the men, 5/6 completed the trial successfully with no adverse sequelae. However, amongst the women, 4/5 tests were stopped early because of presyncope. Women are known to have a greater predisposition to syncope following orthostatic stress under normal tilt table conditions, during lower body negative pressure and following space flight. Amongst the factors which may have contributed to their lower tolerance to centrifugation are anthropometric factors, the vasoactive effects of sex hormones, catecholamine levels, ability to augment total peripheral resistance in response to orthostatic stress, and structural differences in cardiac anatomy and physiology. However, determining the true cause of this difference will require further investigation.”
http://www.ncbi.nlm.nih.gov
En annan studie:
Invited review: gender issues related to spaceflight: a NASA perspective.
Harm DL, Jennings RT, Meck JV, Powell MR, Putcha L, Sams CP, Schneider SM, Shackelford LC, Smith SM, Whitson PA.
Collaborators (4)
Harm DL, Powell MR, Putcha L, Sams CP.
Human Adaptation and Countermeasures Office, NASA Johnson Space Center, Houston, TX 77058, USA.
dharm@ems.jsc.nas.gov
”This minireview provides an overview of known and potential gender differences in physiological responses to spaceflight. The paper covers cardiovascular and exercise physiology, barophysiology and decompression sickness, renal stone risk, immunology, neurovestibular and sensorimotor function, nutrition, pharmacotherapeutics, and reproduction. Potential health and functional impacts associated with the various physiological changes during spaceflight are discussed, and areas needing additional research are highlighted. Historically, studies of physiological responses to microgravity have not been aimed at examining gender-specific differences in the astronaut population. Insufficient data exist in most of the discipline areas at this time to draw valid conclusions about gender-specific differences in astronauts, in part due to the small ratio of women to men.
The only astronaut health issue for which a large enough data set exists to allow valid conclusions to be drawn about gender differences is orthostatic intolerance following shuttle missions, in which women have a significantly higher incidence of presyncope during stand tests than do men. The most common observation across disciplines is that individual differences in physiological responses within genders are usually as large as, or larger than, differences between genders. Individual characteristics usually outweigh gender differences per se.”
