Analysis of time course changes in the cardiovascular response to head-up tilt in fighter pilots

Fighter pilots are exposed to significant levels of +Gz acceleration on a frequent occupational basis (Newman & Callister, 1999). There is an emerging body of experimental research that suggest that they physiologically adapt to this frequent +Gz exposure (Convertino, 1998; Newman & Callister, 2008, 2009; Newman et al, 1998, 2000). Our previous work has shown that fighter pilots are able to maintain their cariovascular function to a much greater extent than non-pilots when exposed to an orthostatic stimulus such as head-up tilt(Newman & Callister, 2008, 2009; Newman et al, 1998, 2000).