This experiment was performed by the Hydronauts2Fly team within ESA's educational programme: "Fly Your Thesis! - An Astronaut Experience". The Fly Your Thesis! programme gives university students the possibility to fly their scientific experiment in microgravity, as part of their Masters thesis, PhD thesis or research programme, by participating in a series of parabolic flights. In total, three teams of postgraduate students were flying their experiments during the 2012 'Fly Your Thesis!' campaign.
Prime goal of the Hydronauts2Fly Team and their experiment is the investigation and definition of the human neutral body posture. The aerospace students from the Technische Universität München want to find out which position the human body adopts while relaxing under zero gravity environment, what is called the Neutral Body Posture - NBP. Due to neutralization of the gravity force in space and onboard parabolic flights, the human body does not have to make any efforts working against it. As a result its muscles and body limbs will rest in a different posture in space than on earth, similar to the posture of embryos.
With this experiment the Hydronauts2Fly team is studying the neutral body posture of different persons in order to find out whether or not there is a mutual position for test subjects with different body masses and sizes. And if so, is it predictable?