David's Roles Aboard the Prometheus

GreatBoosUp
MemberOvomorphFebruary 09, 20121102 Views10 RepliesApologies in advance if this has been discussed before.
Reviewing the leaked screenshots from the very first Prometheus trailer from Comic-con 2011, I noticed the shot of Shaw in a hypersleep chamber with a hand over it.
[url=http://www.youtube.com/watch?v=Ch69CrQ7Ph8&context=C3ad70fdADOEgsToPDskKuA2vQZw7xc9rAaCPiFqXM]Leaked screenshots from the first trailer on Youtube[/url]
I think this is David's hand. David is a "synthetic human", so he doesn't need to rehabilitate his muscles after spending months travelling in space? Does David even need to sleep during the trip? If this is true then it would discount the interview with Kate Dickie who plays "Imora" who helps the crew get their muscle tone back after waking up from hypersleep.
Thoughts?