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scott kelly may be back on earth but

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when it comes to research his work is

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not done i recently spoke with a

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principal investigator of the field test

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study now that's some of the first tasks

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that scott had to accomplish after he

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landed now this particular study looks

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at the vestibular system and whether

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return to gravity affects things like

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walking a straight line or standing from

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a seated position the task may seem

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simple but it's research that has stood

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the test of time

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one constant has been that

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the balance system

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primarily regulated by the vestibular

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system in the inner ear and its control

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of the postural muscles in your legs

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has always been affected by space flight

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and

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parsing out exactly what the cause of

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that is is still an ongoing

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investigation

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is that part of your field test and

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that's definitely part of the field test

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the field test

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by the way we just finished what was

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called the pilot field test and it moved

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into the era where we're doing the full

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field test which includes a lot more

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objectives than the the pilot probably

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was just to see if we could actually do

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this in the field

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somebody sent somebody out there on a

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helicopter

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with

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70 to 80 pounds on their back of the

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hardware and set up quickly and make the

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measurements that were necessary

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and

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so now we're doing more objectives

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and almost

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all of them

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are related or can be related to

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postural ataxia

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what kind of things do we do in this

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test

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well we're doing several things one is

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an activity that you you tried okay

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we do simple things initially

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uh like standing up from a chair and

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people wonder why would you do that

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that's a relatively simple thing well

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returning crew members particularly ones

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that have been up there six months or

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more

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get up from a chair differently than

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normal people do they they look

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look more like people that need

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assistance with everyday living

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and we ask them to

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lay on the floor on their stomachs

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called the prone position and to get up

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from that position as quickly as they

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can stand

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for three and a half minutes

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where we can get cardiovascular measures

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as well as look at their sway from a

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postural standpoint

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and then we do

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a test called

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the tandem walk which most people are

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familiar with in terms of

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of drunk driving when they see people on

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the side of the road trying to walk

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placing one foot in front of the other

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is it exciting to you

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to see what's going to happen

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to the vestibular system and all after

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one year in space versus six months oh

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yeah that's that's our prime objective

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is

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the one thing we look at

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that's particularly important for the

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programmatic aspects of this and help us

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define the risks that may be involved in

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long long duration space flight is

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recovery time

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and how long does it take you before

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you're performing

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at the level that you were before you

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flew

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so do you think scott kelly will do

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better than i did in your lab with this

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i have no doubt about it

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so what do you think scott

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he's speechless i don't know we're

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having a little fun around work today

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welcoming scott home we have a lot of

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tour groups who come through here so

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everyone's coming in and taking selfies

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and then we're going to post them on our