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so in the almost 15 years of uh manned

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habitation on board the station we've

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been learning quite a bit of how the

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body functions after being in

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microgravity for six months at a time

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simple tasks like walking or even

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turning a latch or a lever

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or standing from a seated position may

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sound easy but for crew members right

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after they return from space it can be a

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little more difficult

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we're learning how those tasks are going

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to be affected

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even more after spending a year in space

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with the one-year mission so lori mags

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out at nasa's marshall space flight

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center visited the neuroscience lab at

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johnson space center here where crew

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members undergo pre and post flight

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analysis as part of the functional task

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test

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i'm here with jacob bloomberg we're in

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the neuroscience lab at johnson space

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center jacob what goes on here well what

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you see here is a subject doing one of

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the component tests of the functional

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task test and this test is really

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focused on the ability of astronauts to

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egress a vehicle

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after a long duration space flight so

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you can see our subject unbuckling the

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belt standing up and negotiating an

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obstacle course here

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simulation through a portal

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and then you'll see our subject walk

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through the pylons

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turning while she walks through there

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which challenges the balance control

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system and then you'll see her walk up

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this ramp

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which again simulates an active

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performance activity

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and that completes the path it looks

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like a simple task but thank you aaron

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great job

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but

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what are we learning from this well what

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we're learning from this is that we know

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that astronauts experience postural and

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gait instabilities after space flight

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and what we're trying to do is

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understand the underlying physiological

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changes that contribute to some of those

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changes and what this test gives us is

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an estimate or measure of their

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functional performance and our goal is

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then to relate those changes with

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underlying tests of balance control and

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you've finished this with 13 subjects

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what have you learned well what have we

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learned we've learned that

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when we look at all our tests as a

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composite those tests that have a

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balanced challenge like what you see are

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the tests that that have the greatest

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change in performance and so for example

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test that where you have to move through

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space we have to move objects we have to

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actually move are those where we see the

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greatest deficit and so what this tells

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us is that we need to expand our

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countermeasures to include balance

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training as part of our complement of

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countermeasures that we're going to use

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on iss to improve post-flight

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performance all right let's go look at

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that activity board next thing tell us

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what she's doing now well what she's

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doing is she's doing a complex manual

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control task and and this is one of the

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concerns we have with crew members

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whether after long duration space flight

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they can do complex manual control

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attacks like what you're saying so she's

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doing various tasks where she's moving

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uh

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the these connectors from one receptacle

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to another and then you can see her with

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the power drill taking those bolts off

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and then moving that handle 90 degrees

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so we test our performance before and

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after flight doing this particular task

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and as we mentioned we've had 13

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subjects complete this

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one of those happens to be now going on

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a year-long mission so you're going to

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get a lot more data from this i know

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that's exciting for you absolutely we're

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very excited about the opportunity to do

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the one year mission and so we as you

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know we'll be testing scott kelly before

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and after space flight

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and we've had the opportunity to pass

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the testing on this particular test

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after six months so we'll be able to

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compare the six-month data with one-year

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data to see if there's any differences

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between them all right i know there are

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a lot more tasks and i think i see one

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that i might be able to do okay here i

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don't know

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looks pretty easy right now okay so this

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is a meant to be equivalent to a hatch

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opening task so your task will be to

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move that wheel as many times as you can

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in 20 seconds

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move it as many times as i can oh okay

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as if you're opening a hatch i think

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they put something on this yeah it's got

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a bit of resistance in there

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and we and this is something that is

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really going to be important on the long

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duration mission absolutely got to be

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able to open a hatch absolutely it's an

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important task for us to be able to look

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at well thank you so much for showing us