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we're here at glenn research center in

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the exercise countermeasures lab gail

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perusic joins me now she is the project

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manager for advanced exercise concepts

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for the human research program and gail

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we have a lot of concepts around us a

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lot of real things that are used on the

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space station right now tell us about

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what you do in this lab sure

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the exercise countermeasures lab is a

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place where we can

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test develop new equipment for for

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astronauts in the area of exercise

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countermeasures

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in a realistic environment here on earth

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so

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we're developing new equipment new

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sensor technology new protocols to

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improve the exercise countermeasures

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hardware and routines that the

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astronauts use to stay healthy in zero

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gravity and mitigate the the bone and

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muscle loss that that we see when they

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they don't get adequate exercise and we

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really don't think about it but exercise

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is a lot different in space well maybe

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not a lot different but there are things

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you have to do differently because

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nothing to weight you down right that's

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true yeah that's true so um the

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equipment that we've got on on space

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station now we've got a

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an advanced resistive exercise device

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which is a lot like lifting free weights

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but in zero gravity

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it uses a principle of vacuum cylinders

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and flywheels to provide that resistive

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load

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we've got a cycle ergometer with

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vibration isolation

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system and that's a lot like a

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stationary bike for an aerobic workout

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and then there's the second generation

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treadmill or t2

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which is

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basically a commercial treadmill that's

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been fitted to a space station rack

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again with a vibration isolation system

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and as opposed to a treadmill at the gym

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where you just jump on and go

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the crew members don a harness and they

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tether themselves down to the treadmill

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with a set of bungees or a subject load

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system and that allows them to generate

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the the forces under their feet to get

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that impact loading that's so important

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for for bone health and

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allows them to get it get a good workout

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so is that something like we see here or

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is this something new

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exactly so

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so this

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treadmill

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now this is a this one has an acronym

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and it's a mouthful but

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yeah

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we call this the ezls or enhanced zero

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gravity locomotion simulator

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we can simulate the the iss treadmill

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and uh some of the unique things about

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this uh system is that um

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we we can actually float this on a film

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of air on air bearings so it reacts to

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the uh the footfalls of our our human

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test subjects are our human volunteers

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that we appreciate so much

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and so we can really get a good

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simulation of what the the loading

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regime what the what what the

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exercise prescriptions are really really

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doing from uh you know from an

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engineering perspective in terms of

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loading into the vehicle loading into

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the body

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so it's a it's a great simulation a

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great analog for developing new

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equipment

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so one of the uh one of the the success

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stories to come out of this lab is is a

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new more ergonomic more comfortable

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treadmill harness

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that was developed with

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our collaborators at the cleveland

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clinic

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and

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the crew members were coming back from

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the expeditions with complaints of the

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previous harness design of causing

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discomfort and so we we worked with the

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clinic and our engineering teams

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here at glenn and at johnson space

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center to develop a new and better

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design so that that design was tested

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here in the simulator and

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it was it was flown in about 2009 2010

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it was met with uh

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great feedback from the crew and

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we transitioned to operations and now

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the crew members each get a get a what's

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called a glenn harness

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and that that was developed right here

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so also with the success stories we want

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to talk about how these exercise

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countermeasures everything they do is

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really helping them now at first you

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didn't know a lot about what was causing

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bone loss and muscle loss

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and now they exercise two hours two plus

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hours a day two plus hours a day six

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days a week

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we're we are definitely learning more

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about the optimal regimen the optimal

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equipment what the exercise hardware

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needs to do in terms of providing

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optimal force

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characteristics if you will

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the a-red the new advanced resistive

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exercise device which was flown on

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station in 2008

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provides a 600 pound resistive force

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and the previous irad or interim

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resistive exercise device was limited to

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300 pounds

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and since the a-red has flown we've seen

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crew members come back healthier than

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ever so we are taking

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that capability

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and we're benchmarking it for our next

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generation designs for

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missions to mars

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mars transit these

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long duration missions

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all of that is

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being taken

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and and the ultimate well the goal for

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towards the end of the decade for space

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station

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is to bring that all together in an

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integrated

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optimized countermeasure suite

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which will be our our best

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designs our best efforts for

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for the mars mission

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we're all counting on you