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>> Today, we're going to
talk about exercise in space.

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We have three different exercise
devices here, and I'm going

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to talk about one of them.

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Of course, in zero gravity,
we can't lift weights,

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so we have what's called a
resistive exercise device,

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but it's got a really
important feature.

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In order to protect
the experiments

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that are going onboard that
might be sensitive to vibrations

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from us lifting this resistance,

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it's got a vibration isolation
system that's actually

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very cool.

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As you move on that machine,
it isolates any vibrations

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that we would have
away from the stretcher

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and protects the
sciences going on.

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And so we had to work out about
two hours every day in order

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to maintain our bone
and muscle mass.

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And this is my favorite,
the ARED,

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the resistive exercise device.

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Squat.

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Sumo squat.

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[ Machine Sounds ]

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Heel raises.

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[ Machine Sounds ]

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Dead lift.

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[ Machine Sounds ]

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RDL.

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[ Machine Sounds ]

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Bench.

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[ Machine Sounds ]

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Military press.

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[ Machine Sounds ]

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Tricep extensions.

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[ Machine Sounds ]

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Sit ups.

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[ Machine Sounds ]

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Curls.

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[ Machine Sounds ]

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Forearm extensions.

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[ Machine Sounds ]

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But you know what the best part

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about doing exercise
in space is?