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You have to be in shape to be an astronaut! In space, astronauts’ bodies can lose strength and make them feel weak when they get back to Earth.
 
Watch this video to learn how astronauts work out, and how you can exercise like an astronaut using equipment in your school, gym, or home.
  • Astronauts ride a CVIS (Cycle-Ergometer Vibration Isolation System), an unusual stationary bicycle, to help improve their cardio (heart) health. On Earth, we can go for a bike ride or use a regular stationary bike.
  • Astronauts use an ARED (Advanced Resistive Exercise Device) to build strong muscles. Back on Earth, we can lift weights or use weightlifting machines.
  • Astronauts use a TVIS (Treadmill Vibration Isolation System) to increase their endurance, so they can work for longer periods of time without feeling weak. On Earth, we can go running or use a treadmill.
astronaut
Noun

person who takes part in space flights.

endurance
Noun

ability to accept and deal with hardship.

gravity
Noun

physical force by which objects attract, or pull toward, each other.

International Space Station (ISS)
Noun

satellite in low-Earth orbit that houses several astronauts for months at a time.

satellite
Noun

object that orbits around something else. Satellites can be natural, like moons, or made by people.

space walk
Noun

physical activity outside a spacecraft in orbit.

technology
Noun

the science of using tools and complex machines to make human life easier or more profitable.