UNIVERSE
SPACE EXPLORATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Increased oxygen levels inside the space station.
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Spacesuits that are lighter and easier to wear.
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Exercise equipment that can be used to help maintain muscle mass
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Food that helps astronauts with more energy.
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Detailed explanation-1: -An astronaut returns from six months on the space station. The astronaut’s muscles are weak, requiring the astronaut to be helped from the spacecraft once back on Earth. Which of the following accommodations on the space station would help prevent this problem? Provide food that provides astronauts with more energy.
Detailed explanation-2: -Without regular use and exercise our muscles weaken and deteriorate. It’s a process called atrophy. Studies have shown that astronauts experience up to a 20 percent loss of muscle mass on spaceflights lasting five to 11 days.
Detailed explanation-3: -Gravity Fields Finally upon returning home, crews will have to readapt to Earth’s gravity. Transitioning from one gravity field to another is trickier than it sounds. It affects spatial orientation, head-eye and hand-eye coordination, balance, and locomotion, with some crew members experiencing space motion sickness.
Detailed explanation-4: -ARED: Advanced Resistive Exercise Device Type of exercise: Maintains muscle strength and bone density by targeting the major muscle groups. Special features: This device uses vacuum cylinders. They exert up to 272 kilos of resistance on a bar or cable. The device imitates free weights used on Earth.
Detailed explanation-5: -Astronauts on the International Space Station work out about two hours a day, using treadmills, exercise bikes, and an IRED–a device specially developed to allow astronauts to do resistive or strength training.
Detailed explanation-6: -Without Earth-like exercise, astronauts would experience bone and muscle loss or atrophy during their stays in space. Bone and muscle atrophy also occurs from normal aging, sedentary lifestyles and illnesses.
Detailed explanation-7: -Spacecraft also must be designed to take microgravity into account. During spacewalks, for example, astronauts require extra handholds and footholds on the exterior of their spacecraft so that they can anchor themselves and not float away. (Astronauts also attach to them in tethers in case they lose their grip.)