Staying Strong in Space - Achieve 3000

What is a major health concern for astronauts on prolonged space missions?

• Increased bone density

• Improved muscle strength

• Weakening of muscles

• Enhanced cardiovascular health

What did scientist Robert Fitts study to understand the effects of space on astronauts?

• Bone density samples

• Calf muscle samples

• Heart rate data

• Blood pressure readings

How long do astronauts on the International Space Station (ISS) exercise every day?

• 1 hour

• 1.5 hours

• 2 hours

• 2.5 hours

What did the scientists find about the astronauts' muscles after six months in space?

• They became stronger

• They lost more than 40 percent of their power

• They remained the same

• They gained more muscle mass

What is the main way for keeping muscles healthy in space and on Earth according to scientists like Fitts?

• High-protein diet

• Daily exercise

• Medication

• Increased sleep

What special equipment does the ISS have to help astronauts exercise?

• Swimming pool

• Running track

• Weightlifting machine

• Basketball court

Why do astronauts need to eat shortly after exercising according to Fitts?

• To prevent bone loss

• To build muscle mass

• To stay hydrated

• To improve their mood

What did NASA scientist Gregory Adams say about astronauts and muscle loss?

• All astronauts lose muscle at the same rate

• Muscle loss in space is related to diet

• Each astronaut is different in how they lose muscle

• Muscle loss can be prevented with exercise

What is one of the reasons astronauts are losing bone mass in space?

• Lack of sunlight

• Lack of gravity

• Poor diet

• Lack of sleep

What are muscle fibers responsible for in the muscular system?

• Protecting internal organs

• Contracting and relaxing

• Producing red blood cells

• Storing energy