Question

How often do astronauts need to exercise in the ISS? Why cant astronauts use normal exercise equipment in space? Which of the exercise machines in the ISS do you think is the most useful?Why? Do you think astronauts in the ISS enjoy exercising every day?Why?/Why not?

Answer 1

Ответ:

1.They need  to  exercise for a few hours a day with only one day off a week

2.They live in micrografity so they need to work out  harder than they would on Earth

3.I think the cevis is the most useful because you are standing up

4.I think the astronauts probably enjoy exercisingg every day because it would be something they would do in their spare time on Earth

Объяснение:

Answer 2

Astronauts on the International Space Station (ISS) exercise almost every day to counteract the detrimental effects of prolonged weightlessness on their muscles and bones. The primary reasons for this frequent exercise routine include:

1. Muscle Atrophy: In microgravity, muscles that are not used regularly can weaken and atrophy, which can make it difficult for astronauts to perform tasks upon returning to Earth.

2. Bone Density Loss: The absence of gravity causes bone density to decrease over time, leading to conditions like spaceflight osteopenia. Regular exercise helps maintain bone density.

3. Cardiovascular Health: Space exercise helps astronauts maintain their cardiovascular fitness, as the lack of gravity can lead to cardiovascular deconditioning.

Astronauts can't use normal exercise equipment found on Earth for a few reasons:

1. Microgravity Environment: Traditional exercise equipment relies on gravity to function (e.g., weights, treadmills). In microgravity, these machines would not work as intended. Without gravity, there is no "down" direction for weights to provide resistance, and running on a treadmill would cause astronauts to float away.

2. Safety and Space Constraints: Traditional equipment could be bulky and potentially dangerous in the confined space of the ISS. A mishap with heavyweights or moving parts could damage the station or harm astronauts.

The exercise equipment on the ISS includes specialized machines designed to work in microgravity:

1. Treadmill with Harness (Treadmill with Vibration Isolation and Stabilization): This allows astronauts to run or walk in place while secured with a harness. It's an important piece of equipment for cardiovascular health and maintaining muscle mass.

2. Cycle Ergometer with Vibration Isolation and Stabilization (CEVIS): This stationary bike-like device provides a cardiovascular workout and helps maintain leg muscle strength.

3. Advanced Resistive Exercise Device (ARED): ARED uses vacuum cylinders to create adjustable resistance for exercises such as squats, deadlifts, and bench presses. It's particularly important for building and maintaining muscle and bone density.

4. Combined Operational Load-Bearing External Resistance Treadmill (COLBERT): This treadmill allows astronauts to run with a harness and bungee cords for added resistance.

As for whether astronauts enjoy exercising in space every day, it can vary from person to person. Some astronauts may appreciate the routine and the opportunity to maintain their physical health. Regular exercise is vital for their overall well-being during their time in space and for their transition back to Earth's gravity. However, like any exercise routine, it can be physically demanding, and not all astronauts may enjoy it equally. Nevertheless, they understand the importance of this regimen for their health and mission success.