Many astronauts travel to space and back to Earth more and more often. While in space they live in a micro gravity environment. They don’t need to use their muscles or bones to function as they are floating in air. Unlike Earth you need to have full function of your bones and muscles to move and walk around. Upon the return from space, they all experience the same thing, which is the loss of muscle and bone strength, which makes them weak and unable to function as they did before they left to space. They are unable to function normally and it takes some time for them to be back to being able to walk and use their bones and muscles normally. Astronauts are many times carried away in stretchers when the return to Earth. It hurts their bodies to move or walk. Gravity tells our bodies how strong they need to be and in zero gravity your body feels as if the bones and muscles are not needed. Scientists have not yet figured out how gravity tells the body to keep bones and muscles to stay strong, but they do know it is a mechanical signal to a chemical signal. The loss of gravity …show more content…
Our bodies were not made to spend time in a zero gravity atmosphere. We shouldn’t be putting out bodies through that type of change if you want to continue living a long and healthy life. It not only changes or affects our bones and muscles. Space travel also changes our blood flow, which can cause problems to our body organs. Traveling to space leaves the astronauts feeling tired, sick weak, some develop disease, and some even experience depression. I think that we should not continue space travel at this time until they are able to invent and create a space shuttle that can produce a gravity atmosphere. It would keep the astronaut’s feeling as normal as possible, so when they return from space there wouldn’t be any health problems whether it is temporary or
Muscular and bone degeneration is something that also occurs in people who spend long periods of time in a low or null gravity environment, such as astronauts, and for muc...
A reduction in your range of movement in the joint. This means you won’t be able to move your joint into the positions you did before, or move them as far.
Then, rigor mortis occurs. Rigor mortis is the stiffening of the muscles due to the disappareance of ATP (adenosin triphosphate). The proteins responsible for muscle contraction, actin and myosin, need ATP to create crossbridges and make the muscles contract, and then relax. When ATP is no longer produced by the cells, the cycle of contraction cannot be completed and the muscles remain contracted. [3]
When bones start to lose their mass which mostly occurs in elders and woman who have gone through menopause, the human body begins to develop osteoporosis (MC 2015). Osteoporosis is when the bones deteriorate and become very brittle that a simple fall can fracture the bones. Symptoms of osteoporosis include: back pain, loss of height, unusual posture, and bones starting to break easily. If the body does develop osteoporosis, it can be life changing and have a negative impact on everyday life. If the hip is fractured by a fall it can produce a disability which can make it hard to find a job, or it can even cause death. In the most extreme cases, the bones don’t even have to break to transformation ones’ life negatively. If the bones become brittle enough that they can compress
In addition to financial cost, osteoporosis is a burdensome disease because it often results in injury, which leads to immobility, depression, and infection risk. Considering the targeted population for osteoporosis, immobility is very debilitating because it affects activities of daily living. When individuals are positions where they are unable to care for themselves, they are at risk for depression. Often times, elderly individuals lack family support when they need assistance at home. With a lack of help available, individuals are placed in nursing homes or left alone to struggle independently. When individuals are victims to fractures, hospital visits are sometimes required in the event surgery is performed. Considering the age of most patients, they are susceptible to infections if not properly cared for after surgery.
On May 25, 1961, just two weeks after the US had successfully got an American into space, John F. Kennedy gave a speech addressing it and exclaimed, "I believe that this nation should commit itself to achieving the goal, before this decade is out, of landing a man on the Moon and returning him safely to the Earth. No single space project...will be more exciting, or more impressive to mankind, or more important...and none will be so difficult or expensive to accomplish..." (Kruse). The Space Race became an important event for all of humanity during the 20th century because it improved our knowledge of space, improved and inspired new technology, and improved our education. It sparked a mix of both friendly and non friendly competition between the Capitalist United States and the Communist Russia (USSR) from the launch of Sputnik in 1957, all the way to the Apollo-Soyuz project that ended the race in 1975 .
The cardiac muscle of the other adult is extended and the contraction the heart muscles are decreased. Although, this occurs it usually does not affect them unless they are suffering from some type of physical or mental illness. In the musculoskeletal system of the elderly person the bone density is reduced to the loss of calcium. Thus, leading to poor posture, joint pain, and brittle bones which can lead to an increased risk falls or accidental injuries.
October 4, 1957: The Russia launched Sputnik into space. Thus began the seemingly-eternal battle for control of space exploration. Who would get the first man into space; to the Moon, to Mars? Everything that could be done by either country was being done to give the edge. It soon became obvious to all that neither country was going to back down from the challenge. However, a lot has changed since 1957, governments have slumped, privatized exploration has taken charge. . . what happened? Where is space exploration going? Where is the human race, today?
The Space Race began in or around the late-1950s, during the Cold War. The United States and Russia were both anxious to become the country to explore space. Unfortunately for the US, Russia launched the first artificial satellite and man-made object to orbit Earth, Sputnik. The launch of Sputnik surprised the United States, and we rushed to get our own space craft into space, and to beat Russia to anything else space related.
5. The similarities between detraining and spaceflight are to say the least comparable. The reasons for the effects of spaceflight are even more complex than that of detraining. During flight astronauts go through changes in the muscular strength and mass, similar to that of injured athletes, yet at an even fast rate. The muscles that keep the body upright on earth decline in strength and mass inevitably to allow the body to respond appropriately to microgravity. The rate at which strength and mass are loss again depends on the physical condition of the astronauts and the length of continued exposure to microgravity. The body makes these adjustments in order to meet the demands of microgravity.
Contrary to popular belief, there’s no such thing as zero gravity. Weightlessness and zero gravity are two different things. The earth’s gravity keeps the moon in orbit. And astronauts are generally much closer to earth than the moon is, which means that the earth’s pull on them has to be much stronger. While we’re on Earth, we feel our weight because, as the Earth’s gravity pulls us into its center, the ground pushes back against our feet.When astronauts orbit the earth, they’re still subject to gravity, but they’re moving sideways so quickly that even though they’re being pulled toward the earth, they’re not getting any closer to the planet’s center. In other words, they’re basically in a state of constant free fall, and that’s why they’re weightless. Even so, astronauts are still affected by this sense of ‘weightlessness’, in a study conducted by NASA’s Zero Gravity Test, over time their participants slowly loss bone and muscle mass the longer they stayed
After World War II, the capitalist U.S. and the communist U.S.S.R. developed a long period of tension and rivalry, commonly referred to as “The Cold War.” In our history class we learned that this rivalry led to a competition in space between the two superpowers to prove which one had the best economic system, military, science, and technology. This competition became known as “The Space Race.”
Since the beginning of time, mankind has sought after learning about and exploring the universe. This yearning drove us to achieve such great things as the journey to the moon and the discovery of water on mars. Nowadays, several people argue as to whether or not space exploration is worth the effort. I believe that it is humanity’s instinctual nature to pursue a better understanding of ourselves, and our universe. Further understanding of our universe will lead to the discovery of new technologies and ways to secure humanity’s survivability. As such, this essay will argue that space exploration is a necessity to our kind and that NASA should be progressively more financed.
One of lesser-known benefits of exploring outer space is the medical breakthroughs scientists discover. It is true that space in a gold mine for much of the modern day health discoveries, yet many people don’t seem to have knowledge of this. A few major medical devices are, a laser angioplasty, an ultrasound skin damage assessment, a human tissue stimulator, and a cool suit. These are only some of the prominent discoveries made a group of intellectuals aboard the Internation Space Station (ISS). This band of people uses the unique aspects of outer space such as zero gravity to perform and uncover new information about medicine (Ferrell).
... include a great deal of hard work. The astronauts have to train for a very long time because of all of the different roles taken on by them. They need to be strong both physically and mentally. There are many differences in living styles on the ISS compared to Earth. In addition to the way they eat, drink, and sleep, astronauts must adapt to separation from their family or friends for great lengths of time. Astronauts have to have a great desire to succeed in their job. Once they start going up, there is no turning back. They must also have great determination to succeed in their job. It takes much determination to get up every day for ascan training. Lastly, astronauts must have great dedication to succeed in their job. The job of being an astronaut is very important, and all astronauts have to want to do what they do. They have to work to be the best they can be.