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Zero Gravity Recliners have health benefits and Roots in Space

Introduced more than a decade ago, zero gravity recliners offer a unique experience of relaxation. Like many of the features and devices we enjoy today, the idea of a zero gravity recliner is said to have originated as part the space program. As part of NASA's biomechanical system, the zero-gravity recliner has its roots in the astronaut safety and comfort.

During the takeoff phase of any manned space flight, astronauts are exposed to huge gravitational forces. In order to help astronauts withstand the intense level G force, NASA has developed various security settings and fillers. Latex foam visco elastic memory was part of this process of development, although memory foam was never used as part of a spaceship. Despite being a failure as a component of human spaceflight, memory foam is now used throughout type of applications, including upholstered furniture and mattresses.

One of the many challenges faced by astronauts is physical compression of the discs separate the vertebrae of the spine. Even for us earthlings, normal gravity pressure of just over fourteen pounds per square inch can cause disk compression. While free from the shackles of gravity and lands at speeds of thousands of kilometers per hour, the astronauts can find more were exposed to ten times the normal gravitational pressure found on Earth. The force of Earth's gravity is so strong that a spacecraft would have to be moving in over twenty-five thousand miles per hour, referred to as the escape velocity.

The designers of zero gravity recliners tout several important benefits to these unique furniture. The most frequently mentioned benefit is the effect on the spine. Sitting in a fully reclined position with your feet higher than the head can relieve pressure on the spine. Do not think about being lean and flat in the recliner. The basic concept behind the gravity recliner zero is to put the body in a position such that the compressive forces on the spine is reduced to zero as closely as possible. Achieving this state requires knees and hips held in ninety-degree angles. So a zero-gravity chair can be accurately described as a Z chair, a reflection of how you take when properly seated in it.

With feet elevated above the heart, blood circulation to the legs changes. In a standing position, The heart must work harder to push blood toward the heart of the legs. The heart needs to overcome the forces of gravity, of course, makes the blood legs to the pool. This is the same condition as experienced by astronauts and pilots during periods of exposure to centrifugal force. Thus, with the legs high, the heart has to work so hard.

A lot of profits are attributable to the use of zero-gravity recliners. Along with the relief pressure on the spine proponents tout the ability of the chair to relieve muscle tension, increased lung capacity, reduce pressure on the heart and even increase oxygen levels in the blood. One can argue whether all of these claims can be substantiated. The real question is whether a zero gravity recliner feels good to the user. A similar debate has focused on what type of mattress is better for people with back problems, a firm or soft mattress. There are strong opinions on both sides of this debate.

A consensus has risen from this debate and is applicable to zero gravity recliner. The consensus seems to be that it is for the user to decide. A person it feels better with a zero gravity recliner should use one.

About the Author

Mitch Endick is a staff writer for the quality online store BigManRecliners.com.
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