| The two primary health benefits of zero gravity | | | | indicated there was a relaxed, stress-free and |
| features in office chairs center around the back and | | | | unrestrained posture the human body automatically |
| arm support. When you are in an upright standing or | | | | assumes and indefinitely maintains in weightlessness. |
| sitting position, gravity places pressure on your spine | | | | Ergonomic office chairs try to emulate this natural |
| and back causing discs to compress and muscles to | | | | posture, with an open trunk / thigh angle. When in |
| tighten to maintain balance. NASA pioneered the idea | | | | natural posture the body's muscles, ligaments and |
| of using a zero gravity position for astronauts during | | | | tendons are most relaxed, the vertebrae are properly |
| space missions. During take-off, astronauts were | | | | spaced and better aligned to reduce pressure on discs, |
| situated in a reclined position with their feet raised | | | | breathing is improved and blood circulation is less |
| higher than their hearts since this zero gravity position | | | | restricted. |
| reduces the amount of gravitational force exerted by | | | | The second health benefit from an ergonomic office |
| the powerful acceleration required to achieve orbit. | | | | chair is physical stress reduction through proper arm |
| Learning from NASA, office chair manufacturers | | | | support. Stress can build up in the shoulder muscles |
| designed chairs that mimic some of the benefits of the | | | | and wrists due to improper arm rest support. |
| zero gravity position. By maintaining good posture | | | | Ergonomic chairs should offer many different special |
| sitting in an office chair, even if you're on the phone or | | | | application armrests providing exceptional arm support |
| reading a book, your spine will benefit. You can know | | | | for almost any task or upper extremity challenge. |
| the joy and productivity of a body at rest in its natural | | | | The adjustability of an ergonomic office chair back and |
| posture and it's easier than ever by using an | | | | arm rests combined with a unique contoured seat |
| ergonomic office chair. Ergonomic chairs are designed | | | | allow and encourage the benefits of the open trunk / |
| to relieve pressure on your back and body that you | | | | thigh posture by giving proper support in a forward tilt. |
| experience while seated at a work station. While sitting | | | | When properly adjusted, the office chair provides |
| at a desk prevents the ability to work with your feet | | | | exceptional back support in almost any seated posture |
| above the heart, having a chair that can adjust to | | | | allowing the user to choose the posture that best suits |
| support the back in a position that keep the muscles | | | | his / her individual physique, task and medical |
| relaxed is important. Photographs of astronauts | | | | challenges. |