Office health chairs forergo - active and healthy sitting

Does your back hurt? Find out why...

Lumbar spine is the most loaded part of the spine - that is why the most often affected. It is the place where the biggest muscle groups operate and where the movement of the lower limbs is transmitted to the trunk.

Human spine is of a columnal shape made up of vertebrae that are connected with intervertebral discs. Mainly lumbar vertebrae bear the weight of upper part of the body. Spinal nerves (medulla spinalis) come out from spinal cord through small openings called neural foraminae. These nerves called peripheral motor nerves influence muscles, sensitive and vegetative activities of viscera. The column of vertebrae can go round a vertical axis and can move into all directions. The normal spine has an „S“-like curve when looking at it from the side.

Intervertebral discs enable movement round a vertical axis. They also act like shock absorbers by helping absorb pressure and their thickness can be changed according to actual stress. Inververtebral discs are nourished by diffusion and this nourishing process, which is necessary for correct function of discs, is into a large extent positively influenced by movement of spine. The diffuse is conditional on movement of the whole vertebrea system and intervertebral discs. The movement can be compared to a pump sucking in nutritive substances. The more the spine moves, the more liquid and nutrition are absorbed by discs.

The research shows that insufficient movement directly leads to backache. Problems with back are often caused mainly by long-time wrong posture and mainly by wrong static sitting.

Wrong sitting causes:

• headaches
• pain of nape
• backache
• pressed stomach
• pressed thigh muscles
• pressed veins in thighs
• disorder of vascularity in poples

Lack of movement or unilateral loading limit effectivity of the whole process and cause that intervertebral discs lose their elasticity and decline.

The person who spends most the time in a sitting position suffers from backache and overstrains. He often has to visit an orthopaedic surgery where he tries to lower consequences of wrong sitting. The human made to move in an upright position became a housebody in the modern time.

Dynamic sitting

Recently, therapeutic ball becomes more and more popular. Exercises on the ball activate back muscles and increase their strength. Chairs forergo are constructed in the way which enables similar movements as exercises on the ball. The people who suffer from backache and who spend most the time at work sitting will mainly appreciate it. Furthermore, the chairs keep normal working function.