How posChair 1’s poise reduces or cures back pain
(and keeps healthy backs healthy)

We saw on the Back Pain page that most back problems stem from sitting upright but letting the pelvis tip backwards off balance. It becomes a lever and puts excessive pressure on the discs.

posChair 1’s combination of forward sloping seat with rocker enables you to sit in a different way…

Distorted spine on normal chair

fig 1

Healthy spine on Wave Stool

fig 2

(Here are the pictures from the Back Pain page again - so you can compare the shapes)

Why the forward sloping seat?

Unlike most seats posChair 1 slopes forwards. This does two things to help the pelvis stay upright:

It lets the thighs slope downwards. For most people bringing the thighs up to horizontal, as most chairs do, tips the pelvis back. (This may be caused by shortened hamstrings, and sometimes by tight clothing too.)

It also exerts less pressure under the thighs, so they don’t support much torso weight (another cause of slumping). This makes sure the torso weight is supported directly below the spine.

Sitting on Wave Stool

Why is it on a rocker?

The rockers are to encourage balance and poise.

We have a wonderful sense of balance for standing and walking, which we take for granted because we find it so easy. But we seldom get the chance to balance when sitting.

It is easier to sit upright when you are balanced. It is relaxing yet invigorating at the same time. It is easier to be alert and attentive than when your body is allowed to become lifeless against a backrest. And when you are alert and attentive it is easier to sit upright.

Even when sitting still you feel the freedom to move. (There are always imperceptible movements that keep your balancing reflexes in use, which keeps them working at their best).

As long as the pelvis remains in balance it can support a lot of bodyweight. It takes very little muscular effort to keep it upright because the support is directly below where the weight presses down. It is not true that sitting upright needs strong back muscles. If you are using much effort you are sitting inefficiently.
You do not need to strengthen your back, only to take away the forces that tip you off balance.

Many people find they naturally sit like in Fig. 2, and find it extremely comfortable. This is a healthy natural spine alignment.
For a healthy back this is the single most important thing you can do to ensure it stays healthy.

For an injured back this stops the cause of most of the damage, and allows healing to begin.

Who is the Wave Stool for?

It is popular with computer users, office workers, musicians, artists, therapists, craftspeople and more. It is ideal anytime you want to sit upright and attentive, yet be relaxed and comfortable.

People interested in using their bodies well, who perhaps do yoga, tai chi, or Alexander Technique, particularly appreciate the Wave Stool.

Won't I miss the backrest?

You have got used to needing a backrest because most seats tip you back off balance. On the Wave Stool you are no longer being tipped backwards so most people find a backrest simply isn't needed.

A Healthy back

To treat or to prevent back pain, doctors now recommend keeping mobile and avoiding immobility. This is difficult if you have to sit for long periods - unless you use a seat that can move.

Ligaments that have been stretched can begin to shorten and protect the discs again - if you minimise the time you sit with a slumped pelvis.

If you suffer from osteoporosis or another condition it is even more important for you not to distort your spine when you sit.

…thank you for the Wave Stool you made for me, it is in constant use, and missed when I have to use an ordinary chair. Eileen Andrews

Kneeling Chairs

There are other forward sloping seats on rockers, the most common are kneeling chairs. These have such a steep seat angle that a knee rest is needed to stop you sliding off.

They work very well for some, but most of the people we have spoken to find the fixed, bent leg position and pressure on the knees restrictive and uncomfortable after a time. They say the Wave Stool has more natural freedom for knees and legs. It is also quicker and easier to stand up and sit down.

Helping muscles relax

If you have tense aching muscles (which often try to protect you after an injury, but can become habitually tense, and are often the cause of dull backache), they can begin to let go as you discover how easy it is being upright just by balance. The stool's gentle movements also help.

Alexander Technique

This is one of very few seats designed with an insight into Alexander Technique - its balance and movement gently stimulates the user to become more aware of themselves.
Read more about Alexander Technique.

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