What you should know about sitting. Legs and feet Conclusions Active sitting Walking, jogging and running. While walking, jogging or running the back is subjected to shocks and forces which far exceed those found when seated in the classical 3 x 90 upright posture. Despite the absence of ambulatory support for the lower back, these activities are known to protect against back injury.
Healthy muscles make for a healthy back.
These are is a generic terms for a range of different postures which emphasise continuous mobility. This, it was claimed, would maintain the tone of supporting muscles, encourage deep breathing and promote improved circulation. One briefly popular solution was the knee support chair. In the example to the left, a rocking undercarriage and kneeler are combined. Unfortunately, experience has shown that few of these designs are suitable for long periods of uninterrupted desk work.