When the first ergonomic chairs were developed some 30 years ago they were funny looking items. Most had no backs and required the settee to put their legs underneath them sell so as to maintain balance. To be frank these were no more than a novelty and for the most part completely worthless. They did have a stylish look. Unknown to us all the time was that the design elements of ergonomic office chairs were extraordinarily sound.
Such ideas as adjustable lumbar support and foot placement for better circulation were completely valid. Today when we look at an ergonomic office chair it in no way resembles those early models. The ergonomic office chair we buy today looks for the most part exactly like any conventional chair. However the differences are most important. Completely adjustable seat height allows for proper line of sight viewing of computer monitors. Adjustable armrests are extremely important so as to not tear upon chest muscles.