For the value conscious, I suggest the Herman Miller Equa. You can find them used for ~$200-ish, some with warranty. Best trading chair I ever owned (Mine is >10 years old... a little wear on the seat, but otherwise still perfect... cylinder replacements ~$40.). When the chair first came out, cost >$1,000 and was a "Design Of The Year" award winner. If mine were to break, I'd look for another. FWIW...
Herman Miller is well known for its wide range of high quality ergonomic mesh chairs and also considered to be an innovative pioneer in the industry. You can choose from chairs with adjustable arms, multi-adjustable height and lumbar support that uses the latest advances in technology coupled with the science of ergonomics. Herman Miller ergonomic chairs comes with a twelve year warranty that covers all electrical components as well as any labor costs. Herman Miller Equa XR Ergonomic Work Chair The chair is available in leather with polished aluminum and it comes in large or medium size. Featuring thick, foam padding and continual back support via the one piece shell, the Equa XR also has a knee-tilt mechanism to reduce pressure and swelling in the legs, a benefit noted in more than one ergonomic chair review by consumers. Like all chairs from Herman Miller, the Equa XR ergonomic work chair is covered by their exclusive twelve year parts and labor warranty. The large Equa XR chair measures 25.5 inches wide by 17.7 inches deep and is 17.5 to 22.5 inches high and has a weight capacity of 300 pounds. The medium Equa XR measures 25.5 inches wide by 16.7 inches deep and 15.5 to 20.5 inches high.
I bought powerlift recliner on amzon after checking some info here power lift recliner chairs are a great way to get in and out of chairs when you value your own freedom and nice place for nap after work.
Saddle chair From Wikipedia, the free encyclopedia Divided saddle chair A saddle chair uses the same principles in its design as an equestrian saddle. It is equipped with a chair base on casters and a gas cylinder for adjusting the correct sitting height. The casters enable moving around and reaching out for objects while sitting. Some saddle chairs have backrests, but most do not. Riding-like sitting on a saddle chair differs from sitting on a conventional chair. Saddle chair users sit 20–30 cm higher, which puts the hips and the knees into a 135° angle, compared to the 90° angle typically associated with sitting on a traditional chair. Because the saddle chair is higher than a normal office chair, the desk has to be higher as well. For this purpose there are desks that can be electronically or mechanically adjusted to fit the user. A saddle chair can also be used with a normal office desk, but then the desk has to be lifted up with height extension pieces. The saddle chair seat is either solid or divided. A divided seat reduces pressure on the perineum and lowers the temperature in the genital area. A divided seat is thought to be healthier, especially for men, than a solid seat. Some saddle chairs include not only height adjustments but also a tilt mechanism. There is also a divided saddle chair model on the market that has an adjustable gap between the two seat parts. Accessories, such as elbow and wrist supports, are available for saddle chairs to make different work tasks easier. Benefits and adjustments A side-saddle chair can benefit men by decreasing the testicular temperature, and may help both men and women with lumbar support.[1] [2] [3] [4] Bloomberg Businessweek endorsed the saddle chair, noting while there is no medical evidence it helps increase sperm production, it "tips your pelvis and spine into the right position and un-squishes your genitals.[5] Adapting to a saddle chair takes time and requires a new kind of attitude towards sitting. The most common reason for using a saddle chair is that the users feel it is healthier for the back and legs than a standard chair. An intervention study on schoolchildren[6] found that initially saddle chairs were liked better, but the difference leveled off over time.