“Sitting is the new smoking” has become a popular phrase to describe the dangers of a sedentary lifestyle. Previous research has shown that prolonged sitting can cause irreversible damage to the human body, including more than thirty types of chronic illnesses and acute medical issues, such as Deep Vein Thrombosis (DVT). Standing up to walk around and take breaks during long hours of sitting is one way to mitigate these health problems. However, in some cases this is not possible—the long haul flight in an economy seat requires passengers to remain seated for many hours. 

To address this problem, I researched and designed an economy passenger seating system aimed at effectively reduce the risk of DVT and reducing the overall negative impacts of sedentary air travel. The concept was developed in consultation with faculty in the UW School of Nursing. An important part of my process was the construction of full-scale prototypes to refine the ergonomic details of the seat. The design aligns with related Federal Aviation Regulation guidelines, engineering constraints, and the airlines concern for a feasible concept. The result is an asymmetrical seat design that increases the space for body movements, while integrating a reminder system to encourage mobility.


Expanse:a new airplane seat that encourages healthy movement.


The project EXPANSE was exhibited at the Henry Art Gallery in Seattle for one month, beginning on June 15th, 2015.

Expanse received positive feedback from audiences of different backgrounds and professions. Many people asked about when this seat would be adopted by airlines. The feedback I received validated the potential market value of this concept and also continues to motivate me to bring this idea to reality.

I’m still working on improving the concept; if you have any suggestion or interested in knowing more about this project, please contact me through kunxudesign@yahoo.com Your suggestion will be appreciated and valued!