The Buoy is designed to be off-balance, like its namesake bobbing device, though not as extremely as a Pilates ball; the idea is that the microadjustments you're continually making with your body are not annoying enough to be a hassle, but adequate to burn some calories. Also unlike a Pilates ball, the Buoy is height-adjustable.
Luke Hayman and his team continue their work for active design with the graphics for FitNation, an exhibition at the Center for Architecture that looks at different ways built environments can help people stay physically fit.
Active Design Guidelines - The Active Design Guidelines provides architects and urban designers with a manual of strategies for creating healthier buildings, streets, and urban spaces, based on the latest academic research and best practices in the field.
In the LEED for Neighborhood Development (LEED-ND) rating system, active design is pervasive in credits such as bicycle network and storage, walkable streets, access to recreation facilities and tree-lined and shaded streets. Shading from trees and energy savings have direct correlations.