These in-depth essays discuss the science and research behind the ergonomics of Aeron and Mirra chairs. To view or download these PDF documents, use the links provided below.
Product Essays for Aeron
The Anthropometrics of Fit (260KB): Explains the concept of designing a chair that fits smaller and larger people as well as "average-sized" people. Focuses on the custom fit provided by the Aeron chair's three sizes and Pellicle suspension, but research is relevant to all seating.
The Art of Pressure Distribution (169KB): Discusses how a chair can be designed so that the sitter's body, and not the underlying structure of the seat pan and backrest, determines the peak pressure areas. Highlights the design of the Aeron chair, including PostureFit lower-back support, but research is relevant to all seating.
The Attributes of Thermal Comfort (115KB): Details the importance of designing a chair that "breathes" so that the sitter experiences the same thermal conditions when sitting as when standing. Focuses on the Aeron chair, but research is relevant to all seating.
The Benefits of Pelvic Stabilization (184KB): Compiles findings on stabilizing the sacral-pelvic region to ensure a natural spinal curvature and more healthful sitting in upright seated postures. Describes the optional PostureFit pelvic stabilizer and presents results of studies showing improved user comfort and posture in over 80% of participants.
The Kinematics of Sitting (112KB): Compiles research on healthful seating for the work environment. Discusses the idea that a chair should move the way the human body moves, supporting all the sitting postures assumed at work. Focuses on the Aeron chair, but findings are relevant to all seating.
Product Essays for Mirra
The Evolution of Anthropometrics of User Control (128KB): Examines anthropometrics research that drove the geometry of the Mirra chair. Describes design features that allow the single-sized chair to accommodate 95 percent of workers without restricting comfort. Examines how the design, location, and responsiveness of controls encourage user adjustments.
Supporting the Biomechanics of Movement (77KB): Examines the connection between the seated body's natural pivot points and a work chair's tilt movement. Describes how the Mirra chair's Harmonic tilt mechanism mimics the body's movement to provide responsive tilt that doesn't stress the body.
Supporting the Spine When Seated (248KB): Identifies the unique requirements of the four regions of the human spine during seated work and discusses the need for work chairs to accommodate anthropometric differences in spinal anatomy. Identifies unique features of the Mirra chair that provide dynamic support for all regions of the back in a wide range of people.
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