Roc Wheels Rockit - Key Seating Concepts; Tilt in Space and Hip Angle Adjustment; Sitting Position Analysis

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When a chair tilts in space, the person’s hip and
knee angle remain constant as the seat tilts
backward or forward.
Tilt in Space
Hip angle adjustment
When the hip angle is adjusted to a more
open or closed position
The anatomic pivots pictured represent the
major pivot points of the human body.
The center of gravity is the center of mass is. There is an equal
weight distribution on both sides of the center of gravity.
Passive Body Alignment Active Sitting Position Non-functional Sitting
Position