Multi-Axis Vibration Mitigation and Habitability Improvement for Seated Occupants

This proposal addresses the continued development of an innovative seat cushion design that actively promotes healthy blood circulation in the upper legs and buttocks by reducing the seated pressure where blood flow is blocked; this restores oxygenated blood to these regions, which reduces or eliminates symptoms of numbness and muscle ache. The Phase II effort will initially focus on rigorous quantitative test that involves making physiological measurements that can be correlated with symptoms associated with long-duration sitting (numbness, excessive pressure, muscle ache, lower back pain, etc.). The base period of the Phase II study will be spent determining the values of the parameters that minimize discomfort and maximize the productivity of the seated occupant for extended periods of seated activity. A prototype seat cushion will be available at the end of the base period that can be used for demonstrations and further studies. An optional period of performance is proposed for Phase II during which the documentation necessary for NAVAIR review and approval of the seat cushion for flight testing on an E-2C will be developed. The deliverable at the end of the option period will be a seat cushion that has been approved for flight testing.