Human Tolerance to Lateral Impact With Lap Belt Only
A series of controlled deceleration experiments was performed with 37 human male volunteers to determine, if possible, human tolerance to lateral impacts while restrained in a seat with a lap belt. The subjects were exposed in 50 different experiments at average impact G of 3.25 to 9.02 for durations of 0.3 to 0.1 seconds. No permanent physiological changes were noted. Minor physical complaints were reported by 50 per cent of the subjects when exposed to 6.25 average G or more. Increasing danger from lateral flexion of up to 30° from the vertical halted the experiments at the 9.02 average G.
ALBERT B. ZABOROWSKI
6571st Aeromedical Research Laboratory Aerospace Medical Division Air Force Systems Command Holloman Air Force Base, New Mexico