Accession Number:

AD0772702

Title:

Perception of Body Position and Susceptibility of Motion Sickness as Functions of Angle of Tilt and Angular Velocity in Off-Vertical Rotation,

Descriptive Note:

Corporate Author:

NAVAL AEROSPACE MEDICAL RESEARCH LAB PENSACOLA FL

Personal Author(s):

Report Date:

1973-06-04

Pagination or Media Count:

13.0

Abstract:

Four normal subjects manifested little or no susceptibility to motion sickness in a chair device tilted 10 degrees off-vertical and rotated at 2.5 rpm with further rate increases the end-point to mild symptoms was always reached and within increasingly short durations. Susceptibility was maximal at either 15 rpm or 20 rpm but with higher rotational rates declined rapidly, reaching a plateau of relatively low susceptibility at 40 rpm and 45 rpm furthermore, at these higher velocities, the subjects began to lose their sensation of being tilted off-vertical. Two subjects were asymptomatic when the chair was tilted 2.5 degrees off-vertical and rotated at 17.5 rpm with greater angles of tilt susceptibility of all subjects increased in ever-decreasing amounts. Author

Subject Categories:

  • Stress Physiology

Distribution Statement:

APPROVED FOR PUBLIC RELEASE