  The present study investigates perceived comfort and whole-body vibration
transmissibility in intensive repetitive pitch exposure representing a bumpy
ride. Three sitting strategies (preferred, erect, and slouched) were evaluated
for perceived body discomfort and body kinematic responses. Nine male and
twelve female participants were seated in a moving-based driving simulator. The
slouched posture significantly increased lateral and yaw body motion and
induced more discomfort in the seat back area. After three repetitive
exposures, participants anticipated the upcoming motion using more-effective
postural control strategies to stabilize pelvis, trunk, and head in space.
