Impact of alignment to gravito-inertial force on motion sickness and cardiopulmonary variables

Introduction: In tilting trains partial alignment to the gravito-inertial force (GIF) in the curves seems to be the best tilt compensation to reduce the incidence of motion sickness. We investigated the effect of alignment to the GIF on the development of motion sickness during low-frequency horizontal motion. Methods: There were 12 healthy...

Respiratory impact on motion sickness induced by linear motion

Motion sickness incidence (MSI) for vertical sinusoidal motion reaches a maximum at 0.167 Hz. Normal breathing frequency is close to this frequency. There is some evidence for synchronization of breathing with this stimulus frequency. If this enforced breathing takes place over a larger frequency range (0.05-0.8 Hz) and whether this contributes...

Hyperventilation in a motion sickness desensitization program

Introduction: In motion sickness desensitization programs, the motion sickness provocative stimulus is often a forward bending of the trunk on a rotating chair, inducing Coriolis effects. Since respiratory relaxation techniques are applied successfully in these courses, we investigated whether these repetitive trunk movements by themselves may...

Type A behaviour, borderline hyperventilation and psychological, psychosomatic and neuroendocrine responses to mental task load

Psychological, psychosomatic and neuroendocrine (in blood) responses to mental task load were investigated in relation to type A behaviour and borderline hyperventilation. For this purpose 32 apparently healthy, male volunteers were classified on the basis of their scores on the Jenkins Activity Survey (JAS) and on a questionnaire assessing...