Seasickness Susceptability and Vestibular Time Constant

Seasickness Susceptability and Vestibular Time Constant

Participants were selected from the military navy crewmembers prior to commencing of active sailing.

A vestibular time constant was calculated based on velocity step testing on a rotatory chair at baseline, 3 months and 6 month following active sailing duty.

A seasickness questionnaire (WIKER) was completed during follow-up visits. study participants were divided to three groups based on WIKER score - susceptible , non-susceptible and habituating. Vestibular time constant was compared between study groups.

Inclusion Criteria:

• healthy male Navy sailors in basic training

Exclusion Criteria:

• History of hearing loss
• Otoscopic findings of ear pathology
• An implanted electrode
• A finding of vestibulopathy upon otoneurological examination -
• Discontinuation of active sailing for any reason during study follow-up
• Withdrawal of informed consent.