Evaluation and interpretation of the bucket test in healthy individuals.
OBJECTIVE
To determine and interpret the range of normal deviation of the bucket test in healthy subjects Subjects and methods: Study design: Cross-sectional study in a secondary care center.


INCLUSION CRITERIA
subjects ≥18 years old with no otologic or neurologic symptoms and normal complete neuro-otological examination. The subjective visual vertical was evaluated binocularly using the bucket test. Five measurements were made on the clockwise direction and five on the counterclockwise direction. The examiner selected the starting point, the patient then manipulated the bucket and it stopped when the volunteer considered the line reached the vertical position.


RESULTS
Fifty healthy volunteers were included, 16 (32%) were men, and 34 (68%) women with a mean age of 34 years. The mean value found clockwise was 1.93° ± 2.26° and counterclockwise sense was of 0.86° ± 2.44°. Mean normal values ranged from 1.4° ± 1.9°.


CONCLUSIONS
The bucket test is easy and quick to perform; we recommend to use a range of -1.0° to +3.0° as normal values in the healthy population.
['Celis-Aguilar|Erika|E|https://orcid.org/0000-0003-2210-7637', 'Castro-Urquizo|Angel|A|', 'Mariscal-Castro|Juan|J|']
D000328:Adult D000368:Aged D002493:Central Nervous System Diseases D003430:Cross-Sectional Studies D003939:Diagnostic Techniques, Otological D005260:Female D064368:Healthy Volunteers D006801:Humans D008297:Male D008875:Middle Aged D012016:Reference Values D015837:Vestibular Diseases D055815:Young Adult
Bucket test subjective visual vertical otolith organs utricule vestibular dysfunction