title: Motion analysis in delirium: a novel method of clarifying motoric subtypes.
abstract: The usefulness of motor subtypes of delirium is unclear due to inconsistency in subtyping methods and a lack of validation with objective measures of motor activity levels. We studied patients with hyperactive, hypoactive, and mixed presentations of delirium were studied with 24-h accelerometer-based monitoring. The procedures were well tolerated and motor presentations were readily distinguished using the accelerometer-based measurements. The system was capable of identifying static versus dynamic activity and the frequency of changes in posture. Electronic motion analysis concurs with observed gross movement and can distinguish motorically defined subtypes according to quantitative and qualitative aspects of movement.
authors.affiliation: Department of Psychiatry, Midwestern Regional Hospital, Limerick, Ireland.
authors.forename: Maeve
authors.initials: M
authors.lastname: Leonard
authors.forename: Alan
authors.initials: A
authors.lastname: Godfrey
authors.forename: Martin
authors.initials: M
authors.lastname: Silberhorn
authors.forename: Marion
authors.initials: M
authors.lastname: Conroy
authors.forename: Sinead
authors.initials: S
authors.lastname: Donnelly
authors.forename: David
authors.initials: D
authors.lastname: Meagher
authors.forename: Gearóid
authors.initials: G
authors.lastname: Olaighin
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D003693:Delirium / Q000145:classification / Q000175:diagnosis* / Q000503:physiopathology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009039:Motion Perception / Q000502:physiology*; D009043:Motor Activity / Q000502:physiology*; D009483:Neuropsychological Tests; D011569:Psychiatric Status Rating Scales