title: Risk factors of falls in community dwelling active elderly.
abstract: OBJECTIVE
  To search for measures to describe and relate to accidental falls in community dwelling elderly.
  
  
  METHODS
  A EuroQol EQ-5D questionnaire based on a patient's otoneurological case history provided a general health related quality of life measure, a fall history for the last 3 months and force platform measures for 96 active elderly from a pensioner organization.
  
  
  RESULTS
  On average, the elderly experienced 0.3 falls over the preceding three months. A fall was seen to cause a significant deterioration in the quality of life and vertigo and caused fear of falling. The postural instability correlated with falls. Vertigo was present among 42% and was most commonly characterized as episodic and rotatory in factorial analysis items relating to vertigo correlated to falls and balance complaints. Four factors were identified and three of these correlated with falls. Vestibular failure correlated to a fall occurring when a person was rising up; Movement intolerance correlated with falls due to slips and trips, and Near-syncope factor correlated to falls for other reasons. In posturography, the variable measuring critical time describing the memory based "closed loop" control of postural stability carried a risk for accidental fall with an odds ratio of 6. The variable measuring zero crossing velocity showed a high rate of velocity change around the neutral position of stance.
  
  
  CONCLUSIONS
  Vertigo and poor postural stability were the major reasons for falls in the active elderly. In ageing, postural control is shifted towards open loop control (visual, proprioception, exteroception and vestibular) instead of closed loop control and is a factor that contributes to a fall.
authors.affiliation: Department of Otolaryngology, University Central Hospital of Tampere and University of Tampere, Medical School, Finland.
authors.forename: Eeva
authors.initials: E
authors.lastname: Tuunainen
authors.affiliation: Department of Otolaryngology, University Central Hospital of Tampere and University of Tampere, Medical School, Finland.
authors.forename: Jyrki
authors.initials: J
authors.lastname: Rasku
authors.affiliation: Department of Geriatric Medicine, Hatanpää City Hospital, Tampere, Finland.
authors.forename: Pirkko
authors.initials: P
authors.lastname: Jäntti
authors.affiliation: Department of Otolaryngology, University Central Hospital of Tampere and University of Tampere, Medical School, Finland. Electronic address: Ilmari.pyykko@uta.fi.
authors.forename: Ilmari
authors.initials: I
authors.lastname: Pyykkö
mesh_terms: D000058:Accidental Falls / Q000706:statistics & numerical data*; D000368:Aged; D000369:Aged, 80 and over; D000375:Aging / Q000502:physiology*; D005260:Female; D006801:Humans; D057187:Independent Living / Q000706:statistics & numerical data; D008297:Male; D008875:Middle Aged; D004856:Postural Balance / Q000502:physiology*; D011434:Proprioception / Q000502:physiology; D012307:Risk Factors; D011795:Surveys and Questionnaires; D013575:Syncope; D014717:Vertigo / Q000453:epidemiology*; D015837:Vestibular Diseases / Q000453:epidemiology; D014796:Visual Perception / Q000502:physiology
keywords: Characteristics of vertigo; Elderly; Falls; Vestibular failure