title: On the functional aspects of variability in postural control.
abstract: Current research in nonlinear dynamics and chaos theory has challenged traditional perspectives that associate high variability with performance decrement and pathology. It is argued that variability can play a functional role in postural control and that reduction of variability is associated with changes in balance with aging and neurological disease.
authors.affiliation: Department of Exercise Science, University of Massachusetts, Amherst 01003, USA. rvanemmerik@excsci.umass.edu
authors.forename: Richard E A
authors.initials: RE
authors.lastname: van Emmerik
authors.forename: Erwin E H
authors.initials: EE
authors.lastname: van Wegen
mesh_terms: D000375:Aging / Q000502:physiology*; D006801:Humans; D010300:Parkinson Disease / Q000503:physiopathology; D004856:Postural Balance / Q000502:physiology*; D011187:Posture / Q000502:physiology*; D011597:Psychomotor Performance / Q000502:physiology