Age-related changes in the kinematics of curved drawing movements: relationships between tangential velocity and the radius of curvature.

Age-related changes in the kinematics of curved drawing movements: relationships between tangential velocity and the radius of curvature. Research Abstract Details 

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Age-related changes in the kinematics of curved drawing movements: relationships between tangential velocity and the radius of curvature. Abstract Text:

Age-related motor slowing may result from abnormal trajectory formation. Curved trajectories can be described by a 1/3 power law linking velocity and radius of curvature. As a basic coordinative principle that emerges with maturation, factors producing any variation in this relationship may thus provide insights into age-related changes in the coordination of movement. The authors determined whether variations in the fit of a 1/3 power law with advancing age were associated with temporal or postural constraints. Young and older adults moved under temporal (speed and timing cues) or postural (joint combinations used) constraints, while performing elliptical movements upon a graphics tablet at 1 or 2 Hz. A 1/3 power law was influenced by variations in speed and the joint combinations employed, but reductions of fit were not necessarily linked to force inefficiency. Age-related reductions in the strength of a 1/3 power law were a function of postural constraints.

Age-related changes in the kinematics of curved drawing movements: relationships between tangential velocity and the radius of curvature. Publishing Authors By Initials

For similar psychological phenomena and processes: psychomotor performance research abstracts see: psychological phenomena and processes: psychomotor performance research

PUBMED ID PMID:

MEDLINE DATE: 2002 Apr-Jun

Age-related changes in the kinematics of curved drawing movements: relationships between tangential velocity and the radius of curvature. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Experimental aging research

VOLUME: 28

Page Numbers: 215-29

Journal Abbreviation:

ISSN: 0361-073X

DAY: 25

MONTH: 02

YEAR: 2008

Age-related changes in the kinematics of curved drawing movements: relationships between tangential velocity and the radius of curvature. Information

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LANGUAGE: eng

NlmUniqueID: 7603335

Age-related changes in the kinematics of curved drawing movements: relationships between tangential velocity and the radius of curvature. Keywords Mesh Terms:

KEYWORDS: Psychomotor Performance

MESH TERMS: psychology

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Grant and Affiliation Information for Age-related changes in the kinematics of curved drawing movements: relationships between tangential velocity and the radius of curvature.

AFFILIATION: Psychology Department, Monash University, Clayton, VIC 3800, Australia.

Country: United States

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MEDLINETA: Exp Aging Res

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