Time delays prior to movement alter the drawing kinematics of elderly adults

Diana H. Romero, Arend W A Van Gemmert, Charles Howard Adler, Harold Bekkering, George E. Stelmach

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Position sense has been found to decay as a function of the time delay the limb remains in a static position prior to movement onset. Position sense has also been found to deteriorate as a function of aging, with increased reliance on vision by the elderly. This study investigated whether the pointing kinematics of elderly adults were differentially affected by delay compared to young adults, and whether visual information could compensate for the effects of delay. Young and elderly adults kept the limb in a static position for 1, 6, or 10 s prior to movement onset, both with and without vision of the limb, initial position, and the movement trajectory. Across groups, delay resulted in increased overall movement duration, decreased peak velocity including a shorter relative time to peak velocity, with decreased distance and duration of the primary submovement. Delay and lack of vision differentially decreased distance of the primary submovement for elderly adults. Vision was able to compensate to some degree for the effects of delay across age groups. The findings provide evidence that decays in position sense as a function of time create difficulties in incorporating the initial limb position in motor planning process in elderly adults.

Original languageEnglish (US)
Pages (from-to)207-220
Number of pages14
JournalHuman Movement Science
Volume22
Issue number2
DOIs
StatePublished - Apr 2003

Fingerprint

Biomechanical Phenomena
Time delay
Kinematics
Proprioception
Extremities
Group delay
Aging of materials
Trajectories
Young Adult
Planning
planning process
young adult
age group
Age Groups
time
lack
evidence
Group

Keywords

  • Aiming
  • Arm movements
  • Pointing
  • Position sense
  • Proprioception
  • Vision

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Experimental and Cognitive Psychology
  • Neuropsychology and Physiological Psychology
  • Human Factors and Ergonomics

Cite this

Time delays prior to movement alter the drawing kinematics of elderly adults. / Romero, Diana H.; Van Gemmert, Arend W A; Adler, Charles Howard; Bekkering, Harold; Stelmach, George E.

In: Human Movement Science, Vol. 22, No. 2, 04.2003, p. 207-220.

Research output: Contribution to journalArticle

Romero, Diana H. ; Van Gemmert, Arend W A ; Adler, Charles Howard ; Bekkering, Harold ; Stelmach, George E. / Time delays prior to movement alter the drawing kinematics of elderly adults. In: Human Movement Science. 2003 ; Vol. 22, No. 2. pp. 207-220.
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