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Power and precision grip force control in three-to-five-year-old children: velocity control precedes amplitude

Nancy L Potter1, Raymond D Kent, Mary J Lindstrom

  • 1Department of Speech and Hearing Sciences, Washington State University, Spokane, WA 99210-1495, USA. nlpotter@wsu.edu

Experimental Brain Research
|January 25, 2006
PubMed

Insights

Preschool children

Area of Science:

  • Pediatric motor development
  • Motor control and learning
  • Developmental psychology

Background:

  • Motor control development in children is crucial for daily activities.
  • Understanding the progression of grip formations and force regulation is key.
  • Preschool years represent a critical period for refining motor skills.

Purpose of the Study:

  • To investigate the development of motor control strategies in young children.
  • To characterize changes in force regulation using power and precision grips.
  • To identify age-related and performance-related changes in motor skills.

Main Methods:

  • A visually guided force regulation task was employed.
  • Fifty typically developing preschool children (3.0-5.5 years) participated.
  • Children performed ramp and hold tasks using power and precision grips with both hands.

Main Results:

  • Children showed increased strength and decreased initial force overshoot with age.
  • Rate of force release decreased, indicating developmental changes.
  • Cluster analysis revealed non-linear development, with velocity measures maturing before amplitude measures.

Conclusions:

  • Force control development in preschoolers is non-linear.
  • Velocity aspects of motor control mature earlier than amplitude aspects.
  • Findings inform our understanding of pediatric motor skill acquisition.

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