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Related Experiment Videos

Developmental changes in prehension during childhood.

M Paré1, C Dugas

  • 1Centre de recherche en sciences neurologiques, Université de Montréal, Canada.

Experimental Brain Research
|May 6, 1999
PubMed
Summary
This summary is machine-generated.

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Grasping skills develop significantly in childhood. Children aged 2-9 show increasing grip force control, with anticipatory strategies emerging around age 4.

Area of Science:

  • Motor control development
  • Childhood developmental milestones
  • Human grasping behavior

Background:

  • Anticipatory control of grip and load force is not innate.
  • This control develops over several years in childhood.

Purpose of the Study:

  • To examine the development of grasping behavior in children.
  • To quantify the relationship between grip force and object vertical acceleration.

Main Methods:

  • Children and adults used a precision grip to lift an instrumented object of varying size and weight.
  • Measured grip force, grip force rate, and object's vertical position and acceleration profiles.

Main Results:

  • Distinct developmental milestones in precision grip maturation observed from 2 to 9 years.

Related Experiment Videos

  • Negative correlation between peak acceleration and grip force in 2-year-olds (r=-0.51).
  • Positive correlation emerged by age 3 (r=0.28) and strengthened up to age 9; anticipatory control strategies began emerging around age 4.

    • Conclusions:

    • Grasping skills show significant developmental progression throughout childhood.
    • Anticipatory grip force control emerges gradually, with key milestones between ages 2 and 9.
    • Children develop symmetrical acceleration/deceleration control and refined grip force application by age 4.