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Learning to crawl
K E Adolph1, B Vereijken, M A Denny
1Department of Psychology, New York University, New York, USA. adolph@psych.nyu.edu
Child Development
|December 5, 1998
Summary
Infant crawling development is not stage-based. Early belly crawling experience enhances later hands-and-knees crawling proficiency, independent of age or size.
Area of Science:
- Developmental Psychology
- Motor Development
- Infant Behavior
Background:
- Crawling is a crucial milestone in infant motor development.
- Previous research suggested a fixed progression of crawling stages.
- The influence of prior crawling experience on subsequent motor skills requires further investigation.
Purpose of the Study:
- To examine the effects of infant age, body dimensions, and crawling experience on motor development.
- To determine if crawling development follows discrete, obligatory stages.
- To understand how early crawling patterns influence later crawling proficiency.
Main Methods:
- Longitudinal observation of 28 infants from initial crawling attempts to walking.
- Recording and analysis of various crawling postures (e.g., belly crawling, hands-and-knees crawling).
- Statistical analysis to correlate crawling experience with developmental progression and efficiency.
Main Results:
- Infant crawling development is variable, not adhering to strict, obligatory stages.
- A significant portion of infants skipped belly crawling, proceeding directly to hands-and-knees.
- Duration of experience with earlier crawling forms predicted speed and efficiency in later forms.
- Infants who belly crawled were more proficient at hands-and-knees crawling than those who skipped it.
Conclusions:
- Crawling development is a flexible process, not defined by discrete stages.
- Experience with earlier crawling postures provides transferable benefits to later motor skills.
- Motor skill acquisition is influenced by prior experience, not solely by age or physical dimensions.
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