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Diversity and regularity in infant crawling with typical development.
Shimpei Yamamoto1, Lee Yonghi1, Umi Matsumura1
1Health Sciences, Nagasaki University Graduate School of Biomedical Sciences: 1-7-1 Sakamoto, Nagasaki 852-8520, Japan.
Journal of Physical Therapy Science
|September 5, 2020
Summary
Infant crawling shows significant diversity. Infants starting to crawl earlier develop more movement variations, crucial for acquiring independent walking skills.
Area of Science:
- Developmental Pediatrics
- Motor Development
- Infant Movement Analysis
Background:
- Infant crawling is a key motor milestone preceding independent walking.
- Understanding variations in crawling is essential for developmental insights.
Purpose of the Study:
- To investigate the diversity and quantitative regularity of infant crawling variations.
- To examine the relationship between crawling variations and the acquisition of walking in typically developing infants.
Main Methods:
- Longitudinal study tracking infants from crawling onset to independent walking.
- Utilized multi-angle Internet Protocol (IP) camera recordings for detailed movement analysis.
- Coded crawling movements to quantify the number of variations over time.
Main Results:
- Observed significant diversity in crawling patterns among 19 infants.
- The cumulative number of crawling variations showed age-dependent patterns, varying individually.
- A negative correlation was found between crawling start age and the number of crawling variations at walking acquisition.
Conclusions:
- Infant crawling is characterized by considerable diversity.
- Earlier crawling onset is associated with a greater diversity of movement variations.
- Movement variation during crawling may play a role in the developmental trajectory towards walking.
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