Infant Sitting and Multi-Directional Reaching Skill.
J Mot Behav
; 56(2): 109-118, 2024.
Article
in En
| MEDLINE
| ID: mdl-37751896
ABSTRACT
We tested twenty-one 6- to 10-month-old infants with a wide range of sitting experience in forward and rightward reaching during unsupported sitting on the floor. Sessions were video-recorded for further behavioral and machine learning-based kinematic analyses. All infants, including novice sitters, successfully touched and grasped toys in both directions. Infant falls, hand support, and base of support changes were rare. Infants with more sitting experience showed better upright posture than novice sitters. However, we found no differences in trunk displacement or reaching kinematics between directions or across sitting experience. Thus, multi-directional reaching is functional in both novice and experienced infant sitters. We suggest that trunk and arm stability in sagittal and frontal planes is integral to learning to sit.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Posture
/
Hand
Limits:
Humans
/
Infant
Language:
En
Journal:
J Mot Behav
Year:
2024
Document type:
Article
Affiliation country:
United States
Publication country:
EEUU
/
ESTADOS UNIDOS
/
ESTADOS UNIDOS DA AMERICA
/
EUA
/
UNITED STATES
/
UNITED STATES OF AMERICA
/
US
/
USA