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Identifying the level of trunk control of healthy term infants aged from 6 to 9 months

Ana Luiza Righetto Greco1, Carolina Souza Neves da Costa1, Eloisa Tudella1

  • 1Department of Physical Therapy, Neuropediatrics Section, Federal University of São Carlos (UFSCar), Rod. Washington Luis, km 235, 13565-905, São Carlos, SP, Brazil.

Infant Behavior & Development
|February 7, 2018
PubMed

Insights

Infant trunk control develops segmentally and cephalocaudally. Six to seven-month-olds show thoracic control, while eight to nine-month-olds achieve full trunk control, aiding in identifying developmental delays.

Area of Science:

  • Pediatric motor development
  • Infant neurorehabilitation

Background:

  • Trunk control is crucial for overall motor development in infants.
  • Understanding typical trunk control progression aids in early identification of developmental deviations.

Purpose of the Study:

  • To identify the typical levels of trunk control in healthy term infants aged six to nine months.
  • To establish a developmental reference for trunk control using the Segmental Assessment Trunk Control (SATCo) tool.

Main Methods:

  • A cross-sectional study involving fifty-five healthy term infants aged six to nine months.
  • Trunk control was assessed using the Segmental Assessment Trunk Control (SATCo) tool while infants were seated.
  • Infants were positioned with a neutral pelvic alignment on a wooden bench.

Main Results:

  • Infants aged six to seven months demonstrated trunk control primarily in the thoracic region.
  • Infants aged eight to nine months exhibited full trunk control.
  • A clear segmental and cephalocaudal progression of trunk control development was observed.

Conclusions:

  • Trunk control development in infants follows a segmental, cephalocaudal pattern.
  • The findings provide a normative reference for assessing infant trunk control.
  • Early identification of delayed trunk control can facilitate timely interventions to support global motor development.

Keywords:
Early interventionHealthy infantsTrunk control

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