Effects of infant care posture and weight on static postural balance

Ji-Won Kim1,2, Sang-Ho Cha1, Min-Kyun Lee1

  • 1Department of Biomedical Engineering, Konkuk University, Chungju, Korea.

Insights

Carrying infants on the back, especially heavier ones, significantly impacts postural balance more than holding them. This research highlights risks associated with infant care postures.

Area of Science:

  • Biomechanics
  • Human Movement Science
  • Ergonomics

Background:

  • Postural balance during infant care is understudied.
  • Infant care activities can pose risks for musculoskeletal issues and falls.

Purpose of the Study:

  • To quantify static postural balance in different infant care postures.
  • To assess the influence of infant dummy weight on postural stability.

Main Methods:

  • Sixteen healthy adults stood on a force platform in holding and back-carrying postures.
  • Infant dummies weighing 4.6 kg and 9.8 kg were used.
  • Center of Pressure (COP) data analyzed using two-way repeated measure ANOVA.

Main Results:

  • Back carrying, particularly with a 12-month dummy, showed greater COP amplitude, distance, peak power, velocity, and area.
  • Significant effects of infant weight were observed, primarily in the anterior-posterior direction.
  • Back carrying posture significantly reduced postural stability compared to holding.

Conclusions:

  • Findings suggest increased fall risk and potential for musculoskeletal disorders in back-carrying postures.
  • Results can inform the design of assistive devices to enhance postural balance during infant care.
Abstract

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