Sitting Postural Control in Infants With Typical Development, Motor Delay, or Cerebral Palsy

Kyvelidou, Anastasia; Harbourne, Regina T.; Willett, Sandra L.; Stergiou, Nicholas

doi:10.1097/pep.0b013e318277f157

Cited by 32 publications

(25 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…(18, 19) For example, infants diagnosed with or at risk for cerebral palsy demonstrate less complex or more repetitive postural sway strategies in the early stages of sitting which is unlike typically developing infants who have a higher complexity at this stage of sitting. (19) Similarly, infants born preterm use a less complex or more repetitive postural sway pattern at 1–3 weeks of adjusted age as compared to infants who were born full term and are at low risk for developmental delays. (18) However, it is unclear if postural complexity is decreased in at risk infants only in the first weeks of age or if the differences persist through early development.…”

Section: Introductionmentioning

confidence: 99%

Postural complexity differs between infant born full term and preterm during the development of early behaviors

Dusing

Izzo

Thacker

et al. 2014

Early Human Development

View full text Add to dashboard Cite

Background and Aims Postural control differs between infants born preterm and full term at 1–3 weeks of age. It is unclear if differences persist or alter the development of early behaviors. The aim of this longitudinal study was to compare changes in postural control variability during development of head control and reaching in infants born preterm and full term. Methods Eighteen infants born preterm (mean gestational age 28.3±3.1 weeks) were included in this study and compared to existing data from 22 infants born full term. Postural variability was assessed longitudinally using root mean squared displacement and approximate entropy of the center of pressure displacement from birth to 6 months as measures of the magnitude of the variability and complexity of postural control. Behavioral coding was used to quantify development of head control and reaching. Results Group differences were identified in postural complexity during the development of head control and reaching. Infants born preterm used more repetitive and less adaptive postural control strategies than infants born full term. Both groups changed their postural complexity utilized during the development of head control and reaching. Discussion Early postural complexity was decreased in infants born preterm, compared to infants born full term. Commonly used clinical assessments did not identify these early differences in postural control. Altered postural control in infants born preterm influenced ongoing skill development in the first six months of life.

show abstract

Section: Introductionmentioning

confidence: 99%

Postural complexity differs between infant born full term and preterm during the development of early behaviors

Dusing

Izzo

Thacker

et al. 2014

Early Human Development

View full text Add to dashboard Cite

show abstract

“…Every breath, every slight movement of the head and arms, creates destabilizing forces that cause the body to sway within the base of support. A destabilizing force in one direction must be met with a compensatory sway in the opposite direction (Deffeyes, Harbourne, Stuberg, & Stergiou, 2011; Kyvelidou, Harbourne, Willett, & Stergiou, 2013). At first, infants’ swaying motions are overly large and wildly variable (Cignetti, Kyvelidou, Harbourne, & Stergiou, 2011); they frequently over-compensate so that attempts to recover balance in one direction cause them to fall in the opposite direction (Saavedra et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Behavioral flexibility in learning to sit

Rachwani

Soska

Adolph

2017

Developmental Psychobiology

View full text Add to dashboard Cite

What do infants learn when they learn to sit upright? We tested behavioral flexibility in learning to sit—the ability to adapt posture to changes in the environment—in 6- to 9-month-old infants sitting on forward and backward slopes. Infants began with slant at 0°; then slant increased in 2° increments until infants lost balance. Infants kept balance on impressively steep slopes, especially in the forward direction, despite the unexpected movements of the apparatus. Between slant adjustments while the slope was stationary, infants adapted posture to the direction and degree of slant by leaning backward on forward slopes and forward on backward slopes. Postural adaptations were nearly optimal for backward slopes. Sitting experience predicted greater postural adaptations and increased ability to keep balance on steeper changes of slant, but only for forward slopes. We suggest that behavioral flexibility is integral to learning to sit and increases with sitting experience.

show abstract

“…CP is the most common motor disability in childhood, with one in 323 children currently diagnosed [1]. Children with CP may experience difficulties in developmental benchmarks such as sitting, crawling, standing, or walking [3–5]. However, many signs of CP are not apparent before age two, making it difficult for clinicians to intervene early [1].…”

Section: Introductionmentioning

confidence: 99%

“…Evaluating sitting posture is a potential avenue for intervention in CP, as we can measure small changes that occur as children develop the ability to sit [6]. Early intervention for CP is crucial for long-term outcomes, so there is an urgent need to implement methods of intervention immediately [7,8]. Thus, it is necessary to identify a quantifiable method to assess the developing mechanisms of sitting postural control in children with early issues, recognize the problems to target through early intervention, and determine early intervention efficacy [9,10].…”

Section: Introductionmentioning

confidence: 99%

“…Such paradigms have demonstrated that postural sway data in child sitting can separate children with developmental delays from children with typical development (TD). For example, Kyvelidou et al [8] found that full-term typically developing infants explore more types of motor strategies at the onset of sitting, which suggests they have greater variability in their postural sway compared to those born pre-term and with developmental delays. Thus, variability in postural sway can be an indicator of health in movement [14,16].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Reliability of center of pressure measures for assessing the development of sitting postural control through the stages of sitting

2017

Self Cite

View full text Add to dashboard Cite

Cerebral palsy (CP) impairs an individual’s ability to move and control one’s posture. Unfortunately, the signs and symptoms of CP may not be apparent before age two. Evaluating sitting posture is a potential way to assess the developing mechanisms that contribute to CP. The purpose of this project was to determine the reliability of linear and nonlinear measures, including inter- and intrastage reliability, when used to analyze the center of pressure (COP) time series during the stages of sitting development in children with typical development (TD) and with/at-risk for cerebral palsy (CP). We hypothesized that nonlinear tools would be more reliable than linear tools in assessing childrens’ sitting development, and reliability would increase with development. COP data was recorded for three trials at eight sessions. Linear parameters used were root mean square, range of sway for the anterior-posterior (AP) and medial-lateral (ML) directions, and sway path. Nonlinear parameters used were Approximate Entropy, the largest Lyapunov Exponent, and Correlation Dimension for the AP and ML direction. Participants consisted of 33 children with TD and 26 children with/at-risk for CP. Our results determined that COP is a moderately reliable method for assessing the development of sitting postural control in stages in both groups. Thus, clinicians may be able to use measures from COP data across stages to assess the efficacy of therapeutic interventions that are intended to improve sitting postural abilities in children with/at-risk for CP.

show abstract

Sitting Postural Control in Infants With Typical Development, Motor Delay, or Cerebral Palsy

Abstract: The present findings may be helpful in directing and testing intervention protocols for infants born preterm.

Cited by 32 publications

References 21 publications

Postural complexity differs between infant born full term and preterm during the development of early behaviors

Postural complexity differs between infant born full term and preterm during the development of early behaviors

Behavioral flexibility in learning to sit

Reliability of center of pressure measures for assessing the development of sitting postural control through the stages of sitting

Contact Info

Product

Resources

About