Regression analysis of gait parameters with speed in normal children walking at self-selected speeds

B W Stansfield1, S J Hillman, M E Hazlewood

  • 1Anderson Gait Analysis Laboratory, Edinburgh, Scotland, UK. benedict.stansfield@strath.ac.uk

Gait & Posture
|June 28, 2005
PubMed

Insights

Dimensionless analysis minimizes size effects on children's gait parameters. This study quantifies gait development using normalized speed, offering insights into normal subject locomotion but cautioning against individual prediction.

Area of Science:

  • Biomechanical Engineering
  • Pediatric Gait Analysis
  • Human Locomotion

Background:

  • Childhood growth involves significant changes in body size and proportions.
  • Gait parameters are known to vary with age and size in developing children.
  • Understanding these variations is crucial for assessing normal and abnormal locomotion.

Purpose of the Study:

  • To investigate the influence of dimensionless analysis on gait parameters in children.
  • To examine the effects of varying walking speed on gait characteristics.
  • To establish quantitative relationships between normalized speed and gait parameters for children.

Main Methods:

  • Prospective 5-year study involving 16 children.
  • Application of dimensionless analysis to normalize for body size differences.
  • Linear regression analysis of temporal-distance parameters, ground reaction forces, joint angles, moments, and powers.
  • Data collected across a range of walking speeds.

Main Results:

  • Dimensionless analysis effectively minimized the influence of children's size variations on gait parameters.
  • Normalized speed demonstrated linear relationships with key gait parameters (peak and trough values).
  • Quantitative descriptions of gait development relative to normalized speed were established.

Conclusions:

  • Normalized speed provides a reliable basis for describing gait development in children.
  • Linear relationships derived can estimate gait parameters from speed measurements in normal subjects.
  • Caution is advised for individual gait prediction due to data variability and extrapolation limitations.

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