Related Experiment Video
Updated: Jul 26, 2026
Clinical Assessment of Spatiotemporal Gait Parameters in Patients and Older Adults
Published on: November 7, 2014
Relationship of factors affecting age of onset of independent ambulation
D F Stanitski1, P J Nietert, C L Stanitski
1Department of Orthopaedics, Medical University of South Carolina, Charleston, USA. stanitsc@musc.edu
Insights
Black children achieve independent ambulation earlier than white children. This large-scale study found race to be the only significant predictor of walking age, impacting early childhood development.
Area of Science:
- Pediatric Epidemiology
- Developmental Pediatrics
- Child Development
Background:
- Standard pediatric developmental scales exist, but large-scale data on independent ambulation onset is lacking.
- Popular belief suggests girls walk earlier than boys, yet empirical evidence from extensive studies is absent.
Purpose of the Study:
- To prospectively evaluate the age of onset of independent ambulation in a large, diverse group of children.
- To determine the influence of gender, race, birth order, and socioeconomic status on the age children begin walking independently.
Main Methods:
- A cohort of 986 children (575 male, 471 female) was prospectively evaluated.
- A multivariable analysis of covariance model was employed to analyze the data.
- Key variables examined included gender, race, income, and birth order.
Main Results:
- Race was the only statistically significant predictor of age at ambulation (p < 0.0001).
- Black children initiated independent ambulation at a younger average age (10.9 ± 2.1 months) compared to white children (11.6 ± 2.3 months).
- The included independent variables collectively explained only 2.5% of the variance in age at ambulation.
Conclusions:
- Race significantly influences the age of independent ambulation onset in children.
- Further research is needed to understand the factors contributing to racial differences in early motor development.
- The findings highlight the complexity of early childhood development and the limited predictive power of common demographic factors.
Abstract:
Despite the standard available pediatric developmental scales and popular lore that girls walk at an earlier age than boys, no large-scale evaluation of the age of onset of independent ambulation has been previously published. The purpose of this study was the prospective epidemiologic evaluation of a large heterogeneous group of normal children to determine the effect of gender, race, birth order, and socioeconomic status on the age of onset of independent ambulation. The study cohort consisted of 986 children (575 male, 471 female). A multivariable analysis of covariance model was used to examine the effects of race, gender, income, and birth order on age at ambulation. After controlling for the other variables in the model, race was the only statistically significant predictor of age at ambulation (p < 0.0001), with black children walking at a younger age (10.9 +/- 2.1 months) than white children (11.6 +/- 2.3 months). Overall, the independent variables included in the model were only able to explain 2.5% of the variance of age at ambulation.
