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--- a +++ b/jap/node1.html @@ -0,0 +1,37 @@ +<HTML> +<HEAD> +<TITLE>Abstract</TITLE> +<LINK REL=STYLESHEET HREF="gait-reprint.css"> +</HEAD> +<BODY LANG="EN" bgcolor="white"> +<A NAME="tex2html12" HREF="node2.html"><IMG WIDTH=37 HEIGHT=24 ALIGN=BOTTOM ALT="next" SRC="/icons/latex2html/next_motif.png"></A> <A NAME="tex2html10" HREF="gait-reprint.html"><IMG WIDTH=26 HEIGHT=24 ALIGN=BOTTOM ALT="up" SRC="/icons/latex2html/up_motif.png"></A> <A NAME="tex2html4" HREF="gait-reprint.html"><IMG WIDTH=63 HEIGHT=24 ALIGN=BOTTOM ALT="previous" SRC="/icons/latex2html/previous_motif.png"></A> <BR> +<B> Next:</B> <A NAME="tex2html13" HREF="node2.html">Introduction</A> +<B>Up:</B> <A NAME="tex2html11" HREF="gait-reprint.html">Title Page</A> +<B> Previous:</B> <A NAME="tex2html5" HREF="gait-reprint.html">Title Page</A> +<BR> <P> +<H1><A NAME="SECTION00010000000000000000">Abstract</A></H1> +<P> +In very young children, immature control of posture and gait results in +unsteady locomotion. By about three years of age, gait appears +relatively mature; however, it is unknown whether the +dynamics of walking change beyond this age. Because stride dynamics +depend on neural control, we hypothesized that gait +dynamics would continue to develop beyond age three. To test this +hypothesis, we measured the gait cycle duration on a stride-by-stride +basis in fifty healthy children (25 girls) ages 3 to 14 years old. Measures of +stride-to-stride variability were significantly larger both in the 3 +and 4 year olds compared to the 6 and 7 year olds and in the 6 and 7 +year olds compared to the 11 to 14 year olds. Measures of the +temporal organization of gait also revealed significant age-dependent +changes. The effects of age persisted even after adjusting for +height. These findings indicate that mature stride dynamics may not +be completely developed even in healthy 7 year old children and that +different aspects of stride dynamics mature at different ages. +<P> +<P><P> +<P> +Key Words: age, walking, spectral analysis, fractal analysis +<P> +<BR> <HR> +</BODY> +</HTML>