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Updated: Aug 10, 2026

In Vivo Canine Muscle Function Assay
Published on: April 5, 2011
Sprinting and intoeing
1Children's Hospital and Medical Center, Seattle, WA 98105, USA.
Abstract:
The relationship between sprinting ability and intoeing was explored in a single blinded controlled study performed on 100 high school students. Rotational profiles and sprinting foot-progression angles were compared in 50 high school sprinters and 50 high school controls. Sprinters had a significantly lower (p < 0.05) thigh-foot angle than did controls. The mean thigh-foot angle for sprinters and controls was +3 and +10 degrees, respectively. Significantly more sprinters intoed during sprinting than controls (p < 0.05). Neither walking foot-progression angle nor hip rotation appears to be a factor in sprinting. The findings of this study suggest that low normal thigh-foot angles and sprinting intoed may correlate with sprinting ability. This information may reduce anxiety of parents of children with medial tibial torsion.
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