Early emergence of temporal co-ordination of lower limb segments elevation angles in human locomotion

Guy Cheron, Ana Bengoetxea, Ethel Bouillot, Francesco Lacquaniti, Bernard Dan

Research output: Contribution to journalArticlepeer-review

Abstract

We analysed the co-ordination of the elevation angles of the thigh (αt), shank (αs) and foot (αf) during walking in 19 adults and 21 children (aged 11-144 months), including the very first unsupported steps in four. Cross-correlation functions (CCF) maturation of pairs of elevation angles was quantified by a global error parameter (Et(CCF)) reflecting the difference between particular CCF value of toddlers and mean adult value (Ea(CCF)). During the very first step, Et(CCF) could be five times higher than Ea(CCF). With walking experience, Et(CCF) for both αts and αsf pairs evolved following a biexponential profile, with a fast time constant below 6 months. Adult-like CCF parameters were reached earlier for αsf than αts, indicating disto-proximal maturation of the temporal co-ordination of the lower limb segments in human locomotion.

Original languageEnglish
Pages (from-to)123-127
Number of pages5
JournalNeuroscience Letters
Volume308
Issue number2
DOIs
Publication statusPublished - Aug 3 2001

Keywords

  • Development
  • Locomotion
  • Lower limb
  • Temporal co-ordination

ASJC Scopus subject areas

  • Neuroscience(all)

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