Does footwear type impact the number of steps required to reach gait steady state? An innovative look at the impact of foot orthoses on gait initiation

Bijan Najafi, Daniel Miller, Beth D. Jarrett, James S. Wrobel

Research output: Contribution to journalArticle

32 Scopus citations

Abstract

Many studies have attempted to better elucidate the effect of foot orthoses on gait dynamics. To our knowledge, most previous studies exclude the first few steps of gait and begin analysis at steady state walking. These unanalyzed steps of gait may contain important information about the dynamic and complex processes required to achieve equilibrium for a given gait velocity. The purpose of this study was to quantify gait initiation and determine how many steps were required to reach steady state walking under three footwear conditions: barefoot, habitual shoes, and habitual shoes with a prefabricated foot orthoses. Fifteen healthy subjects walked 50. m at habitual speed in each condition. Wearing habitual shoes with the prefabricated orthoses enabled subjects to reach steady state walking in fewer steps (3.5 steps ± 2.0) compared to the barefoot condition (5.2 steps ± 3.0; p=0.02) as well as compared to the habitual shoes condition (4.7 steps ± 1.6; p=0.05). Interestingly, the subjects' dynamic medial-lateral balance was significantly improved (22%, p<0.05) by using foot orthoses compared to other footwear conditions. These findings suggest that foot orthoses may help individuals reach steady state more quickly and with a better dynamic balance in the medial-lateral direction, independent of foot type. The findings of this pilot study may open new avenues for objectively assessing the impact of prescription footwear on dynamic balance and spatio-temporal parameters of gait. Further work to better assess the impact of foot orthoses on gait initiation in patients suffering from gait and instability pathologies may be warranted.

Original languageEnglish (US)
Pages (from-to)29-33
Number of pages5
JournalGait and Posture
Volume32
Issue number1
DOIs
StatePublished - May 2010

Keywords

  • Gait
  • Orthotic devices
  • Outcome assessment (health care)

ASJC Scopus subject areas

  • Biophysics
  • Orthopedics and Sports Medicine
  • Rehabilitation

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