The effect of foot structure on 1st metatarsophalangeal joint flexibility and hallucal loading

Smita Rao, Jinsup Song, Andrew Kraszewski, Sherry Backus, Scott J. Ellis, Jonathan T Deland Md, Howard J. Hillstrom

Research output: Contribution to journalArticle

Abstract

The purpose of our study was to examine 1st metatarsophalangeal (MTP) joint motion and flexibility and plantar loads in individuals with high, normal and low arch foot structures. Asymptomatic individuals (n=61), with high, normal and low arches participated in this study. Foot structure was quantified using malleolar valgus index (MVI) and arch height index (AHI). First MTP joint flexibility was measured using a specially constructed jig. Peak pressure under the hallux, 1st and 2nd metatarsals during walking was assessed using a pedobarograph. A one-way ANOVA with Bonferroni-adjusted post hoc comparisons was used to assess between-group differences in MVI, AHI, early and late 1st MTP joint flexibility in sitting and standing, peak dorsiflexion (DF), and peak pressure under the hallux, 1st and 2nd metatarsals. Stepwise linear regression was used to identify predictors of hallucal loading. Significant between-group differences were found in MVI (F2,56=15.4, p<0.01), 1st MTP late flexibility in sitting (F2,57=3.7, p=0.03), and standing (F2,57=3.7, p=0.03). Post hoc comparisons demonstrated that 1st MTP late flexibility in sitting was significantly higher in individuals with low arch compared to high arch structure, and that 1st MTP late flexibility in standing was significantly higher in individuals with low arch compared to normal arch structure. Stepwise regression analysis indicated that MVI and 1st MTP joint early flexibility in sitting explain about 20% of the variance in hallucal peak pressure. Our results provide objective evidence indicating that individuals with low arches show increased 1st MTP joint late flexibility compared to individuals with normal arch structure, and that hindfoot alignment and 1st MTP joint flexibility affect hallucal loading.

Original languageEnglish (US)
Pages (from-to)131-137
Number of pages7
JournalGait and Posture
Volume34
Issue number1
DOIs
StatePublished - May 2011

Fingerprint

Metatarsophalangeal Joint
Articular Range of Motion
Foot
Hallux
Metatarsal Bones
Pressure
Walking
Linear Models
Analysis of Variance
Regression Analysis

Keywords

  • Biomechanics
  • Foot structure
  • Hallux
  • Metatarsophalangeal
  • Pressure

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Rehabilitation
  • Biophysics

Cite this

Rao, S., Song, J., Kraszewski, A., Backus, S., Ellis, S. J., Md, J. T. D., & Hillstrom, H. J. (2011). The effect of foot structure on 1st metatarsophalangeal joint flexibility and hallucal loading. Gait and Posture, 34(1), 131-137. https://doi.org/10.1016/j.gaitpost.2011.02.028

The effect of foot structure on 1st metatarsophalangeal joint flexibility and hallucal loading. / Rao, Smita; Song, Jinsup; Kraszewski, Andrew; Backus, Sherry; Ellis, Scott J.; Md, Jonathan T Deland; Hillstrom, Howard J.

In: Gait and Posture, Vol. 34, No. 1, 05.2011, p. 131-137.

Research output: Contribution to journalArticle

Rao, S, Song, J, Kraszewski, A, Backus, S, Ellis, SJ, Md, JTD & Hillstrom, HJ 2011, 'The effect of foot structure on 1st metatarsophalangeal joint flexibility and hallucal loading', Gait and Posture, vol. 34, no. 1, pp. 131-137. https://doi.org/10.1016/j.gaitpost.2011.02.028
Rao, Smita ; Song, Jinsup ; Kraszewski, Andrew ; Backus, Sherry ; Ellis, Scott J. ; Md, Jonathan T Deland ; Hillstrom, Howard J. / The effect of foot structure on 1st metatarsophalangeal joint flexibility and hallucal loading. In: Gait and Posture. 2011 ; Vol. 34, No. 1. pp. 131-137.
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