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June 13, 2026BMC Pregnancy and ChildbirthOpen Access

Pregnancy-related transverse arch deformation: a subject-specific finite element analysis of the contributions of body weight and tissue stiffness

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Authors

XLXin LiZLZhenghui LuYFYufei Fang

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Overview

Finite element analysis quantifies how body weight and tissue stiffness affect transverse arch in pregnancy, implying distinct mechanical effects.

Key Points

  • To quantify the impacts of body weight and tissue stiffness on transverse foot arch geometry during pregnancy.
  • Used a CT-based subject-specific finite element model to analyze 16 conditions across trimesters.
  • Performed a factorial analysis to evaluate effects of body weight and tissue stiffness.
  • Validated model predictions against plantar pressure measurements.
  • Greatest flattening of the arch predicted in the second trimester with increased loading.
  • Higher increases in body weight correlated with transverse widening of the midfoot.
  • Reduced tissue stiffness primarily affected arch height and curvature, indicating largely independent mechanical effects.

Cite This Study

Li et al. (2026) studied this question.

synapsesocial.com/papers/6a2cf34dfaef96ed7f055cddhttps://doi.org/10.1186/s12884-026-09438-x
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Foot Shape Changes During Pregnancy and Postpartum Are Associated With Patient Pain and Function2026
  2. 2Biomechanical Correlates between Foot Arch Morphology and Sports Injury Risks: a Multifactorial Analysis of 1078 University Students2025
  3. 3Changes in Foot Biomechanics during Pregnancy and Postpartum: Scoping Review2024 · 4 citations
  4. 4Quantification of the Mechanical Response of the Plantar Fascia to Changes in Rearfoot Position2026
  5. 5Uterus and cervix anatomical changes and cervix stiffness evolution throughout pregnancy2024 · 3 citations