Stress distribution of the foot during mid-stance to push-off in barefoot gait: a 3-D finite element analysis

Chen, Weng-Pin; Tang, Feng‐Yao; Ju, Chia-Wei

doi:10.1016/s0268-0033(01)00047-x

Cited by 122 publications

(98 citation statements)

References 16 publications

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“…In this study, the foot bones, cartilages and joints were assumed to be homogeneous, isotropic and linearly elastic [12]. Young's modulus and Poisson's ratio were 10 GPa and 0.34, respectively [1]. …”

Section: Finite Element Modelmentioning

confidence: 99%

“…Furthermore, the reconstructions using ilium, ÿbula and scapula were evaluated. Young's moduli being equal to 14.8 [15], 11.46 [16] and 10 GPa [1] for the ilium, ÿbula and scapula, respectively; and Poisson's ratios 0.28 [15], 0.2 [16] and 0.34 [1], correspondingly. The size of bone block was determined based on the measurement of the corresponding site of the healthy skeleton specimen and conformed to the anatomic data.…”

Section: Finite Element Analysismentioning

confidence: 99%

“…Human foot is a complex mechanism and plays an important role in the biomechanical function of the lower limb [1,2]. In view of anatomic structure, the foot consists of four regions, i.e.…”

Section: Introductionmentioning

confidence: 99%

“…At present, ÿnite element analysis is regarded as a useful tool of biomechanical research. To the best of our knowledge, the substantial data of the metatarsal deÿcit are hardly available, although ÿnite element models of foot were performed in literatures [1,2,[11][12][13][14]. The purpose of this study is to assess the mechanical in uences of the metatarsal deÿcits and their reconstructions using ilium, scapula and ÿbula based on a three-dimensional (3-D) ÿnite element model.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Finite element analysis of metatarsal deficit and reconstruction using ilium, fibula and scapula

Pan

Jiang

Wang

et al. 2006

Commun. Numer. Meth. Engng.

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SUMMARYObjective: To compare the mechanical e ects of metatarsal deÿcit and its reconstruction with ilium, ÿbula and scapula on foot function using three-dimensional (3-D) ÿnite element analysis.Methods: Deÿcits of the ÿrst to the third metatarsal bone and the fourth to the ÿfth metatarsal bone, and their reconstructions with ilium, ÿbula and scapula, respectively, were simulated by a 3-D foot model. The peak displacement and the peak stress were deÿned as indexes to estimate foot function.Results: It was found that foot function was a ected primarily by the deÿcit of the ÿrst to the third metatarsal bone. In comparison with the intact healthy foot, the peak displacement and the peak stress of the whole deÿcit of the ÿrst to the third metatarsal bone increased by 215 and 212%, respectively, while those of the half deÿcit increased by 165 and 205%, respectively. For the whole and the half deÿcit of the fourth to the ÿfth metatarsal bone, the values of the two indexes increased by 144 and 109%, and 137 and 103%, respectively. After reconstruction, the results showed that the stress-concentrated regions dispersed relatively, especially in heel, metatarsal heads and reconstructive bone block. The maximum displacement and stress of the deÿcit rebuilt by ilium were the minimums in comparison with the reconstructions with ÿbula and scapula.Conclusion: The reconstructed multi-metatarsal deÿcit can be analysed by ÿnite element method. The ilium was the preferred reparation material for the bone deÿcit.

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Section: Finite Element Modelmentioning

confidence: 99%

Section: Finite Element Analysismentioning

confidence: 99%

“…Human foot is a complex mechanism and plays an important role in the biomechanical function of the lower limb [1,2]. In view of anatomic structure, the foot consists of four regions, i.e.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Finite element analysis of metatarsal deficit and reconstruction using ilium, fibula and scapula

Pan

Jiang

Wang

et al. 2006

Commun. Numer. Meth. Engng.

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“…(Chen, 2001) The use of anatomically accurate finite element (FEM) models of the human foot in research studies has increased rapidly in recent years. Some studies creates a 3D mathematical model using the reconstruction of the foot by MRI or CT (Cheung, 2005a;Cheung, 2005b;Camacho, 2002;Chen, 2001), or the foot scanning (Lochner, 2014;Telfer, 2010). Both methods (from MRI and CT) for developing patient-specific anatomical geometry are time consuming, expensive and impractical for use on a per-patient basis.…”

Section: Introductionmentioning

confidence: 99%

Exploitation of Stereophotogrammetric Measurement of a Foot in Analysis of Plantar Pressure Distribution

Pankova

Koudelka

Pavelka

et al. 2016

ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci.

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ABSTRACT:Stereophotogrammetry as a method for the surface scanning can be used to capture some properties of the human body parts. The objective of this study is to quantify the foot stress distribution in 3D during its quasi-static stand using a footprint into an imprinting material when knowing its mechanical properties. One foot of a female, having the mass of 65kg, was chosen for the FEM foot model construction. After obtaining her foot imprint to the dental imprinting material, its positive plaster cast was created, whose surface was possible to scan using stereophotogrammetry. The imprint surface digital model was prepared with the help of the Konica-Minolta Vivid 9i triangulation scanner. This procedure provides the measured object models in a high resolution. The resulting surface mesh of the foot imprint involved 9.600 nodes and 14.000 triangles, approximately, after reduction due to the FEM analysis. Simulation of foot imprint was solved as the 3D time dependent nonlinear mechanical problem in the ADINA software. The sum of vertical reactions calculated at the contact area nodes was 320.5 N, which corresponds to the mass of 32.67 kg. This value is in a good agreement with the subject half weight -the load of one foot during its quasi-static stand. The partial pressures resulting from this mathematical model match the real pressures on the interface of the foot and imprinting material quite closely. Principally, these simulations can be used to assess the contact pressures in practical cases, e.g., between a foot and its footwear.

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Earliest complete hominin fifth metatarsal—Implications for the evolution of the lateral column of the foot

Zipfel

DeSilva

Kidd

2009

American J Phys Anthropol

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StW 114/115, from Sterkfontein, South Africa, is the earliest complete hominin fifth metatarsal. Comparisons of StW 114/115 to modern humans, extant apes, and partial hominin metatarsals AL 333-13, AL 333-78, SKX 33380, OH 8, and KNM-ER 803f reveal a similar morphology in all six fossils consistent with habitual bipedality. Although StW 114/115 possesses some primitive characters, the proximal articular morphology and internal torsion of the head are very human-like, suggesting a stable lateral column and the likely presence of lateral longitudinal and transverse tarsal arches. We conclude that, at least in the lateral component of the foot of the StW 114/115 individual, the biomechanical pattern is very similar to that of modern humans. This, however, may not have been the case in the medial column of the foot, as a mosaic pattern of hominin foot evolution and function has been suggested. The results of this study may support the hypothesis of an increased calcaneo-cuboid stability having been an early evolutionary event in the history of terrestrial bipedalism.

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Stress distribution of the foot during mid-stance to push-off in barefoot gait: a 3-D finite element analysis

Cited by 122 publications

References 16 publications

Finite element analysis of metatarsal deficit and reconstruction using ilium, fibula and scapula

Finite element analysis of metatarsal deficit and reconstruction using ilium, fibula and scapula

Exploitation of Stereophotogrammetric Measurement of a Foot in Analysis of Plantar Pressure Distribution

Earliest complete hominin fifth metatarsal—Implications for the evolution of the lateral column of the foot

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