Foot Kinematics of Impact Absorption and Force Exertion During Depth-Jump Using a Multi-segment Foot Model

Sekiguchi, Yuka; Kokubun, Takanori; Hanawa, Hiroki; Shono, Hitomi; Tsuruta, Ayumi; Kanemura, Naohiko

doi:10.1007/s40846-020-00560-5

Cited by 5 publications

(2 citation statements)

References 20 publications

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“…The multi-segment foot model, such as the Oxford foot model (Carson et al, 2001;Wright et al, 2011;Li et al, 2022) and the Leardini foot model (Leardini et al, 2007;Deschamps et al, 2012;Watari et al, 2021), was developed to replace the conventional single-segment foot model for detailed in vivo evaluation of the foot segment kinematics during movements. Its clinical utility has been highly appreciated following assertions by several studies that foot kinematics are affected by age (Arnold et al, 2014;Deschamps et al, 2017), sex (Takabayashi et al, 2018;Sekiguchi et al, 2020), and deformities such as flat foot (Kim et al, 2020) or hallux valgus (Shin et al, 2019). However, detailed kinetics of the human foot during dynamic movements have not been similarly investigated, mainly due to the unavailability of a detailed foot model to estimate internal forces and moments within the foot segments.…”

Section: Introductionmentioning

confidence: 99%

Novel Multi-Segment Foot Model Incorporating Plantar Aponeurosis for Detailed Kinematic and Kinetic Analyses of the Foot With Application to Gait Studies

Matsumoto

Ogihara

Hanawa

et al. 2022

Front. Bioeng. Biotechnol.

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Kinetic multi-segment foot models have been proposed to evaluate the forces and moments generated in the foot during walking based on inverse dynamics calculations. However, these models did not consider the plantar aponeurosis (PA) despite its potential importance in generation of the ground reaction forces and storage and release of mechanical energy. This study aimed to develop a novel multi-segment foot model incorporating the PA to better elucidate foot kinetics. The foot model comprised three segments: the phalanx, forefoot, and hindfoot. The PA was modeled using five linear springs connecting the origins and the insertions via intermediate points. To demonstrate the efficacy of the foot model, an inverse dynamic analysis of human gait was performed and how the inclusion of the PA model altered the estimated joint moments was examined. Ten healthy men walked along a walkway with two force plates placed in series close together. The attempts in which the participant placed his fore- and hindfoot on the front and rear force plates, respectively, were selected for inverse dynamic analysis. The stiffness and the natural length of each PA spring remain largely uncertain. Therefore, a sensitivity analysis was conducted to evaluate how the estimated joint moments were altered by the changes in the two parameters within a range reported by previous studies. The present model incorporating the PA predicted that 13%–45% of plantarflexion in the metatarsophalangeal (MTP) joint and 8%–29% of plantarflexion in the midtarsal joints were generated by the PA at the time of push-off during walking. The midtarsal joint generated positive work, whereas the MTP joint generated negative work in the late stance phase. The positive and negative work done by the two joints decreased, indicating that the PA contributed towards transfer of the energy absorbed at the MTP joint to generate positive work at the midtarsal joint during walking. Although validation is limited due to the difficulty associated with direct measurement of the PA force in vivo, the proposed novel foot model may serve as a useful tool to clarify the function and mechanical effects of the PA and the foot during dynamic movements.

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Section: Introductionmentioning

confidence: 99%

Novel Multi-Segment Foot Model Incorporating Plantar Aponeurosis for Detailed Kinematic and Kinetic Analyses of the Foot With Application to Gait Studies

Matsumoto

Ogihara

Hanawa

et al. 2022

Front. Bioeng. Biotechnol.

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“…When the load of knee joint was three times of body weight, the maximum stress of customized implant was 390 MPa, while the maximum stress of original implant was 565.1 MPa. Sekiguchi et al [14] researched foot kinematics of the jumping process. Pejhan et al [15] focused on the contact characteristics of knee joint implants, where the results showed that the contact area of the customized implant was similar to that of the healthy knee joint in the high flexion state.…”

Section: Introductionmentioning

confidence: 99%

Biomechanical Strengthening Design for Limb Articulation Based on Reconstructed Skeleton Kinesthetics

et al. 2021

J. Med. Biol. Eng.

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Purpose For the purpose of arthrosis structure strengthening, the reconstructed bone and cartilage are utilized to carry out holistic finite element analysis (FEA), as a whole rather than separated components in order to evaluate the biomechanical performance by convergent validation. This paper presents a biomechanical strengthening design method for human limb articulation based on reconstructed skeleton kinesthetics (RSK). Methods The 3D reconstruction of manifold structure including hard bone, medullary cavity and cartilage can be sequentially and progressively implemented from heterogeneous medical images, such as computed tomography (CT) and magnetic resonance imaging (MRI). The sliced images can be recognized to extract boundary contour using deep learning-based intelligent edge detection and classification method. Once the 3D skeleton models are generated, the anatomical coordinate systems, together with joint coordinate system can be created therefrom. Based on Hertz's contact theory, the methodology of human articulation kinesthetics can be employed to evaluate the flexion mobility. ResultsThe equivalent stress, maximum principal stress and material strain energy under diverse loadings can be reckoned as more accurate results via Neo-Hookean hyperelastic model to evaluate biomechanical effect. As a consequence, the limb articulation can be optimized with better biodynamics performance, resulting from better arthrosis structure and its fabrication process thereafter via 3D printing (3DP) or additive manufacturing (AM). ConclusionThe proposed RSK method can generate individual 3D skeleton articulation in accordance with medical images. Moreover, the RSK can forwardly accomplish biomechanical strengthening design from rehabilitation demands to the kinesthetics performance.

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Evidence-based Customized Ankle-Foot Orthosis with Energy Storage

et al. 2021

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Foot Kinematics of Impact Absorption and Force Exertion During Depth-Jump Using a Multi-segment Foot Model

Cited by 5 publications

References 20 publications

Novel Multi-Segment Foot Model Incorporating Plantar Aponeurosis for Detailed Kinematic and Kinetic Analyses of the Foot With Application to Gait Studies

Novel Multi-Segment Foot Model Incorporating Plantar Aponeurosis for Detailed Kinematic and Kinetic Analyses of the Foot With Application to Gait Studies

Biomechanical Strengthening Design for Limb Articulation Based on Reconstructed Skeleton Kinesthetics

Evidence-based Customized Ankle-Foot Orthosis with Energy Storage

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