Midfoot passive stiffness affects foot and ankle kinematics and kinetics during the propulsive phase of walking

JOURNAL OF BIOMECHANICS

卷:119

Article

Magalhaes, Fabricio Anicio¹  Fonseca, Sergio Teixeira¹  Araujo, Vanessa Lara¹  Trede, Renato Guilherme²  Oliveira, Lilian Marques¹  Miranda E Castor, Camila Gomes¹  Pinto, Rafael Zambelli¹  Souza, Thales Rezende¹ 

[1] Univ Fed Minas Gerais, Sch Phys Educ Phys Therapy & Occupat Therapy, Grad Program Rehabil Sci, Belo Horizonte, MG, Brazil

[2] Univ Fed Vales Jequitinhonha & Mucuri, Dept Phys Therapy, Grad Program Rehabil & Funct Performance, Diamantina, MG, Brazil

关键词: Midfoot;    Foot arch;    Walking;    Gait;    Pronation;    Supination;   

DOI  :  10.1016/j.jbiomech.2021.110328

来源: Elsevier

【 摘 要 】

The midfoot joint complex (MFJC) is related to the mechanics and efficiency of the walking propulsive phase and low midfoot passive stiffness may require compensatory foot and ankle joint moments to avoid excessive pronation and inefficient propulsion. This study aimed to investigate the kinematics and kinetics of the MFJC and ankle during the propulsive phase of walking in subjects with larger and smaller midfoot passive stiffness. MFJC passive stiffness of 20 healthy adult participants, and the kinematics and kinetics of the MFJC (forefoot-rearfoot) and ankle (rearfoot-shank) during the stance phase of walking were measured. The participants were divided equally into two groups according to the MFJC passive stiffness. Ranges of motion (ROM) and mean joint moments were computed for the late stance. Independent t-tests (alpha = 0.05) revealed that subjects with lower midfoot passive stiffness showed an increased MFJC sagittal ROM (flattened longitudinal arch) (p = 0.002), increased ankle frontal ROM (more everted positions) (p = 0.002), increased MFJC frontal ROM (more inverted positions) (p = 0.019), as well as a tendency for larger ankle sagittal ROM (p = 0.056). They also showed increased MFJC (p = 0.021) and ankle (p = 0.018) moments in the sagittal plane, increased MFJC moment in the frontal plane (p = 0.047) and a tendency for a predominant ankle moment in the frontal (p = 0.058). Foot and ankle joint moments are possible strategies to reduce pronation and improve propulsion, but not sufficient to prevent the altered kinematics related to low midfoot stiffness. Therefore, midfoot passive stiffness is critical for foot and ankle kinematics and kinetics during walking propulsive phase and is a potential target of interventions. (C) 2021 Elsevier Ltd. All rights reserved.

【 授权许可】

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