Ultrasound strain mapping of Achilles tendon compressive strain patterns during dorsiflexion
نویسندگان
چکیده
منابع مشابه
Understanding Achilles Tendinopathy and Tendon Rehabilitation through the Achilles Tendon Diametral Strain Response to Eccentric Exercise
We have previously demonstrated that eccentric exercise results in an immediate decrease in tendon thickness in healthy young adults [3]. Based on in vitro evidence, it was proposed that the marked diametral strain response (≈ 20%) observed in vivo primarily reflected the radial extrusion of fluid from the tendon [4, 5]. Such convective fluid movement likely plays a vital role in tendon homeost...
متن کاملDifferential strain patterns of the human Achilles tendon determined in vivo with freehand three-dimensional ultrasound imaging.
The human Achilles tendon (AT) has often been considered to act as a single elastic structure in series with the muscles of the triceps surae. As such it has been commonly modelled as a Hookean spring of uniform stiffness. However, the free AT and the proximal AT have distinctly different structures that lend themselves to different elastic properties. This study aimed to use three-dimensional ...
متن کاملEvaluation of tissue displacement and regional strain in the Achilles tendon using quantitative high-frequency ultrasound
The Achilles tendon has a unique structure-function relationship thanks to its innate hierarchical architecture in combination with the rotational anatomy of the sub-tendons from the triceps surae muscles. Previous research has provided valuable insight in global Achilles tendon mechanics, but limitations with the technique used remain. Furthermore, given the global approach evaluating muscle-t...
متن کاملAchilles Tendon Strain: Research Findings with Clinical Implications
Tendons are susceptible to injury, either due to major overload or repeated sublinical injury. Individual fibres can withstand 2-5% strain before undergoing plastic deformation & permanent elongation. Tendons as a whole can withstand up to 20-50% strain, while still demonstrating a linear response and return to normal length. Under normal usage, tendons are strained only to 25-33% of maximum st...
متن کاملStrain and slackness of achilles tendon during passive joint mobilization via imaging ultrasonography
Background: In vivo study of the mechanical behavior of tendons may bring advances in evaluating the impact of intervention programs for fl exibility and strength, in clinical practice and sports. Objective: The aim of this study was to quantify the relative strain and slackness of achilles tendons during passive mobilization, for four ankle joint angles and two knee angles. Methods: The displa...
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ژورنال
عنوان ژورنال: Journal of Biomechanics
سال: 2016
ISSN: 0021-9290
DOI: 10.1016/j.jbiomech.2015.11.008