Interfascicular matrix-mediated transverse deformation and sliding of discontinuous tendon subcomponents control the viscoelasticity and failure of tendons

Obuchowicz, Rafał; Ekiert, Martyna; Kohut, Piotr; Holak, Krzysztof; Ambroziński, Łukasz; Tomaszewski, Krzysztof A.; Uhl, Tadeusz; Młyniec, Andrzej

doi:10.1016/j.jmbbm.2019.05.027

Cited by 18 publications

(16 citation statements)

References 55 publications

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“…This greater extensibility is provided by the IFM, which exhibits low stiffness behaviour in the SDFT, allowing sliding and recoil between fascicles 29,41 . Recent work demonstrates similar capability for interfascicular sliding in the human Achilles tendon, with the presence of discontinuities within the tendon observed by ultrasound indicating a complex strain environment within the IFM 46 . The IFM in energy‐storing tendons also exhibit greater ability to resist and recover from cyclic loading, with less energy loss (hysteresis) and stress relaxation compared with the IFM in positional tendons, both in horses and humans, 29,47 as well as increased fatigue resistance in the SDFT compared with the CDET 48 .…”

Section: Specialisation At the Macroscalementioning

confidence: 86%

“…with the presence of discontinuities within the tendon observed by ultrasound indicating a complex strain environment within the IFM. 46 The IFM in energy-storing tendons also exhibit greater ability to resist and recover from cyclic loading, with less energy loss (hysteresis) and stress relaxation compared with the IFM in positional tendons, both in horses and humans, 29,47 as well as increased fatigue resistance in the SDFT compared with the CDET. 48 This behaviour is likely provided by the specialised composition of the IFM, which is rich in lubricin and elastin.…”

Section: S Pecialisati On At the M Acrosc A Lementioning

confidence: 99%

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Microdamage in the equine superficial digital flexor tendon

O’Brien

Marr

Thorpe

2020

Equine Veterinary Journal

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Section: Specialisation At the Macroscalementioning

confidence: 86%

Section: S Pecialisati On At the M Acrosc A Lementioning

confidence: 99%

Microdamage in the equine superficial digital flexor tendon

O’Brien

Marr

Thorpe

2020

Equine Veterinary Journal

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“…Due to the properties of human Achilles tendons, which are characterized by anisotropy and inhomogeneity, the application of non-contact measurement techniques seems to be the best solution. The demonstrated studies are a continuation of the research related to AT modeling and biomechanical parameter investigation (Młyniec et al, 2015a,b;Pękala et al, 2017;Obuchowicz et al, 2019).…”

Section: Introductionmentioning

confidence: 81%

The application of digital image correlation to investigate the heterogeneity of Achilles tendon deformation and determine its material parameters

Kohut¹,

Holak²,

Ekiert³

et al. 2020

Journal of Theoretical and Applied Mechanics

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The challenge for researchers is to develop measurement techniques that can deal with biological specimens (e.g. the human Achilles tendon) characterized by high deformation during examination. The relevant quantity which has to be investigated in laboratory experiments is the deformation or strain field of the specimen subjected to a given load. In experimental mechanics, the most remarkable technique used for strain field computation is the Digital Image Correlation (DIC) method. In the paper, the DIC method is employed to study biomaterial parameters of human Achilles tendons (AT) subjected to tensile uniaxial loadings. The application of DIC allows the heterogeneity of tendon deformation to be taken into consideration. Young's modulus of AT based on the strain field obtained from a vision-based measurement is estimated and the results are discussed. A map of Young's modulus (YM) is demonstrated as well.

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“…Therefore, the exact geometry of the sample allowed us to calculate the strength properties of biological samples and to estimate the parameters of the material models, which are crucial in cases of more sophisticated models. Commonly used techniques for measuring the geometry of tissue samples include the use of calipers [46,47], laser micrometers [48], or vision-based methods (camera snapshots, photos) [29]. Although the caliper method seems to be the simplest solution, it is largely based on operator decisions and the arbitrary selection of the first moment of contact between the instrument and tissue sample.…”

Section: Tissue Samples: Comparison Between the Vision-based Methods Amentioning

confidence: 99%

“…Three-dimensional DIC can be useful in the measurement of both external surface deformation of samples and deformation of samples in the bulk. Obuchowicz et al [29] used the DIC method to analyze a series of photographs of the specimen surface, as well as a series of ultrasound images acquired in a specified time interval during tissue relaxation. It is not necessary to apply speckle patterns when analyzing ultrasound images with DIC, which is an advantage of this technique.…”

Section: Introductionmentioning

confidence: 99%

A 3D Scanning System for Inverse Analysis of Moist Biological Samples: Design and Validation Using Tendon Fascicle Bundles

Dąbrowska

Ekiert

Wójcik

et al. 2020

Sensors

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In this article, we present the design and validation of a non-contact scanning system for the development of a three-dimensional (3D) model of moist biological samples. Due to the irregular shapes and low stiffness of soft tissue samples, the use of a non-contact, reliable geometry scanning system with good accuracy and repeatability is required. We propose a reliable 3D scanning system consisting of a blue light profile sensor, stationary and rotating frames with stepper motors, gears and a five-phase stepping motor unit, single-axis robot, control system, and replaceable sample grips, which once mounted onto the sample, are used for both scanning and mechanical tests. The proposed system was validated by comparison of the cross-sectional areas calculated based on 3D models, digital caliper, and vision-based methods. Validation was done on regularly-shaped samples, a wooden twig, as well as tendon fascicle bundles. The 3D profiles were used for the development of the 3D computational model of the sample, including surface concavities. Our system allowed for 3D model development of samples with a relative error of less than 1.2% and high repeatability in approximately three minutes. This was crucial for the extraction of the mechanical properties and subsequent inverse analysis, enabling the calibration of complex material models.

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Interfascicular matrix-mediated transverse deformation and sliding of discontinuous tendon subcomponents control the viscoelasticity and failure of tendons

Cited by 18 publications

References 55 publications

Microdamage in the equine superficial digital flexor tendon

Microdamage in the equine superficial digital flexor tendon

The application of digital image correlation to investigate the heterogeneity of Achilles tendon deformation and determine its material parameters

A 3D Scanning System for Inverse Analysis of Moist Biological Samples: Design and Validation Using Tendon Fascicle Bundles

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