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Erschienen in: European Journal of Applied Physiology 3/2020

14.02.2020 | Original Article

Ultrasound speckle tracking of Achilles tendon in individuals with unilateral tendinopathy: a pilot study

verfasst von: Christian Couppé, René B. Svensson, Christian Orhammer Josefsen, Esben Kjeldgaard, S. Peter Magnusson

Erschienen in: European Journal of Applied Physiology | Ausgabe 3/2020

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Abstract

Purpose

Differential displacement between tendon layers has been shown to occur within the healthy Achilles tendon, and changes of this mechanism have been proposed to result in shear forces, which potentially could lead to tendinopathy. The magnitude of displacement between the tendon layers in tendinopathy is unknown. The purpose of this study was to investigate Achilles tendon layer displacement in individuals suffering from unilateral tendinopathy compared with the asymptomatic contralateral side.

Methods

Ten participants (9 men and 1 woman 45 ± 10 years, BMI: 28 ± 5) with unilateral Achilles tendinopathy were included. Intra-tendinous motion was assessed using ultrasonography during dynamic unilateral heel rises in standing and seated position. Speckle displacement was determined using a cross-correlation algorithm, in four independent rows, representing superficial and deep tendon layers.

Results

The most superficial layer displaced less than the deepest in all condition, except standing for the tendinopathic leg. There was a strong tendency (p = 0.054) for the displacement difference being reduced in the tendinopathic tendon (Tendinopathic side: 0.52 ± 0.16 mm vs. asymptomatic contralateral side: 1.02 ± 0.18 mm).

Conclusion

These novel data suggest that the presence of tendinopathy diminishes intra-tendinous sliding in the Achilles tendon.
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Metadaten
Titel
Ultrasound speckle tracking of Achilles tendon in individuals with unilateral tendinopathy: a pilot study
verfasst von
Christian Couppé
René B. Svensson
Christian Orhammer Josefsen
Esben Kjeldgaard
S. Peter Magnusson
Publikationsdatum
14.02.2020
Verlag
Springer Berlin Heidelberg
Erschienen in
European Journal of Applied Physiology / Ausgabe 3/2020
Print ISSN: 1439-6319
Elektronische ISSN: 1439-6327
DOI
https://doi.org/10.1007/s00421-020-04317-5

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