Transverse tendon stiffness is reduced in people with Achilles tendinopathy: A cross-sectional study

Evan Finnamore, Charlotte Waugh, Lyndal Solomons, Michael Ryan, Christopher West and Alexander Scott

PLOS ONE, 2019, vol. 14, issue 2, 1-12

Abstract: Objectives: The objective of the current cross-sectional study was to examine Achilles tendon transverse stiffness in a group of recreational runners with Achilles tendinopathy, in comparison to an asymptomatic group of runners with similar training history. We also aimed to determine the between-week intra-individual reliability of this measurement technique. Design: Cross-sectional cohort study. Methods: A hand-held dynamometer was used to assess the transverse stiffness of the Achilles tendon (AT) in twenty-five recreational runners. In ten people with midportion Achilles tendinopathy (5 men, 5 women), measurements were taken directly over the most symptomatic location. In 15 people who were free of AT symptoms (7 men, 8 women), measurements were taken at an equivalent location on the tendon. Participants returned after one week to determine measurement reliability (intra-class correlation coefficient/ICC and minimum detectable change/MDC95). We also collected information about people’s tendon loading activities, tendon thickness (ultrasound mesaurement), and symptoms (Victorian Institute of Sports Assessment–Achilles / VISA-A score). Results: The AT transverse stiffness was lower in people with Achilles tendinopathy (777 N/m ± 86) compared to those who were asymptomatic (873 N/m ± 72) (p

Date: 2019
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0211863

DOI: 10.1371/journal.pone.0211863

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