Objective assessment of stiffness in Achilles tendinopathy: a novel approach using the MyotonPRO
BMJ Publishing Group
MetadataDangos cofnod eitem llawn
Objectives The aim of this study was to establish quantitative values for asymptomatic and symptomatic Achilles tendons. Design Cohort study with a single (cross-sectional) time point of patients diagnosed with unilateral Achilles tendinopathy and an asymptomatic group with comparative homogeneity. Methods A sample of 50 participants: 25 diagnosed with symptomatic unilateral Achilles tendinopathy (AT group) and 25 with asymptomatic Achilles tendons (control group 2). The asymptomatic side of the AT group was used as a control (control group 1). Measurements at 2 cm intervals on the tendon from its insertion at the calcaneum up to the musculotendinous junction were taken non-weight bearing (NWB) and weight bearing (WB) using the MyotonPRO. Results There was a significant (p<0.005) decrease in natural oscillation frequency (F) at points 2, 3 and 4 of the AT group (NWB condition) and points 2 and 3 for the WB condition. There was a significant (p<0.005) increase in logarithmic decrement (D) at points 2 and 3 signifying a decrease in elasticity. Dynamic stiffness (S) was significantly (p<0.005) reduced in the AT group at points 2 and 3 WB and point 3 WB. There was no significant difference in creep (C) observed between the symptomatic and asymptomatic tendons. There was a significant (p<0.005) increase in mechanical stress relaxation time (R) at point 2 NWB. There was a correlation between body weight and gender on tendon mechanics, with the symptomatic tendons. No significant differences were observed between the control group 1 and control group 2. Conclusions The MyotonPRO measured decreased stiffness over a section of the tendon corresponding clinically with Achilles tendinopathy. This may have potential in identifying risk of injury and informing rehabilitation, however further extensive research is required to generate baseline data for specific population groups monitoring variables over time. Age, gender and body mass index appear to have some bearing on the mechanical properties of the tendon but mainly in the tendinopathy group.
BMJ Open Sport and Exercise Medicine;
Morgan, G.E., Martin, R., Williams, L., Pearce, O. and Morris, K. (2018) 'Objective assessment of stiffness in Achilles tendinopathy: a novel approach using the MyotonPRO', BMJ Open Sport & Exercise Medicine, 4(1), p.e000446. http://dx.doi.org/10.1136/bmjsem-2018-000446
Dynodwr Gwrthrych Digidol (DOI)http://dx.doi.org/10.1136/bmjsem-2018-000446
Article published in BMJ Open Sport & Exercise Medicine available open access at http://dx.doi.org/10.1136/bmjsem-2018-000446
Cardiff Metropolitan University (Grant ID: Cardiff Metropolian (Internal))
Yn dangos eitemau sy’n perthyn drwy deitl, awdur, pwnc a chrynodeb.
Lewis, Jane E. A.; Lipp, Allyson (Cochrane Collaboration / Wiley, 2013-01-31)Background Diabetes-related foot ulceration is a major contributor to morbidity in diabetes. Diabetic foot ulcers are partly a consequence of abnormal foot pressures and pressure relief is a widely used treatment for ...
Inter and intra-rated reliability of sport and exercise medicine consultants when using the modified ohberg score to assess neovascular changes in symptomatic achilles and patellar tendinopathy Watson, James (2016-07-01)Objective. A number of treatment modalities in the management of lower limb Tendinopathies target pathological para- or intra-tendinous neovascularisation in order to address the pain stimulus. Therefore, the ability to ...
Sport and exercise medicine consultants are reliable in assessing tendon neovascularity using ultrasound Doppler Watson, James; Barker-Davies, Robert; Bennett, Alexander; Fong, Daniel; Wheeler, Patrick; Lewis, Mark; Ranson, Craig (BMJ Publishing Group, 2018-02-07)Objective: Several lower limb tendinopathy treatment modalities involve identification of pathological paratendinous or intratendinous neovascularisation to target proposed co-location of painful neoneuralisation. The ...