Ultrasound imaging evaluation of structural and textural features in asymptomatic achilles tendons in pre-professional dancers: A cross-sectional study
Highlights:
• A lower echointensity in asymptomatic AT was observed for the heterogeneous group.
• A higher echovariation in asymptomatic AT was observed for the heterogeneous group.
• Tendon echogenicity did not interact with performance variables.
Objective: To evaluate performance descriptors, sociodemographics variables and tendon echogenicity of asymptomatic Achilles tendons and to compare the echotexture from different classification subgroups.
Design: A prospective, randomized cross-sectional study was carried out.
Setting: laboratory of university.
Participants: Forty-two Achilles tendons (AT) were recruited from pre-professional dancers. Based on the echogenicity pattern, the sample was divided into two groups (n = 21, Heterogeneous group; n = 21, Homogeneous group).
Main outocome measures: Ultrasound images and ImageJ measurements were performed to evaluate thickness (AT-TH), echointensity (EI) and echovariation (EV), in addition to a balance and endurance test were measured as performance parameter.
Results: EI (p = 0.001) and EV (p = 0.001) reported statistically significant differences between groups. AT-TH, endurance test, balance test, years of dance, training hours per week and average pointe hours per week did not showed differences between groups. A multivariate prediction model between groups and the echotexture variables (EI (R2 = 0.569; EV (R2 = 0.341)) were determined.
Conclusion: Asymptomatic AT of heterogeneous group showed a lower EI and a higher EV compared to homogeneous group. Tendon echogenicity did not interact with performance variables.
© Copyright 2020 Physical Therapy in Sport. Elsevier. Kaikki oikeudet pidätetään.
Aiheet: | tanssi urheilulääketiede tutkimusmenetelmä sidekudos tukikudos diagnostiikka harjoittelu testi kestävyys tasapaino suorituskyky ultraääni |
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Aihealueet: | biologiset ja lääketieteelliset tieteet tekniset lajit |
DOI: | 10.1016/j.ptsp.2020.05.008 |
Julkaisussa: | Physical Therapy in Sport |
Julkaistu: |
2020
|
Vuosikerta: | 44 |
Numero: | July |
Sivuja: | 85-91 |
Julkaisutyypit: | artikkeli |
Kieli: | englanti (kieli) |
Taso: | kehittynyt |