Achilles and patellar tendon morphology in dancers

Kornelia Kulig, Kari C. Oki, Yu Jen Chang, Gregory R Bashford

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

OBJECTIVES: To examine Achilles and patellar tendon morphology in dancers with and without tendon pain. METHODS: Fifty-three dancers with and without Achilles and/or patellar tendon pain participated. Eleven age-matched non-dancers served as controls. Longitudinal ultrasound images of the middle and distal Achilles and proximal and distal patellar tendons were acquired. To assess macromorphology, the thickness of the middle and distal Achilles and proximal and distal patellar tendons were measured. Micromorphology was analyzed by selecting 2 × 2-mm2 regions of interest in the tendons; spectral analysis using the fast Fourier transform was run for several kernels (2 × 2-mm2 subimages) within each image, and the peak spatial frequency (PSF) was extracted. A one-way ANOVA compared asymptomatic, symptomatic, and control tendon thickness and PSF. RESULTS: Macromorphology: There was no significant difference between asymptomatic and symptomatic dancers in middle or distal Achilles tendon thickness and distal patellar tendon thickness. Proximal patellar tendons in control subjects were thinner than those in asymptomatic (p=0.036) and symptomatic (p=0.003) dancers. Micromorphology: There was no significant difference in PSF between asymptomatic and symptomatic dancers and controls in the Achilles or patellar tendon. CONCLUSION: Increased proximal patellar tendon thickness without changes in tendon micromorphology suggests that tendon adaptations are more likely activity-related and less likely influenced by degeneration.

Original languageEnglish (US)
Pages (from-to)221-228
Number of pages8
JournalMedical Problems of Performing Artists
Volume29
Issue number4
StatePublished - Dec 1 2014

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Patellar Ligament
Achilles Tendon
Tendons
Pain
Dancers
Achilles
Distal
Fourier Analysis
Thickness
Analysis of Variance
Proximal
Micromorphology
Spatial Frequency

ASJC Scopus subject areas

  • Medicine(all)
  • History and Philosophy of Science

Cite this

Achilles and patellar tendon morphology in dancers. / Kulig, Kornelia; Oki, Kari C.; Chang, Yu Jen; Bashford, Gregory R.

In: Medical Problems of Performing Artists, Vol. 29, No. 4, 01.12.2014, p. 221-228.

Research output: Contribution to journalArticle

Kulig, K, Oki, KC, Chang, YJ & Bashford, GR 2014, 'Achilles and patellar tendon morphology in dancers', Medical Problems of Performing Artists, vol. 29, no. 4, pp. 221-228.
Kulig, Kornelia ; Oki, Kari C. ; Chang, Yu Jen ; Bashford, Gregory R. / Achilles and patellar tendon morphology in dancers. In: Medical Problems of Performing Artists. 2014 ; Vol. 29, No. 4. pp. 221-228.
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