A Simplified Method for Considering Achilles Tendon Curvature in the Assessment of Tendon Elongation
| Autor: | Sebastian Bohm, M. R. Kharazi, Adamantios Arampatzis, Falk Mersmann, Christos Theodorakis |
|---|---|
| Přispěvatelé: | Hahn, Michael E. |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Strain (injury)
TP1-1185 Walking Curvature Biochemistry Article Analytical Chemistry Running tendon strain Tendon elongation medicine Humans Electrical and Electronic Engineering Treadmill Muscle Skeletal Instrumentation FOIL method Mathematics Ultrasonography walking and running Achilles tendon Observational error business.industry ultrasound Chemical technology Ultrasound 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten medicine.disease Atomic and Molecular Physics and Optics Biomechanical Phenomena medicine.anatomical_structure tendon elongation ddc:620 business Biomedical engineering |
| Zdroj: | Sensors Volume 21 Issue 21 Sensors (Basel, Switzerland) Sensors, Vol 21, Iss 7387, p 7387 (2021) |
| ISSN: | 1424-8220 |
| DOI: | 10.3390/s21217387 |
| Popis: | The consideration of the Achilles tendon (AT) curvature is crucial for the precise determination of AT length and strain. We previously established an ultrasound-kinematic-based method to quantify the curvature, using a line of reflective foil skin markers covering the AT from origin to insertion. The current study aimed to simplify the method by reducing the number of markers while maintaining high accuracy. Eleven participants walked (1.4 m/s) and ran (2.5, 3.5 m/s) on a treadmill, and the AT curvature was quantified using reflective foil markers aligned with the AT between the origin on the gastrocnemius myotendinous-junction (tracked by ultrasound) and a marker on the calcaneal insertion. Foil markers were then systematically removed, and the introduced error on the assessment of AT length and strain was calculated. We found a significant main effect of marker number on the measurement error of AT length and strain (p< 0.001). Using more than 30% of the full marker-set for walking and 50% for running, the R2 of the AT length error saturated, corresponding to average errors of < 0.1 mm and < 0.15% strain. Therefore, a substantially reduced marker-set, associated with a marginal error, can be recommended for considering the AT curvature in the determination of AT length and strain. |
| Databáze: | OpenAIRE |
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