Surface wave elastography is a reliable method to correlate muscle elasticity, torque, and electromyography activity level
| Autor: | Sofía Aguiar, Liliam Fernandes de Oliveira, Ernesto Blanco, Hélio V. Cabral, Leonardo Mendes Leal de Souza, Gustavo A. Grinspan, Nicolás Benech |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
non‐ultrasound surface wave elastography (NU‐SWE)
Adult Male Physiology Computer science Electromyography EMG activity shear elastic modulus (c 55) shear elastic modulus (c55) Physiology (medical) Elastic Modulus medicine QP1-981 Torque Humans skeletal muscle Muscle Skeletal medicine.diagnostic_test Work (physics) Biomechanics Gold standard (test) Original Articles Healthy Volunteers Biomechanical Phenomena Surface wave elbow flexion torque Elasticity Imaging Techniques Ultrasonic sensor Original Article Female Elastography Biomedical engineering |
| Zdroj: | Physiological Reports Physiological Reports, Vol 9, Iss 15, Pp n/a-n/a (2021) |
| ISSN: | 2051-817X |
| Popis: | The shear elastic modulus is one of the most important parameters to characterize the mechanical behavior of soft tissues. In biomechanics, ultrasound elastography is the gold standard for measuring and mapping it locally in skeletal muscle in vivo. However, their applications are limited to the laboratory or clinic. Thus, low‐frequency elastography methods have recently emerged as a novel alternative to ultrasound elastography. Avoiding the use of high frequencies, these methods allow obtaining a mean value of bulk shear elasticity. However, they are frequently susceptible to diffraction, guided waves, and near field effects, which introduces biases in the estimates. The goal of this work is to test the performance of the non‐ultrasound surface wave elastography (NU‐SWE), which is portable and is based on new algorithms designed to correct the incidence of such effects. Thus, we show its first application to muscle biomechanics. We performed two experiments to assess the relationships of muscle shear elasticity versus joint torque (experiment 1) and the electromyographic activity level (experiment 2). Our results were comparable regarding previous works using the reference ultrasonic methods. Thus, the NU‐SWE showed its potentiality to get wide the biomechanical applications of elastography in many areas of health and sports sciences. This work describes the non‐ultrasound surface wave elastography (NU‐SWE) as a novel tool for muscle biomechanics research. The method is low‐cost, portable, and can provide an accurate estimate of the bulk elasticity of skeletal muscle in real‐time. To test the performance of the NU‐SWE, we performed two experiments to assess the relationship between the muscle shear elasticity versus joint torque (experiment 1) and the electromyography activity level (experiment 2). |
| Databáze: | OpenAIRE |
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