Quantitative evaluation of passive muscle stiffness by shear wave elastography in healthy individuals of different ages
- PDF / 790,997 Bytes
- 8 Pages / 595.276 x 790.866 pts Page_size
- 103 Downloads / 172 Views
ULTRASOUND
Quantitative evaluation of passive muscle stiffness by shear wave elastography in healthy individuals of different ages Xiao Liu 1,2 & Hong-kui Yu 1 & Shu-ya Sheng 3 & Si-min Liang 2 & Hao Lu 2 & Rui-yun Chen 2 & Min Pan 2 & Zhi-bo Wen 1 Received: 16 June 2020 / Revised: 27 August 2020 / Accepted: 1 October 2020 # European Society of Radiology 2020
Abstract Objectives To investigate age-related changes on passive muscle stiffness in healthy individuals and measure the shear modulus in different age groups. Methods Shear wave elastography (SWE) movies of gastrocnemius medialis (GM) were collected during passive stretching induced by ankle rotation from plantarflexion (PF) to dorsiflexion (DF). A series of SWE images at ankle angles of PF 40°, PF 30°, PF 20°, PF 10°, 0°, DF 10°, DF 20°, and DF 30° were collected and shear moduli measured accordingly for analyses. Results Eighty-six healthy volunteers (27 children, 31 middle-aged adults, and 28 older people) were recruited. No significant difference was observed in the shear modulus between the three groups at ankle angles of PF 40°, PF 30°, PF 20°, PF 10°, and 0° (p > 0.05). The difference in the shear modulus among the three groups became significant as DF increased. At ankle angles of DF 10°, DF 20°, and DF 30°, the shear modulus was the greatest in the older group, followed by the middle-aged group and then the children group (p = 0.007, 0.000, and 0.000, respectively). Conclusions Passive muscle stiffness increases with age, and the difference between age groups was pronounced only after reaching a certain degree of stretching. Key Points • The influence of age on passive muscle stiffness becomes pronounced only after reaching a certain degree of stretching. • Age should be considered when evaluating passive muscle stiffness in muscular disorders. Keywords Elasticity imaging techniques . Muscle, skeletal . Passive stretching . Healthy volunteers
Abbreviations BMI Body mass index DF Dorsiflexion GM Gastrocnemius medialis
PF RoM SWE
Plantarflexion Range of motion Shear wave elastography
Min Pan and Zhi-bo Wen contributed equally to this work. * Min Pan [email protected] * Zhi-bo Wen [email protected] 1
Department of Radiology, Zhujiang Hospital, Southern Medical University, 253, Gongye Avenue, Guangzhou 510282, Guangdong, China
2
Department of Ultrasonography, Shenzhen Hospital of Guangzhou University of Chinese Medicine, 6001, Beihuan Avenue, Shenzhen 518034, Guangdong, China
3
Shenzhen Middle School, Shenzhen, Guangdong, China
Introduction Passive muscle stiffness is a promising indicator for evaluating the mechanical properties of skeletal muscle tissue due to the strong linear relationship with passive muscle force [1–3]. Quantification of passive muscle stiffness is particularly relevant in clinical settings because increased stiffness contributes to muscle adaptation and decreased passive range of motion (RoM) in joints, which disrupts motor function over time, and affects the quality of life adversely [4, 5]. Increased muscle stiffness
Data Loading...
