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Quantitative evaluation of passive muscle stiffness by shear wave elastography in healthy individuals of different ages.
Liu, Xiao; Yu, Hong-Kui; Sheng, Shu-Ya; Liang, Si-Min; Lu, Hao; Chen, Rui-Yun; Pan, Min; Wen, Zhi-Bo.
Afiliação
  • Liu X; Department of Radiology, Zhujiang Hospital, Southern Medical University, 253, Gongye Avenue, Guangzhou, 510282, Guangdong, China.
  • Yu HK; Department of Ultrasonography, Shenzhen Hospital of Guangzhou University of Chinese Medicine, 6001, Beihuan Avenue, Shenzhen, 518034, Guangdong, China.
  • Sheng SY; Department of Radiology, Zhujiang Hospital, Southern Medical University, 253, Gongye Avenue, Guangzhou, 510282, Guangdong, China.
  • Liang SM; Shenzhen Middle School, Shenzhen, Guangdong, China.
  • Lu H; Department of Ultrasonography, Shenzhen Hospital of Guangzhou University of Chinese Medicine, 6001, Beihuan Avenue, Shenzhen, 518034, Guangdong, China.
  • Chen RY; Department of Ultrasonography, Shenzhen Hospital of Guangzhou University of Chinese Medicine, 6001, Beihuan Avenue, Shenzhen, 518034, Guangdong, China.
  • Pan M; Department of Ultrasonography, Shenzhen Hospital of Guangzhou University of Chinese Medicine, 6001, Beihuan Avenue, Shenzhen, 518034, Guangdong, China.
  • Wen ZB; Department of Ultrasonography, Shenzhen Hospital of Guangzhou University of Chinese Medicine, 6001, Beihuan Avenue, Shenzhen, 518034, Guangdong, China. min.pan@siat.ac.cn.
Eur Radiol ; 2020 Oct 14.
Artigo em Inglês | MEDLINE | ID: mdl-33052467
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.
Texto completo: Disponível Coleções: Bases de dados internacionais Base de dados: MEDLINE Idioma: Inglês Assunto da revista: Radiologia Ano de publicação: 2020 Tipo de documento: Artigo País de afiliação: China

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Texto completo: Disponível Coleções: Bases de dados internacionais Base de dados: MEDLINE Idioma: Inglês Assunto da revista: Radiologia Ano de publicação: 2020 Tipo de documento: Artigo País de afiliação: China