Age-related differences in muscle shear moduli in the lower extremity

Ryota Akagi, Yota Yamashita, Yuta Ueyasu

研究成果: Article査読

62 被引用数 (Scopus)


This study investigated the age-related differences in shear moduli of the rectus femoris muscle (RF), the lateral head of the gastrocnemius muscle (LG) and the soleus muscle (SOL) using shear wave ultrasound elastography. Thirty-one young individuals and 49 elderly individuals volunteered for this study. The shear modulus of RF was determined at 50% of the thigh length, and those of LG and SOL were determined at 30% of the lower leg length. RF and LG shear moduli were significantly higher in young individuals than in elderly individuals, but there was no age-related difference in SOL shear modulus. From the standpoint of an index reflecting muscle mechanical properties, it is suggested that the lower muscle shear moduli of RF and LG are the reason for the decreased explosive muscle strength in the lower extremity and the increased risk of falls for elderly individuals.

ジャーナルUltrasound in Medicine and Biology
出版ステータスPublished - 2015 11月

ASJC Scopus subject areas

  • 生物理学
  • 放射線技術および超音波技術
  • 音響学および超音波学


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