論文種別	原著(症例報告除く)
言語種別	英語
査読の有無	その他(不明)
表題	Associations of sagittal spinal alignment with shear wave velocity, thickness, and echo intensity of muscles attached to the spine and pelvis in healthy women.
掲載誌名	正式名：Journal of biomechanics 略　 称：J Biomech ISSNコード：18732380/00219290
掲載区分	国外
巻・号・頁	205,pp.113440
著者・共著者	Masahide Yagi, Kotono Kobayashi, Hiroshige Tateuchi, Megumi Ota, Haruka Sakata, Hikari Itsuda, Tomoyo Komatsu, Haruna Ukigai, Sayaka Okada, Noriaki Ichihashi
発行年月	2026/08
概要	This study aimed to explore the association between sagittal spinal alignment and the properties of the muscles attached to the spine and pelvis in healthy women. In 83 healthy women (aged 21-82 years), the shear wave velocity, thickness, and echo intensity of the upper and lower limb and trunk muscles were measured using ultrasonography. A Spinal Mouse was used to assess the sagittal spinal alignment (thoracic kyphosis angle, lumbar lordosis angle, and sacral anterior inclination angle) in the standing position. Simple regression analysis examined associations among spinal alignment, age, and the properties of the muscles attached to each spinal region. Forced-entry multiple regression analyses were then performed for each alignment angle using the significant muscle variables as independent variables, with age as an adjusted variable (p < 0.05). There was no significant association between the thoracic kyphosis angle and age or muscle properties. While the lumbar lordosis angle was associated with muscle thickness and echo intensity in several muscles, these associations were not significant after adjusting for age or after additionally adjusting for menopausal status and body mass index. In simple regression analyses, the sacral anterior inclination angle was associated with several muscle properties. After adjusting for age, only lower multifidus muscle thickness remained associated with a smaller sacral anterior inclination angle, which remained significant after additionally adjusting for menopausal status and body mass index. The results showed that a thinner multifidus was associated with a smaller sacral anterior inclination angle in healthy women.
DOI	10.1016/j.jbiomech.2026.113440
PMID	42398125