Relationships of muscle echo intensity with walking ability and physical activity in the very old population

Yusuke Osawa, Yasumichi Arai, Yuko Oguma, Takumi Hirata, Yukiko Abe, Koichiro Azuma, Michiyo Takayama, Nobuyoshi Hirose

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

This study investigated the relationships between muscle echo intensity (EI), physical activity (PA), and functional mobility in 108 Japanese (88-92 years). We measured EI and muscle thickness (MT) at the midpoint of the anterior superior iliac spine and patella using B-mode ultrasound. Light and moderate-to-vigorous PA (LPA and MVPA) were assessed with a triaxial accelerometer. The timed up and go (TUG) test was used to measure for functional mobility. EI, but not MT, was significantly associated with both TUG scores (β = 0.17, p = .047) and MVPA (β = -0.31, p = .01) when adjusted by potential confounders. However, association between EI and TUG disappeared after adjusted for MVPA. Meanwhile, MVPA was significantly associated with TUG scores independent of EI (β = -0.35, p < .001). Although EI of anterior thigh muscles might be a weaker predictor of functional morbidity than MVPA, it is a noninvasive and practical approach for assessing muscle quality in the very old.

Original languageEnglish
Pages (from-to)189-195
Number of pages7
JournalJournal of Aging and Physical Activity
Volume25
Issue number2
DOIs
Publication statusPublished - 2017 Apr 1

Keywords

  • Accelerometer
  • Aged
  • Echo intensity
  • Independent living
  • Physical activity
  • Timed up and go test
  • Ultrasound

ASJC Scopus subject areas

  • Physical Therapy, Sports Therapy and Rehabilitation
  • Rehabilitation
  • Gerontology
  • Geriatrics and Gerontology

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