The Comparative Associations of Ultrasound and Computed Tomography Estimates of Muscle Quality with Physical Performance and Metabolic Parameters in Older Men.
J Clin Med
aging; computed tomography; echogenicity; metabolic status; muscle quality; muscle strength; muscle tissue composition; myosteatosis; quantitative ultrasound; sarcopenia
Estimates of muscle tissue composition may have greater prognostic value than lean body mass levels regarding health-related outcomes. Ultrasound provides a relatively low cost, safe, and accessible mode of imaging to assess muscle morphology. The purpose of this study was to determine the construct validity of muscle echogenicity as a surrogate measure of muscle quality in a sample of older, predominantly African American (AA) participants. We examined the association of rectus femoris echogenicity with mid-thigh computed tomography (CT) scan estimates of intra- and intermuscular adipose tissue (IMAT), basic metabolic parameters via blood sample analysis, muscle strength, and mobility status. This observational study was conducted at a federal medical center and included 30 community-dwelling men (age, 62.5 ± 9.2; AA,
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Harris-Love, M., Avila, N., Adams, B., Zhou, J., Seamon, B., Ismail, C., Zaidi, S., Kassner, C., Liu, F., & Blackman, M. (2018). The Comparative Associations of Ultrasound and Computed Tomography Estimates of Muscle Quality with Physical Performance and Metabolic Parameters in Older Men.. J Clin Med, 7 (10). http://dx.doi.org/10.3390/jcm7100340