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Segmentation and Linear Measurement for Body Composition Analysis using Slice-O-Matic and Horos
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Sarcopenia Prevalence Using Different Definitions in Older Community-Dwelling Canadians.

S A Purcell1, M MacKenzie, T G Barbosa-Silva

  • 1Dr. Carla Prado, Associate Professor, 4-002 Li Ka Shing Centre for Health Research Innovation (Office 2-021E), Edmonton, Alberta, Canada T6G 2E1, Tel: 780.492.7934

The Journal of Nutrition, Health & Aging
|August 4, 2020
PubMed
Summary
This summary is machine-generated.

Sarcopenia prevalence is low in older Canadians. However, different diagnostic criteria show poor agreement, making diagnosis challenging for this age group.

Keywords:
Body compositionmuscle functionphysical functionphysical performancestrength

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Area of Science:

  • Gerontology
  • Musculoskeletal Health
  • Epidemiology

Background:

  • Sarcopenia, a condition of muscle loss, affects millions globally.
  • Existing diagnostic criteria for sarcopenia vary, leading to inconsistencies.

Purpose of the Study:

  • To determine the prevalence of sarcopenia in older Canadians.
  • To compare the agreement of three international sarcopenia definitions.

Main Methods:

  • Observational cohort study of 12,592 Canadians aged 65+ from the Canadian Longitudinal Study on Aging.
  • Assessed appendicular lean mass (ALM), gait speed, and handgrip strength.
  • Applied criteria from IWGS, FNIH, and EWGSOP for sarcopenia diagnosis.

Main Results:

  • Gait speed below 1.0 m/s was the most common deficit (over 56%).
  • Sarcopenia prevalence ranged from 1.4% to 7.2% across definitions and sexes.
  • Agreement between criteria was low (Cohen's kappa 0.01–0.23), indicating minimal concordance.

Conclusions:

  • Sarcopenia prevalence is relatively low in older Canadian adults.
  • Current sarcopenia definitions demonstrate poor agreement in identifying affected individuals.