A comparison of the relationship of 14 performance-based measures with frailty in older women

Olga Theou, Gareth R. Jones, Jennifer M. Jakobi, Arnold Mitnitski, Anthony A. Vandervoort

Producción científica: Contribución a una revistaArtículorevisión exhaustiva

35 Citas (Scopus)

Resumen

The purpose of this study was to determine which performance measures of physical function are most closely related to frailty and whether physical function is different across levels of frailty. Fifty-three community-dwelling Greek women (63-100 years) participated in this study. Participants were divided into 3 tertiles based on level of frailty as calculated from a frailty index (FI): lowest FI group (<0.19 FI), intermediate FI group (0.19-0.36 FI), and highest FI group (>0.36 FI). Performance measures tested were handgrip and knee extension muscle strength and fatigue, upper and lower body muscular endurance, walking performance, agility, and dynamic balance. The greatest proportion of variance in the FI was explained by combining all performance-based measures of physical function. The performance measures that were most closely related to frailty yet different across levels of frailty were ambulatory mobility, lower body muscular endurance, and nondominant handgrip strength. Walking at a preferred pace had the strongest relationship to frailty rather than walking at maximal pace. Grip strength of the nondominant hand had a stronger correlation with frailty compared with the dominant hand. The FI was a better predictor of physical function than chronological age. The decline in physical function accelerated after the intermediate FI tertile. Definitions of frailty need to combine performance-based measures that can identify impairments in various domains of physical function. The assessment protocols of these measures are important.

Idioma originalEnglish
Páginas (desde-hasta)928-938
Número de páginas11
PublicaciónApplied Physiology, Nutrition and Metabolism
Volumen36
N.º6
DOI
EstadoPublished - dic. 2011

ASJC Scopus Subject Areas

  • Endocrinology, Diabetes and Metabolism
  • Physiology
  • Nutrition and Dietetics
  • Physiology (medical)

PubMed: MeSH publication types

  • Comparative Study
  • Journal Article

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