Can EWGSOP2 and SDOC Definitions of Sarcopenia Identify Functional Muscle Quality?

Original Article

J Frailty Sarcopenia Falls 2024 Sep; 9(3):192-200 Copied!

10.22540/JFSF-09-192 Copied!

Patricia Parreira Batista¹, Monica Rodrigues Perracini^2,3, Daniele Sirineu Pereira¹, Juleimar Soares Coelho De Amorim⁴, Leani Souza Máximo Pereira^1,5

Program of Rehabilitation Sciences, Department of Physical Therapy, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte (MG), Brazil
Master’s and Doctoral Programs in Physical Therapy, Universidade Cidade de São Paulo (UNICID), São Paulo (SP), Brazil
Master’s and Doctoral Programs in Gerontology, Faculty of Medical Sciences, Universidade Estadual de Campinas (UNICAMP), Campinas, São Paulo (SP), Brazil
Physical Therapy Course, Instituto Federal do Rio de Janeiro, Rio de Janeiro (IFRJ), Brazil
Postgraduate Program in Health Sciences, Faculdade Ciências Médicas de Minas Gerais (FCMMG), Belo Horizonte (MG), Brazil

Keywords:

Abstract

Objectives

To compare the European Working Group on Sarcopenia in Older People (EWGSOP2) and the Sarcopenia Definition and Outcomes Consortium (SDOC) in identifying muscle quality indexes (MQI) and lower limb muscle performance in older women aged≥65.

Methods

Participants meeting EWGSOP2 and SDOC criteria were classified into the sarcopenia group (GS); others were placed in the non-sarcopenia group (GNS). Using an isokinetic dynamometer, we assessed peak torque (PT), maximal work (MW), and power (POW) of lower limbs. MQI was calculated as the ratio of muscle performance to appendicular lean mass, adjusted for body mass index (BMI) and lean tissue mass of the right lower limb (LTM).

Results

We included 96 older women. In both SDOC (n=37) and EWGSOP2 (n=48) sarcopenia groups, muscle performance and BMI-adjusted MQI were significantly lower. Sarcopenia (SDOC) was significantly associated with all lower limb muscle performance and MQI variables [adjusted model by age and race: MQI_POW/LTM OR=0.67 (95% CI 0.52; 0.85); MQI_PT/LTM OR=0.76 (95% CI 0.64; 0.89)].

Conclusions

Older women diagnosed with sarcopenia by EWGSOP2 and SDOC criteria showed significant declines in muscle function and quality. The SDOC definition discriminated muscle contraction quality components in older individuals with and without sarcopenia.