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JFSF Vol 9, No 3, September 2024, p.192-200

doi: 10.22540/JFSF-09-192

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Original Article

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

Patricia Parreira Batista1, Monica Rodrigues Perracini2,3, Daniele Sirineu Pereira1, Juleimar Soares Coelho De Amorim4, Leani Souza Máximo Pereira1,5

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

Keywords: Aged, Functional Muscle Quality, Muscle Strength, Physical Functional Performance, Sarcopenia

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: MQIPOW/LTM OR = 0.67 (95% CI 0.52; 0.85); MQIPT/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.
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