Screening of the general population is not recommended. Screen adults ages 65 years and older for sarcopenia annually or after a major health event (such as a fall).[2]Dent E, Morley JE, Cruz-Jentoft AJ, et al. International clinical practice guidelines for sarcopenia (ICFSR): screening, diagnosis and management. J Nutr Health Aging. 2018;22(10):1148-61.
http://www.ncbi.nlm.nih.gov/pubmed/30498820?tool=bestpractice.com
Detecting sarcopenia early on may help reduce the burden of morbidity and mortality caused.[2]Dent E, Morley JE, Cruz-Jentoft AJ, et al. International clinical practice guidelines for sarcopenia (ICFSR): screening, diagnosis and management. J Nutr Health Aging. 2018;22(10):1148-61.
http://www.ncbi.nlm.nih.gov/pubmed/30498820?tool=bestpractice.com
The International Conference on Sarcopenia and Frailty Research (ICSFR) suggests using gait speed or the 5-item SARC-F questionnaire to identify people with suspected sarcopenia, while the European Working Group on Sarcopenia in Older People 2 (EWGSOP2) recommends the SARC-F questionnaire or clinical judgment (e.g., when a patient age >65 years reports falling, feeling weak, walking slowly, difficulty rising from a chair, and/or weight/muscle loss).[1]Cruz-Jentoft AJ, Bahat G, Bauer J, et al; Writing Group for the European Working Group on Sarcopenia in Older People 2 (EWGSOP2), and the Extended Group for EWGSOP2. Sarcopenia: revised European consensus on definition and diagnosis. Age Ageing. 2019 Jan 1;48(1):16-31.
https://academic.oup.com/ageing/article/48/1/16/5126243
http://www.ncbi.nlm.nih.gov/pubmed/30312372?tool=bestpractice.com
[2]Dent E, Morley JE, Cruz-Jentoft AJ, et al. International clinical practice guidelines for sarcopenia (ICFSR): screening, diagnosis and management. J Nutr Health Aging. 2018;22(10):1148-61.
http://www.ncbi.nlm.nih.gov/pubmed/30498820?tool=bestpractice.com
In community practices, the SARC-F questionnaire is the most used and recommended tool for screening for sarcopenia.[1]Cruz-Jentoft AJ, Bahat G, Bauer J, et al; Writing Group for the European Working Group on Sarcopenia in Older People 2 (EWGSOP2), and the Extended Group for EWGSOP2. Sarcopenia: revised European consensus on definition and diagnosis. Age Ageing. 2019 Jan 1;48(1):16-31.
https://academic.oup.com/ageing/article/48/1/16/5126243
http://www.ncbi.nlm.nih.gov/pubmed/30312372?tool=bestpractice.com
[54]Zanker J, Sim M, Anderson K, et al. Consensus guidelines for sarcopenia prevention, diagnosis and management in Australia and New Zealand. J Cachexia Sarcopenia Muscle. 2023 Feb;14(1):142-56.
https://onlinelibrary.wiley.com/doi/10.1002/jcsm.13115
http://www.ncbi.nlm.nih.gov/pubmed/36349684?tool=bestpractice.com
It has a low-to-moderate sensitivity and a high specificity to predict low muscle strength.[1]Cruz-Jentoft AJ, Bahat G, Bauer J, et al; Writing Group for the European Working Group on Sarcopenia in Older People 2 (EWGSOP2), and the Extended Group for EWGSOP2. Sarcopenia: revised European consensus on definition and diagnosis. Age Ageing. 2019 Jan 1;48(1):16-31.
https://academic.oup.com/ageing/article/48/1/16/5126243
http://www.ncbi.nlm.nih.gov/pubmed/30312372?tool=bestpractice.com
Refer patients screened as positive (a total score ≥4 indicates that the patient is at risk of sarcopenia) for further evaluation using muscle strength, quality/quantity, and functional performance to confirm the presence of sarcopenia and its severity. Grip strength is considered a test for diagnosing sarcopenia, but it is not recommended as a screening tool.[2]Dent E, Morley JE, Cruz-Jentoft AJ, et al. International clinical practice guidelines for sarcopenia (ICFSR): screening, diagnosis and management. J Nutr Health Aging. 2018;22(10):1148-61.
http://www.ncbi.nlm.nih.gov/pubmed/30498820?tool=bestpractice.com
Screening for sarcopenia should be opportunistic at a routine appointment or may be applied following a visit to the primary care physician or after admission into the hospital (e.g., following a fall or any type of illness). Due to its slow and quiet development and low rates of identification in the community, sarcopenia is mainly noticed when patients contact a healthcare professional for other reasons. Certain conditions should also trigger an assessment for sarcopenia; for instance, due to the close connection between osteoporosis and sarcopenia, all older people who have had a minimal trauma fracture should be assessed for sarcopenia.[55]Kirk B, Zanker J, Duque G. Osteosarcopenia: epidemiology, diagnosis, and treatment-facts and numbers. J Cachexia Sarcopenia Muscle. 2020 Jun;11(3):609-18.
https://onlinelibrary.wiley.com/doi/10.1002/jcsm.12567
http://www.ncbi.nlm.nih.gov/pubmed/32202056?tool=bestpractice.com