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This study aimed to determine the diagnostic accuracy of sarcopenia through muscle mass quantity\/quality parameters, using the bioimpedance analysis (BIA), isokinetic, and ultrasound tools in probable sarcopenic community-dwelling older adults (\u226560 years). Also, it aimed to suggest possible new cut-off points to confirm sarcopenia diagnosis. Methods: A cross-sectional exploratory analysis study was performed with probable sarcopenic and non-sarcopenic older adults. BIA, isokinetic, and ultrasound parameters were evaluated. The protocol was registered on ClinicalTrials.gov (NCT05485402). Results: A total of 50 individuals were included, 38 with probable sarcopenia (69.63 \u00b1 4.14 years; 7 men and 31 women) and 12 non-sarcopenic (67.58 \u00b1 4.54 years; 7 men and 5 women). The phase angle (cut-off: 5.10\u00b0 men, p = 0.003; 4.95\u00b0 women, p &lt; 0.001), peak torque (cut-off: 66.75 Newtons-meters (N-m) men, p &lt; 0.001; 48.35 N-m women, p &lt; 0.001), total work (cut-off: 64.00 Joules (J) men, p = 0.007; 54.70 J women, p = 0.001), and mean power (cut-off: 87.8 Watts (W) men, p = 0.003; 48.95 W women, p = 0.008) in leg extension, as well as the the forearm muscle thickness (cut-off: 1.41 cm (cm) men, p = 0.017; 0.94 cm women, p = 0.041), had great diagnostic accuracy in both sexes. Conclusions: The phase angle, peak torque, total work, and mean power in leg extension, as well as forearm muscle thickness, had great diagnostic accuracy in regard to sarcopenia, and the suggested cut-off points could lead to the confirmation of sarcopenia diagnosis, but more studies are needed to confirm this.<\/jats:p>","DOI":"10.3390\/nu16101496","type":"journal-article","created":{"date-parts":[[2024,5,15]],"date-time":"2024-05-15T11:31:52Z","timestamp":1715772712000},"page":"1496","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["New Perspectives for Low Muscle Mass Quantity\/Quality Assessment in Probable Sarcopenic Older Adults: An Exploratory Analysis Study"],"prefix":"10.3390","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4375-0026","authenticated-orcid":false,"given":"Maria","family":"Besora-Moreno","sequence":"first","affiliation":[{"name":"Functional Nutrition, Oxidation, and Cardiovascular Diseases Group (NFOC-Salut), Facultat de Medicina i Ci\u00e8ncies de la Salut, Universitat Rovira i Virgili, 43201 Reus, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7439-9531","authenticated-orcid":false,"given":"Elisabet","family":"Llaurad\u00f3","sequence":"additional","affiliation":[{"name":"Functional Nutrition, Oxidation, and Cardiovascular Diseases Group (NFOC-Salut), Facultat de Medicina i Ci\u00e8ncies de la Salut, Universitat Rovira i Virgili, 43201 Reus, Spain"},{"name":"Institut Investigaci\u00f3 Sanit\u00e0ria Pere i Virgili (ISPV), 43204 Reus, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7792-5795","authenticated-orcid":false,"given":"Claudia","family":"Jim\u00e9nez-ten Hoevel","sequence":"additional","affiliation":[{"name":"Functional Nutrition, Oxidation, and Cardiovascular Diseases Group (NFOC-Salut), Facultat de Medicina i Ci\u00e8ncies de la Salut, Universitat Rovira i Virgili, 43201 Reus, Spain"},{"name":"Institut Investigaci\u00f3 Sanit\u00e0ria Pere i Virgili (ISPV), 43204 Reus, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cristina","family":"Sep\u00falveda","sequence":"additional","affiliation":[{"name":"Functional Nutrition, Oxidation, and Cardiovascular Diseases Group (NFOC-Salut), Facultat de Medicina i Ci\u00e8ncies de la Salut, Universitat Rovira i Virgili, 43201 Reus, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8948-2215","authenticated-orcid":false,"given":"Judit","family":"Queral","sequence":"additional","affiliation":[{"name":"Functional Nutrition, Oxidation, and Cardiovascular Diseases Group (NFOC-Salut), Facultat de Medicina i Ci\u00e8ncies de la Salut, Universitat Rovira i Virgili, 43201 Reus, Spain"},{"name":"Institut Investigaci\u00f3 Sanit\u00e0ria Pere i Virgili (ISPV), 43204 Reus, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gl\u00f2ria","family":"Bernal","sequence":"additional","affiliation":[{"name":"Hospital Universitari Sant Joan de Reus, 43204 Reus, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Laura","family":"P\u00e9rez-Merino","sequence":"additional","affiliation":[{"name":"Hospital Universitari Sant Joan de Reus, 43204 Reus, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6775-2034","authenticated-orcid":false,"given":"Sergio","family":"Martinez-Hervas","sequence":"additional","affiliation":[{"name":"Service of Endocrinology and Nutrition, Hospital Cl\u00ednico Universitario of Valencia, 46010 Valencia, Spain"},{"name":"Department of Medicine, University of Valencia, 46010 Valencia, Spain"},{"name":"INCLIVA Biomedical Research Institute, 46010 Valencia, Spain"},{"name":"CIBER de Diabetes y Enfermedades Metab\u00f3licas Asociadas (CIBERDEM), 28029 Madrid, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5129-6954","authenticated-orcid":false,"given":"Blanca","family":"Alabadi","sequence":"additional","affiliation":[{"name":"Service of Endocrinology and Nutrition, Hospital Cl\u00ednico Universitario of Valencia, 46010 Valencia, Spain"},{"name":"INCLIVA Biomedical Research Institute, 46010 Valencia, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yolanda","family":"Ortega","sequence":"additional","affiliation":[{"name":"Institut Universitari d\u2019Investigaci\u00f3 en Atenci\u00f3 Prim\u00e0ria-IDIAP Jordi Gol, 43202 Tarragona, Spain"},{"name":"Primary Care Centre Salou, Institut Catal\u00e0 de la Salut, 43840 Tarragona, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3351-0942","authenticated-orcid":false,"given":"Rosa Maria","family":"Valls","sequence":"additional","affiliation":[{"name":"Functional Nutrition, Oxidation, and Cardiovascular Diseases Group (NFOC-Salut), Facultat de Medicina i Ci\u00e8ncies de la Salut, Universitat Rovira i Virgili, 43201 Reus, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rosa","family":"Sol\u00e0","sequence":"additional","affiliation":[{"name":"Functional Nutrition, Oxidation, and Cardiovascular Diseases Group (NFOC-Salut), Facultat de Medicina i Ci\u00e8ncies de la Salut, Universitat Rovira i Virgili, 43201 Reus, Spain"},{"name":"Institut Investigaci\u00f3 Sanit\u00e0ria Pere i Virgili (ISPV), 43204 Reus, Spain"},{"name":"Hospital Universitari Sant Joan de Reus, 43204 Reus, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5327-932X","authenticated-orcid":false,"given":"Anna","family":"Pedret","sequence":"additional","affiliation":[{"name":"Functional Nutrition, Oxidation, and Cardiovascular Diseases Group (NFOC-Salut), Facultat de Medicina i Ci\u00e8ncies de la Salut, 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