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Despite the high prevalence and clinical significance of sarcopenia in patients with IBD, few patients undergo routine muscle evaluation.<\/jats:p><\/jats:sec><jats:sec><jats:title>Aim<\/jats:title><jats:p>The goal of this study was to review the mechanisms of sarcopenia in patients with IBD and understand novel modalities to assess and treat impaired muscle mass or function.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Pubmed and Cochrane databases were searched including articles published up to February 2023 utilizing the following keywords: \u201cinflammatory bowel disease\u201d, \u201cIBD\u201d, \u201cCrohn's disease\u201d, \u201culcerative colitis\u201d, \u201csarcopenia\u201d, \u201cmyosteatosis\u201d, \u201cmuscle health\u201d, and \u201cfrailty\u201d.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The pathogenesis of sarcopenia in IBD is not well defined, however, there is evidence supporting the role of malabsorption, reduced protein intake, chronic inflammation, dysbiosis, decreased physical activity, medication effects and hormone signaling from visceral adiposity. Traditional sarcopenia assessment techniques include direct measurements on cross sectional imaging. However, given the time, cost and radiation exposure associated with cross sectional imaging, new bedside tools are now available to estimate muscle mass, including assessment of grip strength, mid upper arm circumference and body composition utilizing bioelectrical impedance analysis. In addition, novel biomarkers for assessing muscle mass and techniques utilizing point of care ultrasound have been proposed to make sarcopenia evaluation more streamlined in the IBD clinic.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Sarcopenia is associated with poor clinical outcomes independent of IBD activity and therefore muscle health should be assessed in all IBD patients at routine intervals. Future studies to better our understanding of the pathophysiology as well as most effective management of sarcopenia in IBD will help guide clinical care and reduce disease related complications.<\/jats:p><\/jats:sec>","DOI":"10.1111\/apt.17498","type":"journal-article","created":{"date-parts":[[2023,4,13]],"date-time":"2023-04-13T07:30:55Z","timestamp":1681371055000},"page":"1216-1230","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":42,"title":["Review article: Putting some muscle into sarcopenia\u2014the pathogenesis, assessment and clinical impact of muscle loss in patients with inflammatory bowel disease"],"prefix":"10.1111","volume":"57","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8451-6092","authenticated-orcid":false,"given":"Stephanie L.","family":"Gold","sequence":"first","affiliation":[{"name":"The Dr. Henry D. 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