Skeletal Muscle Lipid Composition Parallels Clinical Phenotype Extremes

Intramyocellular lipid (IMCL) is generally associated with insulin resistance and lipotoxicity. However, the “athlete’s paradox” is well documented, where IMCL levels are similar between athletes and patients with type 2 diabetes despite discrepant levels of insulin sensitivity. Differences in muscle lipid metabolites between aerobically trained, lean, insulin-sensitive (LT) vs. sedentary, overweight/obese, insulin-resistant (OIR) individuals...