title: Physical activity and sarcopenic obesity: definition, assessment, prevalence and mechanism.
abstract: Sarcopenic obesity is the coexistance of sarcopenia and obesity. Modern sarcopenia definition includes low muscle mass, weak muscle strength (handgrip strength) and poor physical function (slow walking), although the clinical definition of each varies worldwide. The cut-points for low muscle mass for men and women using appendicular lean mass divided by height (kg/m2) are ≤7.0 and ≤5.4 in Asians, and ≤7.23 and ≤5.67 in Caucasians, respectively. The cut-points for weak handgrip strength (kg) for men and women are <26 and <18 in Asians, and <30 and <20 in Caucasians, respectively. The cut-point for slow walking is ≤0.8 m/s in men and women. Current data suggest the potential benefits of physical activity and fitness on sarcopenic obesity in older adults.
authors.affiliation: Department of Kinesiology, College of Human Sciences, Iowa State University, Ames, IA 50011, USA; Department of Kinesiology, College of Human Sciences, Iowa State University, Ames, IA 50011, USA.
authors.forename: Duck-Chul
authors.initials: DC
authors.lastname: Lee
authors.affiliation: Department of Kinesiology, College of Human Sciences, Iowa State University, Ames, IA 50011, USA; Department of Kinesiology, College of Human Sciences, Iowa State University, Ames, IA 50011, USA.
authors.forename: Robin P
authors.initials: RP
authors.lastname: Shook
authors.affiliation: Department of Exercise Science, University of South Carolina, Columbia, SC 29208, USA; Department of Exercise Science, University of South Carolina, Columbia, SC 29208, USA.
authors.forename: Clemens
authors.initials: C
authors.lastname: Drenowatz
authors.affiliation: Department of Exercise Science, University of South Carolina, Columbia, SC 29208, USA; Department of Epidemiology & Biostatistics, University of South Carolina, Columbia, SC 29208, USA; Department of Exercise Science, University of South Carolina, Columbia, SC 29208, USA; Department of Epidemiology & Biostatistics, University of South Carolina, Columbia, SC 29208, USA.
authors.forename: Steven N
authors.initials: SN
authors.lastname: Blair
keywords: exercise; handgrip strength; muscle mass; physical activity; physical fitness; physical function; sarcopenia; sarcopenic obesity; walking speed