Electrical Bioimpedance Phase Angle and Sarcopenia Diagnostic in Functional Elderly

Abstract Bioelectrical impedance analysis (BIA) directly measures the phase angle (PA). PA has been associated with nutritional parameters, strength, and muscle mass, emerging as a possible novel diagnostic marker of sarcopenia. The aim this study was to establish cut off points for diagnosing sarcopenia in functional elderly from Colombia. 255 volunteers were analyzed. measurements taken by BIA used, level correlation hand grip strength (HGS) skeletal mass index (SMMI) established. In men women, had direct SMMI (p=0.010; r=0.252) (p=0.003; r=0.237) HGS (p=0.038; r=0.206,) (p=0.019; r=0.190) respectively. We used different statistical approach stablish various their sensitivities specificities. ROC curves areas under curve elaborated (0.91 0.56 women). 6.12 ° 5.74 women are proposed diagnose sarcopenia, good performance less adequate demonstrating differences body composition according sex even within same population need further studies relate these cut-off outcomes.