Alternative to Gait Speed in Sarcopenia Assessment

All participants underwent the 4-meter Gait Speed Test, the Short Physical Performance Battery (SPPB), the Timed Up and Go (TUG) test, and the Elbow Performance Test twice, with a 7-10-day interval between sessions. In the Elbow Performance Test, a 1-kilogram sandbag was fixed to the distal forearm of the dominant arm, and participants were asked to perform 30 consecutive elbow flexion-extension movements.