Fig. 1From: A comparison of interferential current efficacy in elderly intervertebral disc degeneration patients with or without sarcopenia: a retrospective studyOverview of study flowchart. GS: Gait speed; SMI: Skeletal muscle index; BIA: Bioelectrical impedance analysis; IDD: Intervertebral disc degeneration; IFC: Interferential current; IWS: Intervertebral disc degeneration patients with sarcopenia; IWOS: Intervertebral disc degeneration patients without sarcopenia; AWGS2019: Asian Working Group for Sarcopenia 2019Back to article page