Fig. 3

The heatmap shows the correlational relationship between the muscle mass and glucose metabolism parameters in male and female participants. The degree of the gradient in red represents the degree of positive correlation, and the blue represents the degree of negative correlation. FPCP, fasting C-peptide; PPCP, postprandial 2-hour C-peptide; FPG, fasting plasma glucose; PPG,2-hour postprandial plasma glucose; GA, Glycated Albumin; HbA1c, glycated hemoglobin; SMI-Upper, upper limb skeletal muscle index; SMI-Lower, lower limb skeletal muscle index; ASMI, appendicular skeletal muscle mass index; SMI-Total, total skeletal muscle index