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. 2025 Mar 5;44:8. doi: 10.1186/s40101-025-00388-5

Table 4.

5, 25, 50, 75 and 95th percentile values of SMI, AMM/BMI, PhA, IR and RR in each age group

Age group (years) Male Female
15–19 20–29 30–49 50–64 65–74 75–84 85- 15–19 20–29 30–49 50–64 65–74 75–84 85-
SMI (kg/m2) 95 percentile 9.62 10.09 9.96 10.34 9.52 8.81 7.85 7.89 7.79 8.00 7.90 7.54 7.18 7.24
75 percentile 8.78 9.27 9.16 9.45 8.65 8.07 7.23 6.96 7.34 7.21 6.85 6.80 6.77 6.12
50 percentile 8.25 8.76 8.72 8.57 7.96 7.39 6.67 6.45 6.82 6.70 6.33 6.33 6.19 5.93
25 percentile 7.76 8.07 8.17 7.85 7.48 6.94 6.25 6.02 6.52 6.19 6.06 5.85 5.73 5.51
5 percentile 6.90 7.19 7.53 7.15 6.91 6.19 5.70 5.73 6.14 5.82 5.64 5.34 5.23 5.06
AMM/BMI (kg/kg/m2) 95 percentile 1.37 1.37 1.27 1.21 1.10 1.00 0.95 0.98 0.98 0.96 0.85 0.78 0.79 0.72
75 percentile 1.27 1.24 1.17 1.08 1.00 0.91 0.86 0.87 0.90 0.88 0.76 0.69 0.68 0.61
50 percentile 1.19 1.16 1.10 1.00 0.93 0.87 0.80 0.80 0.84 0.81 0.69 0.65 0.63 0.56
25 percentile 1.09 1.08 1.03 0.91 0.89 0.82 0.76 0.70 0.81 0.70 0.65 0.60 0.58 0.52
5 percentile 0.97 0.99 0.88 0.79 0.80 0.77 0.66 0.63 0.68 0.57 0.58 0.54 0.53 0.47
PhA (deg.) Whole Body 95 percentile 7.08 7.60 7.30 6.67 6.60 5.70 5.78 6.00 6.10 5.93 5.80 5.80 5.40 5.15
75 percentile 6.80 7.00 6.80 6.30 6.00 5.40 5.00 5.50 5.63 5.60 5.40 5.30 5.10 4.83
50 percentile 6.30 6.50 6.50 6.05 5.70 5.10 4.80 5.00 5.40 5.20 5.10 5.00 4.70 4.40
25 percentile 5.70 6.20 6.00 5.48 5.50 4.73 4.60 4.80 5.10 4.98 4.80 4.70 4.40 4.10
5 percentile 5.20 5.60 5.58 5.20 5.20 4.40 4.22 4.30 4.50 4.14 4.41 4.23 4.00 3.47
Upper limb 95 percentile 7.18 7.63 7.66 7.43 7.12 6.79 6.20 6.10 6.25 6.33 6.50 6.30 6.10 5.75
75 percentile 6.80 7.00 7.00 6.83 6.63 6.00 5.90 5.60 5.83 5.80 5.80 5.80 5.60 5.50
50 percentile 6.30 6.60 6.60 6.45 6.20 5.65 5.70 5.10 5.60 5.50 5.50 5.50 5.20 5.15
25 percentile 5.80 6.20 6.30 5.90 6.00 5.30 5.40 4.70 5.20 5.20 5.20 5.13 5.00 4.90
5 percentile 5.30 5.70 5.78 5.60 5.80 4.90 4.82 4.30 4.66 4.64 4.90 4.63 4.43 4.32
Lower limb 95 percentile 7.20 7.83 7.30 6.47 5.81 5.19 4.30 6.40 6.50 5.93 5.70 5.40 4.90 4.39
75 percentile 6.90 7.00 6.80 5.90 5.40 4.90 4.10 5.70 5.73 5.43 5.10 5.00 4.40 3.63
50 percentile 6.40 6.60 6.20 5.40 5.20 4.35 3.60 5.30 5.50 5.10 4.80 4.60 4.20 3.20
25 percentile 5.60 6.15 5.80 4.98 4.80 3.80 3.30 4.80 5.00 4.60 4.50 4.20 3.83 2.88
5 percentile 5.04 5.50 5.18 4.40 4.30 3.60 2.76 4.20 4.30 3.70 3.81 3.63 3.10 2.50
IR (Ω/Ω) Whole Body 95 percentile 0.819 0.805 0.801 0.820 0.819 0.848 0.857 0.850 0.845 0.855 0.845 0.855 0.864 0.879
75 percentile 0.799 0.785 0.788 0.809 0.810 0.832 0.842 0.832 0.822 0.831 0.831 0.837 0.846 0.860
50 percentile 0.782 0.775 0.773 0.792 0.802 0.822 0.832 0.822 0.814 0.817 0.824 0.826 0.837 0.850
25 percentile 0.769 0.758 0.766 0.780 0.791 0.814 0.826 0.811 0.803 0.805 0.814 0.817 0.824 0.838
5 percentile 0.754 0.740 0.748 0.770 0.773 0.796 0.804 0.789 0.784 0.796 0.799 0.801 0.815 0.826
Upper limb 95 percentile 0.815 0.810 0.803 0.816 0.817 0.833 0.850 0.847 0.846 0.843 0.839 0.847 0.854 0.864
75 percentile 0.799 0.790 0.790 0.798 0.803 0.822 0.824 0.829 0.826 0.825 0.826 0.830 0.835 0.846
50 percentile 0.787 0.778 0.776 0.782 0.794 0.811 0.816 0.822 0.813 0.815 0.818 0.819 0.826 0.833
25 percentile 0.773 0.764 0.768 0.776 0.779 0.799 0.809 0.811 0.802 0.805 0.808 0.809 0.814 0.824
5 percentile 0.760 0.741 0.740 0.759 0.763 0.782 0.793 0.795 0.788 0.793 0.785 0.792 0.801 0.811
Lower limb 95 percentile 0.821 0.807 0.816 0.842 0.846 0.873 0.902 0.847 0.849 0.872 0.865 0.870 0.892 0.912
75 percentile 0.803 0.785 0.793 0.822 0.829 0.865 0.884 0.827 0.824 0.837 0.841 0.852 0.865 0.898
50 percentile 0.777 0.769 0.779 0.807 0.816 0.845 0.869 0.812 0.807 0.822 0.831 0.838 0.849 0.883
25 percentile 0.758 0.755 0.760 0.790 0.808 0.826 0.854 0.800 0.800 0.808 0.820 0.825 0.840 0.871
5 percentile 0.749 0.729 0.744 0.769 0.784 0.812 0.847 0.775 0.772 0.793 0.797 0.809 0.825 0.844
RR (Ω/Ω) Whole Body 95 percentile 0.815 0.801 0.799 0.816 0.815 0.846 0.853 0.846 0.842 0.852 0.841 0.852 0.861 0.876
75 percentile 0.796 0.781 0.784 0.806 0.805 0.830 0.838 0.830 0.818 0.827 0.828 0.834 0.843 0.857
50 percentile 0.779 0.771 0.769 0.788 0.798 0.819 0.828 0.819 0.810 0.814 0.820 0.823 0.833 0.847
25 percentile 0.764 0.754 0.761 0.777 0.789 0.810 0.822 0.807 0.800 0.801 0.810 0.813 0.821 0.833
5 percentile 0.749 0.735 0.744 0.766 0.771 0.793 0.804 0.785 0.780 0.792 0.795 0.797 0.811 0.822
Upper limb 95 percentile 0.809 0.805 0.797 0.810 0.805 0.828 0.844 0.843 0.840 0.837 0.833 0.842 0.849 0.860
75 percentile 0.792 0.784 0.784 0.793 0.796 0.817 0.819 0.826 0.821 0.819 0.821 0.824 0.830 0.837
50 percentile 0.780 0.772 0.769 0.775 0.788 0.806 0.810 0.818 0.807 0.808 0.813 0.813 0.820 0.825
25 percentile 0.767 0.758 0.762 0.769 0.774 0.793 0.802 0.805 0.796 0.799 0.802 0.803 0.809 0.816
5 percentile 0.753 0.734 0.733 0.752 0.757 0.775 0.787 0.787 0.782 0.788 0.779 0.785 0.794 0.805
Lower limb 95 percentile 0.819 0.805 0.814 0.840 0.844 0.872 0.900 0.846 0.847 0.870 0.863 0.869 0.890 0.911
75 percentile 0.801 0.783 0.791 0.820 0.827 0.863 0.882 0.825 0.822 0.835 0.839 0.850 0.863 0.897
50 percentile 0.775 0.767 0.777 0.805 0.814 0.844 0.868 0.809 0.805 0.820 0.829 0.836 0.848 0.882
25 percentile 0.755 0.753 0.757 0.788 0.807 0.824 0.852 0.798 0.798 0.806 0.818 0.823 0.838 0.869
5 percentile 0.746 0.727 0.742 0.767 0.786 0.811 0.845 0.773 0.770 0.791 0.795 0.807 0.823 0.842

SMI skeletal muscle mass index, AMM appendicular muscle mass, BMI body mass index, PhA Phase angle, IR impedance ratio, RR Resistance ratio