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Assessing the consistency between the anthropometric method and bioelectrical impedance analysis when calculating the Heath-Carter somatotype in people without obesity: a cross-sectional study

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04 ago 2025
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Fig. 1:

Diagram of the location of measuring (potential) and current electrodes on the patient's hand and foot.
Diagram of the location of measuring (potential) and current electrodes on the patient's hand and foot.

Fig. 2:

Comparative analysis of endomorphy scores in female. A – assessment of bias using the Bland-Altman method, the Y-axis shows the “BIA-Anthro” difference in endomorphy scores, B – scatter plot between two methods for assessing somatotype. BIA – bioelectrical impedance analysis, SD (standard deviation), r – Pearson correlation coefficient, pc – Lin correlation concordance coefficient.
Comparative analysis of endomorphy scores in female. A – assessment of bias using the Bland-Altman method, the Y-axis shows the “BIA-Anthro” difference in endomorphy scores, B – scatter plot between two methods for assessing somatotype. BIA – bioelectrical impedance analysis, SD (standard deviation), r – Pearson correlation coefficient, pc – Lin correlation concordance coefficient.

Fig. 3:

Comparative analysis of mesomorphy scores in females. A– assessment of bias using the Bland-Altman method, the Y-axis shows the “BIA-Anthro” difference in mesomorphy scores, B – scatter plot between two methods for assessing somatotype. BIA – bioelectrical impedance analysis, SD (standard deviation), r – Pearson correlation coefficient, pc – Lin correlation concordance coefficient.
Comparative analysis of mesomorphy scores in females. A– assessment of bias using the Bland-Altman method, the Y-axis shows the “BIA-Anthro” difference in mesomorphy scores, B – scatter plot between two methods for assessing somatotype. BIA – bioelectrical impedance analysis, SD (standard deviation), r – Pearson correlation coefficient, pc – Lin correlation concordance coefficient.

Fig. 4:

Comparative analysis of ectomorphy scores in females. A – assessment of bias using the Bland-Altman method, the Y-axis shows the “BIA-Anthro” difference in ectomorphy scores, B – scatter plot between two methods for assessing somatotype. BIA – bioelectrical impedance analysis, SD (standard deviation), r – Pearson correlation coefficient, pc – Lin correlation concordance coefficient.
Comparative analysis of ectomorphy scores in females. A – assessment of bias using the Bland-Altman method, the Y-axis shows the “BIA-Anthro” difference in ectomorphy scores, B – scatter plot between two methods for assessing somatotype. BIA – bioelectrical impedance analysis, SD (standard deviation), r – Pearson correlation coefficient, pc – Lin correlation concordance coefficient.

Fig. 5:

Comparison of female somatotyping results by the Heath-Carter method using BIA and anthropometry. BIA – bioelectrical impedance analysis.
Comparison of female somatotyping results by the Heath-Carter method using BIA and anthropometry. BIA – bioelectrical impedance analysis.

Fig. 6:

Comparative analysis of endomorphy scores in young men. A – assessment of bias using the Bland-Altman method, the Y-axis shows the “BIA-Anthro” difference in endomorphy scores, B – scatter plot between two methods for assessing somatotype. BIA – bioelectrical impedance analysis, SD (standard deviation), r – Pearson correlation coefficient, pc – Lin correlation concordance coefficient.
Comparative analysis of endomorphy scores in young men. A – assessment of bias using the Bland-Altman method, the Y-axis shows the “BIA-Anthro” difference in endomorphy scores, B – scatter plot between two methods for assessing somatotype. BIA – bioelectrical impedance analysis, SD (standard deviation), r – Pearson correlation coefficient, pc – Lin correlation concordance coefficient.

Fig. 7:

Comparative analysis of mesomorphy scores in male. A – assessment of bias using the Bland-Altman method, the Y-axis shows the “BIA-Anthro” difference in mesomorphy scores, B – scatter plot between two methods for assessing somatotype. BIA – bioelectrical impedance analysis, SD (standard deviation), r – Pearson correlation coefficient, pc – Lin correlation concordance coefficient.
Comparative analysis of mesomorphy scores in male. A – assessment of bias using the Bland-Altman method, the Y-axis shows the “BIA-Anthro” difference in mesomorphy scores, B – scatter plot between two methods for assessing somatotype. BIA – bioelectrical impedance analysis, SD (standard deviation), r – Pearson correlation coefficient, pc – Lin correlation concordance coefficient.

Fig. 8:

Comparative analysis of ectomorphy scores in male. A – assessment of bias using the Bland-Altman method, the Y-axis shows the “BIA-Anthro” difference in ectomorphy scores, B – scatter plot between two methods for assessing somatotype. BIA – bioelectrical impedance analysis, SD (standard deviation), r – Pearson correlation coefficient, pc – Lin correlation concordance coefficient.
Comparative analysis of ectomorphy scores in male. A – assessment of bias using the Bland-Altman method, the Y-axis shows the “BIA-Anthro” difference in ectomorphy scores, B – scatter plot between two methods for assessing somatotype. BIA – bioelectrical impedance analysis, SD (standard deviation), r – Pearson correlation coefficient, pc – Lin correlation concordance coefficient.

Fig. 9:

Comparison of somatotyping results of male by Heath-Carter method using BIA and anthropometry.
Comparison of somatotyping results of male by Heath-Carter method using BIA and anthropometry.

Results of a comparative analysis of somatotype assessment using anthropometric measurements and bioelectrical impedance analysis_

Female

Somatotype BIA Anthropometry p pc r
M ± SD M ± SD

Endo 4.2±1.1 4.6±1,3 0.028* 0.84 (0.62; 0.94) 0.89
Meso 4.9±1.0 4.1±0.3 0.001* 0.31 (0.12; 0.48) 0.81
Ekto 2.3±1.2 2.3±1.4 0.886 0.96 (0.90; 0.99) 0.97

Male

Somatotype BIA Anthropometry p pc r
M ± SD M ± SD

Endo 2.1±1.3 3.1±1.1 0.432 0.21 (−0.40; 0.69) 0.23
Meso 5.6±1.6 3.8±1.4 0.001* 0.42 (0.10; 0.66) 0.84
Ecto 2.4±1.3 2.4±1.2 0.167 0.98 (0.94; 0.99) 0.99

Study participant data_

Parameters M M ± SD F M ± SD
Height, cm 182 ± 12 164 ± 6
Body mass, kg 61.4 ± 11.7 78.9 ± 15.5
BMI, kg/m2 22.3 ± 2.8 24.2 ± 3.9
Age, years 18.1 ± 1.3 18.4 ± 0.9
Shoulder girth, cm 27.3 ± 3.26 34.6 ± 3.7
Calf circumference, cm 34.8 ± 2.3 36.6 ± 3.3
Hip circumference, cm 69.7 ± 8.5 78.6 ± 7.9
Diameter of the distal epiphysis of the humerus, cm 5.3 ± 0.5 6.7 ± 0.6
Diameter of the distal femoral epiphysis, cm 8.1 ± 1.0 9.4 ± 0.8
Subscapular, mm 16.3 ± 7.0 14.3 ± 8.8
Triceps, mm 16.0 ± 5.6 9.9 ± 4.6
Iliac crest, mm 16.1 ± 8.0 13.8 ± 10.3
Medial calf, mm 19.5 ± 8.3 11.9 ± 5.4