Area indices and optimal cut-off values obtained from ROC curve analysis for height, weight, BMI, 15 specified SAT-layers, 4 Compartments, Total SAT, and TBF% of 32 male athletes and 32 male non-athletes.

1There are two possible hypotheses (H0): that either small/large values provide stronger evidence for positivity. 2Optimal cut-off value estimated by Youden-Index (Youden, 1950). 3Not significant (p>0.05). 4SAT thickness of 15 body sites in mm. 5Body sites biceps+triceps. 6Body sites front thigh+lateral thigh+rear thigh+inner thigh+calf. 7Body sites upper abdomen+lower abdomen+lower back+hip. 8Body sites neck+upper back+lateral chest+front chest. 9Body sites 1–15.