Relations between anthropometric characteristics and androgen hormone levels in healthy young men

One hundred and ten healthy young men of German descent between the ages of 20-30 (average, 24.1) volunteered for this study. Seventy-eight per cent of these subjects were students at the University of Hamburg; the rest worked in a variety of occupations. The sample was very homogeneous with respect to education, 9407o having earned their diploma entitling them to attend a German university (Abitur). The subjects were investigated between the end of April and the end of July 1983. Each of the subjects provided two blood samples (25 ml venous blood).

When considering the face, there is a negative correlation between the bizygomatic breadth and the total testosterone and a positive correlation between the bizygomatic breadth and the proportion of free testosterone. The nasal breadth also exhibits a significantly positive correlation to the proportion of free testosterone, while the eye fissure height correlates significantly negatively to this ratio. The dimensions of the eye fissure, however, in particular show a positive relationship to DHT.

it is also striking that the ratio of free to total testosterone (Ts~/Tser) exhibits correlations to the anthropometric features which contrast with those of Tser. This may not be explained alone by the fact that Tser is the denominator of the ratio, as the absolute value of the correlation to TsjTser is frequently higher than to Tser. This effect may be due to the fact that there is a negative correlation between the total testosterone (T~) and the share of free testosterone (T~/Tser; cf. Couwenbergs et al. 1986, in which this correlation is interpreted as a negative feedback mechanism).

--- hunter eyes, girthy-ness and skull robustness = related to free testosterone. ---

One hundred and ten healthy young men of German descent between the ages of 20-30 (average, 24.1) volunteered for this study. Seventy-eight per cent of these subjects were students at the University of Hamburg; the rest worked in a variety of occupations. The sample was very homogeneous with respect to education, 9407o having earned their diploma entitling them to attend a German university (Abitur). The subjects were investigated between the end of April and the end of July 1983. Each of the subjects provided two blood samples (25 ml venous blood).

When considering the face, there is a negative correlation between the bizygomatic breadth and the total testosterone and a positive correlation between the bizygomatic breadth and the proportion of free testosterone. The nasal breadth also exhibits a significantly positive correlation to the proportion of free testosterone, while the eye fissure height correlates significantly negatively to this ratio. The dimensions of the eye fissure, however, in particular show a positive relationship to DHT.

it is also striking that the ratio of free to total testosterone (Ts~/Tser) exhibits correlations to the anthropometric features which contrast with those of Tser. This may not be explained alone by the fact that Tser is the denominator of the ratio, as the absolute value of the correlation to TsjTser is frequently higher than to Tser. This effect may be due to the fact that there is a negative correlation between the total testosterone (T~) and the share of free testosterone (T~/Tser; cf. Couwenbergs et al. 1986, in which this correlation is interpreted as a negative feedback mechanism).

--- hunter eyes, girthy-ness and skull robustness = related to free testosterone. ---