Hypermacroskelic:
In hypermacroskelic individuals the sitting height is greater than 55 percent of the overall height. Hypermacroskelia on the population level is very rare. It has been identified with an average cormic index of 55.5 on BaBinga Pygmies of N'Gali, as well as Yupik of South Alaska with an index of 55.4. As not all Bambutid and Eskimid populations have been studied, one can assume that it is found in similar groups. In the African forests the short legs are associated with very short stature. Here the air is hot and humid so that sweating is inefficient, and small stature limits the heat during exertion. However, Asian Negritos do not show such high cormic indices. The short limbs in Arctic regions combined with a large trunk offer a better protection against the cold (Allen's rule).