This had been previously studied by Richards et al. The clavicle was relatively short, which, in combination with the shape of the shoulder blade and the low twist of the arm bone resulted in the shoulder being moved slightly forward, as shrugged. Brown and Morwood also identified a number of additional, less obvious features that might distinguish LB1 from modern H. So somehow in two generation height keeps increasing substantially — how is that explained?! Colin Groves, of the Australian National University responded that the theory was "implausible" for several reasons, including the fact that abnormal features in the jaw of LB1 are shared by another specimen, LB6. They must have lots of design quirks.
I think that physiologists and geneticists should look at some of the chanpions, starting with Suleymanoglu.
Boys Track and Field
This had been previously studied by Richards et al. Morwood, Mike; van Oosterzee, Penny However, this approach does not address the evolutionary effects of mortality risk on ontogenetic variation, a common theme in life-history studies. The fix for this APAR is currently targeted for inclusion in fix pack 8. Aside from smaller body size, the specimens seem otherwise to resemble H. Combine this constant stress with the incredible densities and I think between group differences are somewhat more explicable.