The first three PCs describe 78.6% of variation in the sample, with PC1 (56.3%) separating hunter-gatherers from farm- ers/agriculturalists. Positive values along PC1 (hunter-gatherers) reflect mediolaterally wider and dorsoplantarly compressed cor- pora with enlarged talar necks and heads. Negative values along PC1 (sedentary groups) reflect more cuboidal corpora, a less posteriorly-extended flexor hallucis longus groove, and reduced anterior extension of trochleae and smaller talar heads. Results demonstrate that human talar shape may be influenced by loading differences, presumably due to a combination of substrate/terrain use, lifestyle (nomadic vs. sedentary) and subsistence strategy, resulting in different arthrokinematics weight bearing by the talus over the course of stance phase (load bearing). These results could have important implications for the interpretation of fossil spec- imens and inferring likely ranges of joint movements (arthrokinematics) in extinct taxa. Future studies could increase the sample size to test the effects of subsistence economy and different patterns of mobility.
|Publication status||Published - 2017|
|Event||7th Annual ESHE Meeting - Leiden, Netherlands|
Duration: 20 Sep 2017 → 24 Sep 2017
Conference number: 7
|Conference||7th Annual ESHE Meeting|
|Period||20/09/17 → 24/09/17|