%0 Journal Article
%A van Beesel, Julia
%A Melillo, Stephanie
%A Vereecke, Evie
%+ Department of Human Origins, Max Planck Institute for Evolutionary Anthropology, Max Planck Society
%T 3D reconstruction of shoulder muscles in hominoid primates: Correlating scapular attachment areas with muscle volume  : 
%G eng
%U https://hdl.handle.net/21.11116/0000-0010-6645-E
%R 10.1111/joa.14199
%7 2025-01-04
%D 2025
%8 04.01.2025
%* Review method: peer-reviewed
%X Digital muscle reconstructions have gained attraction in recent years, serving as pow <br>erful tools in both educational and research contexts. These reconstructions can <br>derived from various 2D and 3D data sources, enabling detailed anatomical analyses <br>In this study, we evaluate the efficacy of surface scans in accurately reconstructing <br>volumes of the rotator cuff and teres major muscles across a diverse sample of homi <br>noids. Additionally, we investigate whether muscle origin area, as a dissection- based <br>observation, can reliably predict muscle volume. Our findings reveal that surface scans <br>provide sufficient coverage to accurately reproduce the in situ volumes of the rota <br>tor cuff muscles. However, the volume of the teres major was estimated less reliably <br>suggesting that muscles with less distinct skeletal boundaries may present challenges <br>for accurate reconstruction. Future studies will explore whether such muscles can <br>reconstructed with greater precision. Furthermore, we identify a significant correlation <br>between the origin area and muscle volume for the supraspinatus, infraspinatus, and <br>subscapularis muscles. These results suggest that muscle origin area can serve as a reli <br>able predictor of muscle volume, offering a skeletal indicator for estimating muscle <br>in both extant and extinct hominoids. These insights are particularly valuable for pale <br>ontological reconstructions, where direct soft tissue evidence is often lacking. By <br>tablishing a relationship between skeletal traits and muscle volume, our study provides <br>a framework for evaluating the accuracy of soft tissue reconstructions in hominoid <br>species. This approach not only enhances our understanding of hominoid anatomy <br>also offers new avenues for exploring the functional morphology of extinct taxa.
%K muscle origin area, muscle volume reconstruction, rotator cuff, surface scanning
%J Journal of Anatomy
%V 256
%N 5
%& 709
%P 709 - 723
%@ 0021-87821469-7580