New Publication: Dynamic Musculoskeletal Functional Morphology: Integrating diceCT and XROMM

Screen Shot 2018-02-05 at 11.46.56 AM
Select macaque hyolingual muscles. (Top) Lateral view of cranium, mandible (transparent), basihyoid, and select hyolingual muscles; (Bottom) Same view as top, showing only the muscles that are hypothesized to produce hyoid elevation. Abbreviations (color): ad, anterior digastric (yellow); bh, basihyoid (tan); gg, genioglossus (dark gray); gh, geniohyoid (blue); hg, hyoglossus (light blue); mh, mylohyoid (red); pd, posterior digastric (purple); pg, palatoglossus (pink); sg, styloglossus (green); sh, stylohyoid (orange); to, tongue (light gray). (The kinematics of these muscles were reconstructed using a combination of XROMM and FMM.)

“Studying muscle functional morphology is often easier said than done because definitively determining muscle function requires measuring many morphological and physiological parameters simultaneously. To advance our studies of the primate hyolingual apparatus, which is composed of dozens of muscles, we developed a pipeline to integrate diceCT and EMG with X-ray Reconstruction of Moving Morphology (XROMM, Brainerd et al. 2010). XROMM obtains the high spatiotemporal resolution kinematics necessary to analyze the three dimensional complexity of hyolingual movement, and incorporating diceCT provides a new method for confirming EMG electrode location and improves the accuracy of muscle and fiber length and orientation measurements. Together, these methods will help scientists to determine how organisms navigate the many ways of tuning organismal performance through musculoskeletal design.”

 

-Lead Author, Courtney Orsbon (@)

Find more methods integration at the Ross Lab website, and read the pub at The Anatomical Record!

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