Epicondylar markers could be placed either manually or automatically by a computer algorithm that selected the most lateral or most medial osseous prominence of the distal part of the humerus.
We all know that osteoporosis is characterized by decreased bone mineral density and increased risk of fractures, especially at the hip, the spine, humerus and wrist.
When she pushes herself up, her pectoralis major is contracting, pulling its insertion point — which in this case is the top of her humerus — toward the immobile origin, which is her sternum.