Figure 5

Muscle shape changes. Transverse US image used to obtain muscleheight (h) and muscle base (b) to calculate the change in shape of the muscle CSA. The olecranon ulna is indicated by the white arrows.
Muscle shape changes. Transverse US image used to obtain muscleheight (h) and muscle base (b) to calculate the change in shape of the muscle CSA. The olecranon ulna is indicated by the white arrows.