This is a basic shoulder mass - builder that allows you to target any existing muscle imbalances between your left and right side of the body when pressing. (fitnessandpower.com)
As this region is known to contain important fibers providing motor stimulation to the typically dominant right side of the body, the results may provide a correlation between impairments in fine motor functioning and inability to return to work. (sciencedaily.com)
Plate A also shows almost the entire right side of the body and several parts of the left side of the body that are missing on plate B. Only the distal part of the left leg is missing on both plates. (journals.plos.org)