Please note that when the parameter UseCoupledJointLimits is ON, this overrides the Joint Range of Motion (RoM) limitations for the shoulder and clavicle joints when necessary. In most cases, this option provides more realistic predicted results and why the option is ON (True) by default.
In situations where end-users wish to strictly enforce RoM limitations for the shoulder and clavicle, the option can be turned OFF as follows:
Select the avatar
Open the Expert Pane window (WINDOWS -> EXPERT PANE)
Expand the ANTHROPOMETRY tab located at the top of the Expert Pane window
Double-Click on the UseCoupledJointLimits parameter (the second to the last option in the Anthropometry tab) to toggle it ON or OFF (True or False, respectively)