Activation of subscapularis - just 1 muscle segment


I use the SpineRightArm Model and have a Glenohumeral Abduction of 90°. Firstly I calibrate and then start the InverseDynamicAnalysis.
What’s bothering me is that the rotatorcuff muscles appear magenta, despite there is no load or anything. Just an ordinary abduction :frowning: Actually they’d bulge a little, but not explode!
Another thing is that only m.subscapularis_5 is used and not the whole muscle (1-6). Why?!

Thank you for ur response and help!