Erin Stern’s Upper-Body Training Tips Erin Stern lets you in on her secrets to sculpting a fab upper body in these awesome training vids! December 6, 2013 admin Facebook Icon Twitter Icon Email Icon Heading out the door? Read this article on the new Outside+ app available now on iOS devices for members! Download the app. Erin leaves it all in the gym with superset training Tips for building muscular shoulders Back sculpting with lat pulldowns Change your life today. Join Erin’s 90-day Challenge online course today!