Knee Modifications | Tutorial 4 Beginner Oops! You don't have permission to view this page! Make sure you're logged in and try again, or contact support. ALIGNMENT NOTES +Follow the tutorial and feel free to use these modifications during all MerryBody classes.BABY ON BOARD? +Once you’ve been given the go ahead from your medical practitioner to exercise, here are the modifications to keep in mind when pregnant. If anything ever feels too much or uncomfortable, please stop your MerryBody class. This tutorial is perfect for you and bubba.