I'm having a great deal of trouble teaching my body to loosen up when performing two-man excercises in seven star. Since most seven star movements gain alot of their power from spiral inertia it is very important that I keep my body loose for the majority and only briefly tense the muscles at certain points in a movement. I understand that this will take practice, persistence, perception, and patience. In addition to repetitive practice, does anyone have any positive suggestions on how to keep one's muscles relaxed throughout physical martial exercise?