After early to the square no less than fifteen minutes. Do the limbs of the activities of the preparation, a good first activity to open their two arms, knees, bilateral waist, front and back waist, ankle, wrist and even the neck should also be more rotation, activity. Otherwise start practicing square dance, there will be uncomfortable situation occurs.
If you do a good job of 'warming up' every day, and your knees still feel uncomfortable, you may want to consider switching to a different fitness program.
You should also consciously avoid movements that involve twisting your upper body and straining your knees. If you have to do it, you should also pay attention to the safety of your knees.