1, dancing square dance exercise is not the longer the better.
2, because middle-aged and elderly people's muscles are more prone to strain, joints should not have too much burden, and square dance also has some high coefficient of difficulty of the action, the body swing amplitude is also relatively large, on the participant's body coordination and strength has a certain demand.
3, if the square dance time is too long, then invariably increase the risk of muscle strain, the body will also become very fatigue.