The cause of backache is the lack of waist strength, and the correct action can certainly ensure that you will not be injured. However, under high-intensity practice, it is difficult to ensure that the tired waist can continue to perform correct movements, and once an accident occurs, it will hurt the waist.

From the perspective of safety and balance training, we should first exercise the weak waist and abdomen, mainly by pulling hard and the goat standing up and swallowing, or doing core exercises such as Pilates.