One should be comfortable in small, less challenging backbends before emphasizing bigger, more challenging ones.
小幅度、挑战性小的后弯，往往会比大幅度、挑战性大的后弯更容易让人感觉舒适。
2
Twists can prepare the trunk for backbends and forward bends, as well as balance the body after backbends and forward bends.
扭转体式能够活动躯干，为后弯与前屈做好准备，同时也能在后弯与前屈之后平衡身体。
3
And strengthening the muscles around the S-I joint so as to prevent future problems can be accomplished by practicing simple backbends and standing poses.