解析:571. c- If the latissimus dorsI is engaged to begin the lowering phase, anterior containment is provided to heip stabilize the shoulder and precipitate greater force production during the lifting phase. Trainers should therefore coach clients to engage the latissimus dorsi curing the lowering phase and not simply yield to gravity如果背阔肌开始下降阶段,则提供前围带以帮助稳定肩部,并在提升阶段产生更大的力量。因此,培训师应指导客户使用背阔肌治疗下降阶段,而不是简单地屈服于重力