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对354名大、中学生及投掷运动员的吼声发力和无声发力的对比研究结果证明：吼声发力比无声发力效果好。分析认为，投掷发力时发出吼声是人体做憋气用力引起的；发力时发出吼声还能激动大脑皮质，挖掘肌肉潜力；吼声发力还可避免憋气发力对身体的不良影响；在某些项目中还具有战术意义。
A comparative study of the roaring power and the silent power of 354 big and middle school students and throwing athletes proves that roar power is better than silence power. Analysis that throwing force when the roar is caused by the human body to make suffocation caused by force; issued power roar can also stimulate the cerebral cortex, to tap the muscle potential; roar power but also to avoid the adverse effects of suffocation on the body; in some The project also has tactical significance.