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以中长跑选手及普通大学生为对照，对优秀投掷运动员安静状态、运动状态及恢复期进行ＵＣＧ测量。结果表明：优秀投掷运动员具有左室腔扩大和心肌收缩能力强的特点。
Taking the long-distance runners and ordinary college students as the control, UCG measurement was performed on the quiet state, exercise state and convalescence of excellent throwing athletes. The results show that excellent throwing athletes have the characteristics of enlarged left ventricular cavity and strong myocardial contractility.