场上不同位置的青少年男子足球运动员特征性运动自信心水平没有差异；
There was no significant difference for junior male soccer players at different position on field.
盘前移位组与盘正常组的髁突位置差异无显著性。
No significant difference between disc shift group and disc normal group was found.
盘前移位组与盘正常组的髁突位置差异无显著性。
No significant difference between disc shift group and disc normal group was found.
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