韩国的跆拳道少年队。
少年宫周末为儿童开设了多门课程，有击剑、跆拳道、舞蹈和烹饪。
The center conducts several weekend courses for children such as fencing, taekwondo, dancing and cooking. (REUTERS/Sheng Li)
方法：对30名青少年跆拳道运动员安静状态下心电图检出结果进行统计分析。
Methods: to conduct statistical analysis of the ECG detection results of 30 young taekwondo athletes at rest state.
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