儿童青少年生长发育水平稳步提高。
The growth of children and teenagers has been steadily improved.
结论在男性青少年生长发育过程中，IGF - 1和t同时起到了促进生长作用。
Conclusion IGF 1 and t have the same impact of somatotrophic during the growth in adolescents.
结合青少年生长发育特征，阐述了青少年铅球运动员专项身体训练和专项技术训练的特点，为青少年铅球运动员的课余训练提供参考。
According to the growing characteristics of teen-agers, the author expatiates on the characteristics of special training for juvenile shot putters in the physical quality and the technic.
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