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对９６名１４～１７岁学生进行了２个月的钙干预试验。在实验前后进行体格指标、血清及尿电解质、血浆维生素Ｄ３、血小板内Ｃａ（２＋）及Ｍｇ（２＋）的测定。结果表明：青少年血压与皮脂厚度、脉率、血小板内Ｃａ（２＋）及尿Ｃａ（２＋）呈显著正相关关系（ｒ＝０．２７～０．３３，Ｐ＜０．０５）；血压下降与血浆维生素Ｄ３、肾排Ｎａ＋能力呈负相关关系（ｒ＝－０．４２～－０．４４．Ｐ＜０．０５）；血小板内Ｃａ（２＋）与舒张压下降，尿Ｎａ＋与有家族史组血压下降关系密切。提示钙负荷对青少年有显著的降压作用，但降压作用具有选择性。
Ninety-four 14-17-year-old students underwent calcium intervention for two months. Physical indicators, serum and urine electrolytes, plasma vitamin D3, platelet Ca (2+) and Mg (2+) were measured before and after the experiment. The results showed that there was a significant positive correlation between adolescent blood pressure and sebum thickness, pulse rate, platelet Ca (2+) and urinary Ca (2+) (r = 0.27-0.33, P <0.05) There was a negative correlation between plasma vitamin D3 and renal tubule Na + (r = -0.42 ~ -0.44.P <0.05), platelet Ca (2+) and diastolic blood pressure, urinary Na + and family history Blood pressure is closely related. Tip calcium load has a significant antihypertensive effect in adolescents, but the antihypertensive effect is selective.