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心脏功能与体质关系极为密切 ,心脏对身体代谢活动的细微变化能立即做出反应 ,它不仅是创造优异运动成绩的物质基础 ,而且也是衡量一个人身体素质好与坏的生理指标。本文根据动态机能指标“３０次／３０"蹲起的心率变化数据（心功指数）的探讨 ,客观评价学生的身体机能状况。１
The relationship between heart function and physical constitution is very close. The heart can react immediately to the subtle changes of body metabolic activity. It not only serves as the material basis for creating excellent athletic performance, but also as a physiological indicator to measure the physical quality of a person. This article objectively evaluates students’ bodily functions according to the discussion of the heart rate change data (cardiac function index) of 30 times / 30s of dynamic performance index. 1