进入青春期的中学学生形态发育指标增长明显，且近年来有生长加速的现象，各地均有不少报导，但中学生的机能发育近年来的变化状况报导较少c因此，为了解中学生机能发育近年来的变化。本文就机能指标肺活量进行对比分析，以探讨其变化规律，为进一步促进机能发育提供科学依据。 The growth of middle school students who entered puberty has seen a significant increase in morphological development indicators, and there have been reports of rapid growth in recent years. There have been many reports in various places. However, recent changes in functional development of middle school students are reported to be less. Therefore, in order to understand the development of functional development of middle school students in recent years, The change. This article compares and analyzes vital capacity vital capacity, in order to discuss its changing law, and provides scientific basis for further promoting function development.