Development of a non-invasive physical fitness index which can be a simple alternative to anaerobic threshold.

为了建立一种非侵入性和传统的身体健康指数，对65名年轻人进行了增量式测力仪运动测试。在实验过程中，同时监测心肺参数和血乳酸浓度。从获得的结果中，可以清楚地表明，无氧阈值（at）或血乳酸阈值（LT）出现时的工作量值可以从非侵入性获得的心血管反应的拐点估计出来，这表明该拐点可以作为at或LT的常规替代方案。

To develop a non-invasive and conventional physical fitness index, incremental ergometer exercise tests were carried out in 65 young adults. During the experiments cardiopulmonary parameters and blood lactate concentrations were simultaneously monitored. From the results obtained, it was clearly demonstrated that the value the work load at which the anaerobic threshold(AT) or the blood lactate threshold(LT) appeared could be estimated from the inflection point of non-invasively obtained cardiovascular responses, suggesting availability of this inflection point as a conventional alternative for AT or LT.