Yoopat Pongjan, Vanwonterghem Kamiel, Louhevaara Veikko
Rangsit University-School of Science, Ergonomics Unit, Paholyotin Rd., Muang Ake, Pathumtani 12000, Thailand.
J Hum Ergol (Tokyo). 2002 Dec;31(1-2):33-40.
The aim of this pilot study was to evaluate the accuracy of a simple step-test procedure supplemented by the measurement of heart rate (HR) (STEP1) to assess the cardiorespiratory capacity i.e., maximal oxygen consumption (VO2max) of Thai workers. The subjects comprised 18 men and 17 women. Their ages varied from 19 to 20 years and all were physically active. The subjects performed three tests: a submaximal incremental cycle-ergometer (CYCLE) test supplemented by HR recordings and respiratory gas exchange, and two step-tests (STEP1 and STEP2). In the STEP1 test HR was recorded continuously. The STEP2 test included the measurements of HR and respiratory gas exchange. For the male subjects the mean difference of the estimated VO2 max values obtained from the CYCLE and STEP1 test was 15% (p < 0.05). With the female subjects the mean VO2 max values were equal when predicted according to the CYCLE and STEP1 tests. The present STEP1 test is not sufficiently accurate to predict the VO2 max of Thai men. The results of this pilot study need to be confirmed with larger samples of subjects with various backgrounds in terms of individual characteristics and occupations.
这项初步研究的目的是评估一种简单的台阶测试程序（辅以心率（HR）测量，即STEP1）评估泰国工人心肺功能（即最大摄氧量（VO2max））的准确性。受试者包括18名男性和17名女性。他们的年龄在19至20岁之间，且均有体育锻炼习惯。受试者进行了三项测试：一项次极量递增式自行车测力计（CYCLE）测试，辅以HR记录和呼吸气体交换，以及两项台阶测试（STEP1和STEP2）。在STEP1测试中持续记录HR。STEP2测试包括HR和呼吸气体交换的测量。对于男性受试者，从CYCLE和STEP1测试获得的估计VO2max值的平均差异为15%（p<0.05）。对于女性受试者，根据CYCLE和STEP1测试预测的VO2max平均值相等。目前的STEP1测试不足以准确预测泰国男性的VO2max。这项初步研究的结果需要在具有不同个体特征和职业背景的更大样本受试者中得到证实。
