Cox M H, Thomas S G, Weller I M, Corey P
Graduate Hospital Human Performance & Sports Med. Ctr., Wayne, PA 19087.
Can J Sport Sci. 1992 Mar;17(1):49-55.
A pilot study was conducted to investigate the applicability of the Canadian Aerobic Fitness Test (CAFT) for use in epidemiological studies. Thirty subjects ranging in age from 18 to 65 were evaluated for cardiorespiratory fitness on four separate visits. Protocols used included maximal treadmill testing, maximal step testing, and the CAFT. Results from these evaluations suggested that (a) habituation to the CAFT was negligible; (b) prediction of VO2max from the CAFT in fit subjects remains a problem and further equation development for this group may be necessary; (c) maximal step-test protocols do not result in unequivocal VO2max determinations and may lead to misclassification of fitness level; and (d) although the CAFT correlates highly to treadmill VO2max (r = 0.90), a relatively large standard error may result in as high as a 13% error in estimating VO2max and may lead to problems in classifying fitness in some populations (e.g., older unfit).
开展了一项试点研究，以调查加拿大有氧适能测试（CAFT）在流行病学研究中的适用性。对30名年龄在18至65岁之间的受试者进行了四次单独访视，以评估其心肺适能。所使用的方案包括最大跑步机测试、最大台阶测试和CAFT。这些评估结果表明：（a）对CAFT的适应性可忽略不计；（b）对于健康受试者，用CAFT预测最大摄氧量（VO2max）仍然存在问题，可能需要为该组进一步制定公式；（c）最大台阶测试方案不能明确测定VO2max，可能导致适能水平的错误分类；（d）尽管CAFT与跑步机VO2max高度相关（r = 0.90），但相对较大的标准误差可能导致估计VO2max时出现高达13%的误差，并可能在对某些人群（如年老且不健康者）的适能分类中产生问题。
