Univ Lille Nord de France, 59000 Lille, France.
Eur J Appl Physiol. 2012 Jun;112(6):2303-12. doi: 10.1007/s00421-011-2197-4. Epub 2011 Oct 19.
The purpose of this study was to evaluate the validity of the estimated time limit scale (ETL), which deals with a subjective prediction of how long the current exercise intensity can be maintained, for regulating exercise intensity using typical estimation-production procedure. Thirty-six male athletes performed a continuous incremental test and two discontinuous tests with randomized workloads (estimation tests at 65, 75, 85 and 95% of the maximal power output, and production tests: subjects have to use the ETL values which were collected for each power during the estimation test in order to manually product the corresponding workload). The intraclass correlation coefficient for the power output between estimation and production tests is good for exercises at 75, 85 and 95% MAP (0.81, 0.85 and 0.96, respectively). Moreover, mean differences both for power output and cardiorespiratory data were not significantly different between estimation and production tests for exercises at 85 and 95% MAP. Consequently, the validity to prescribe an exercise intensity from the ETL scale is attested in these athletes particularly for high exercise intensities on cycloergometer.
本研究旨在评估预计时间限制量表（ETL）的有效性，该量表涉及对当前运动强度可以维持多长时间的主观预测，用于使用典型的估计-产生程序来调节运动强度。36 名男性运动员进行了连续递增测试和两次随机工作量的不连续测试（在最大输出功率的 65%、75%、85%和 95%处进行估计测试，以及生产测试：受试者必须使用在估计测试期间为每个功率收集的 ETL 值，以便手动产生相应的工作量）。在估计和生产测试之间，对于 75%、85%和 95%MAP 的功率输出，ICC 为良好（分别为 0.81、0.85 和 0.96）。此外，对于 85%和 95%MAP 的运动，在功率输出和心肺数据方面，估计测试和生产测试之间的平均差异没有显著差异。因此，在这些运动员中，尤其是在功率自行车上进行高强度运动时，从 ETL 量表规定运动强度的有效性得到了证明。
