Department of Exercise and Sport Science, University of Wisconsin-La Crosse, La Crosse, Wisconsin, USA.
J Strength Cond Res. 2011 Mar;25(3):590-6. doi: 10.1519/JSC.0b013e318207ed53.
Traditionally defined in terms of %maximal heart rate (%HRmax) or %maximal metabolic equivalents, the process of exercise prescription is still difficult and individually imprecise. An alternative, and simpler, method is to define exercise intensity in terms of the Talk Test, which may be a surrogate for ventilatory threshold and more consistent with contemporary recommendations for index training intensity in well-trained and athletic individuals. This study was designed to determine how much of a reduction in the absolute exercise intensity from those observed during incremental exercise testing was necessary to allow for comfortable speech during exercise training. Fourteen well-trained (5-7 h·wk(-1)) individuals performed 2 incremental exercise tests (to evaluate reproducibility) and 3 steady-state training bouts (40 minutes), based on the stage before the last positive (LP) stage of the Talk Test (LP-1), the LP stage, and the equivocal (EQ) stage. The LP-1 and LP runs resulted in %HRmax and rating of perceived exertion (RPE) values within the recommended range for exercise training, the EQ run in an unacceptably high %HRmax and RPE. Most subjects could still speak comfortably during the LP-1 and LP stages, and no subject could speak comfortably during the EQ stage. The HR (r = 0.84), RPE (r = 0.81), and Talk Test (r = 0.71) responses during paired incremental tests were well correlated. The results of this test suggest that the absolute exercise intensity during the LP-1 and LP stages of incremental exercise tests with the Talk Test may produce steady-state exercise responses appropriate for training in well-trained and athletic individuals and that the reproducibility of the Talk Test is satisfactory.
传统上，运动处方是根据最大心率（%HRmax）或最大代谢当量（%METs）来定义的，但这一过程仍然很困难，而且因人而异不够精确。另一种更简单的方法是根据谈话测试来定义运动强度，这可以替代呼吸阈，并且与当代对训练有素和运动型个体的训练强度指标的建议更一致。本研究旨在确定在递增运动测试中观察到的绝对运动强度降低多少，才能在运动训练中允许舒适地说话。14 名训练有素的个体（每周 5-7 小时）进行了 2 次递增运动测试（评估可重复性）和 3 次稳态训练回合（40 分钟），测试基于谈话测试最后一个阳性（LP）阶段之前的阶段（LP-1）、LP 阶段和不确定（EQ）阶段。LP-1 和 LP 运行的结果是 %HRmax 和感知用力等级（RPE）值在运动训练的推荐范围内，EQ 运行的结果是不可接受的高 %HRmax 和 RPE。大多数受试者在 LP-1 和 LP 阶段仍能舒适地说话，而没有受试者在 EQ 阶段能舒适地说话。配对递增测试中 HR（r = 0.84）、RPE（r = 0.81）和谈话测试（r = 0.71）的反应高度相关。这项测试的结果表明，在递增运动测试中，谈话测试的 LP-1 和 LP 阶段的绝对运动强度可能产生适合训练有素和运动型个体的稳态运动反应，并且谈话测试的可重复性是令人满意的。
