Robert Kertzer Exercise Physiology Laboratory, Department of Kinesiology, University of New Hampshire, Durham, New Hampshire 03824, USA.
J Sports Sci. 2011 Aug;29(11):1175-82. doi: 10.1080/02640414.2011.585165. Epub 2011 Jul 21.
In this study, we wished to determine the relationship between the Talk Test physiological and perceptual indicators and variables measured at the ventilatory and lactate thresholds, and if the Talk Test indicators were associated with a typical exercise prescription. Fifteen participants (13 males and 2 females; age 18-35 years) underwent a treadmill lactate threshold test followed by a VO2max (maximal oxygen consumption) test in which the ventilatory threshold was determined. On a separate day, a Talk Test was administered in which participants read a passage during exercise and rated speaking comfort: "comfortable" (+Talk Test), "not sure" (+/-Talk Test), or "not able to speak comfortably" (-Talk Test). Exercise prescriptions based on 65% and 80% of heart rate reserve and VO2 reserve were determined. Lactate threshold values were significantly higher than those at the ventilatory threshold (P < 0.05). The heart rate, VO2, and %VO2max recorded at all levels of the Talk Test were significantly higher than similar measurements recorded at the ventilatory threshold (P < 0.05). Lactate threshold measurements were similar to the +Talk Test and +/-Talk Test. Participants were exercising at 64 ± 5% VO2max, 82 ± 7% maximal heart rate, and 12 ± 2% RPE (rating of perceived exertion) at the +Talk Test, and 71 ± 6% VO2max, 90 ± 6% maximal heart rate, and 15 ± 2% RPE at the +/-Talk Test, with all values being within ACSM exercise intensity guidelines. Therefore, the Talk Test can be used in this population to prescribe exercise, and Talk Test data are more strongly related to physiological and perceptual variables corresponding to the lactate threshold than to the ventilatory threshold.
在这项研究中，我们希望确定谈话测试的生理和感知指标与呼吸和乳酸阈测量值之间的关系，以及谈话测试指标是否与典型的运动处方有关。15 名参与者（13 名男性和 2 名女性；年龄 18-35 岁）接受了跑步机乳酸阈测试，随后进行了 VO2max（最大摄氧量）测试，其中确定了呼吸阈。在另一天，进行了谈话测试，参与者在运动时阅读一段文字并评估说话舒适度：“舒适”（+谈话测试）、“不确定”（+/-谈话测试）或“无法舒适地说话”（-谈话测试）。根据心率储备和 VO2 储备的 65%和 80%确定运动处方。乳酸阈值明显高于呼吸阈（P < 0.05）。在谈话测试的所有水平上记录的心率、VO2 和 %VO2max 均明显高于呼吸阈时记录的相似测量值（P < 0.05）。乳酸阈测量值与+谈话测试和 +/-谈话测试相似。在+谈话测试时，参与者的运动强度为 64 ± 5% VO2max、82 ± 7%最大心率和 12 ± 2% RPE（感知用力评分），在 +/-谈话测试时为 71 ± 6% VO2max、90 ± 6%最大心率和 15 ± 2% RPE，所有值均在 ACSM 运动强度指南范围内。因此，在该人群中可以使用谈话测试来规定运动，并且谈话测试数据与乳酸阈对应的生理和感知变量的关系比与呼吸阈的关系更密切。
