Ueshima K, Saito M, Shimohara A, Sato F, Iida H, Uchimoto S, Kawaguchi M, Miyajima K, Fukami K, Sumiyoshi T
Kokyu To Junkan. 1989 May;37(5):523-7.
The Borg's indices, the rate of perceived exertion have been widely accepted to evaluate subjective symptoms semi-quantitatively in exercise tests. We applied the indices to evaluate the efficacy of our home exercise program in patients with acute myocardial infarction. Eighty-five patients were entered in our home exercise program after their discharge from the hospital. This program consisted of everyday 2 km walk-jog exercise for 1 month keeping their heart rate at 100-110/min during the exercise. Before and 1 month after their discharge, they underwent treadmill exercise tests with expiratory gas analysis and a measurement of blood lactate. In the treadmill tests performed before and after the training, VO2 and heart rate increased linearly with Borg's indices, however VE and blood lactate had disproportionate increases after Borg's 13 which is considered to be the anaerobic threshold (AT). In fact, AT measured individually by expiratory gas analysis and blood lactate, appeared at Borg's 13 in 53% of the patients. After 1 month physical training, VO2 and heart rate significantly increased at the same Borg's indices, but there was no significant changes in blood lactate at the same Borg's score before and after the training. These results suggest that, in patients with acute myocardial infarction, exercise performance significantly increased at any score of subjective symptoms and that Borg's indices may reflect the blood lactate levels. It is concluded that Borg's indices, closely related to the dynamics of blood lactate, are not only useful in quantifying subjective symptoms but also to estimate the efficacy of physical training.
博格指数，即主观用力程度分级，已被广泛用于在运动测试中半定量评估主观症状。我们应用该指数来评估家庭运动计划对急性心肌梗死患者的疗效。85名患者出院后参加了我们的家庭运动计划。该计划包括为期1个月的每天2公里步行 - 慢跑运动，运动期间将心率保持在100 - 110次/分钟。在出院前和出院后1个月，他们进行了带呼气气体分析和血乳酸测量的跑步机运动测试。在训练前后进行的跑步机测试中，VO₂和心率随博格指数呈线性增加，然而在博格13级（被认为是无氧阈[AT]）之后，VE和血乳酸有不成比例的增加。事实上，通过呼气气体分析和血乳酸单独测量的AT，在53%的患者中出现在博格13级。经过1个月的体育训练后，在相同的博格指数下VO₂和心率显著增加，但在相同的博格评分下训练前后血乳酸没有显著变化。这些结果表明，在急性心肌梗死患者中，在任何主观症状评分下运动表现都显著提高，并且博格指数可能反映血乳酸水平。结论是，与血乳酸动态密切相关的博格指数不仅有助于量化主观症状，还可用于评估体育训练的疗效。
