Boulay M R, Serresse O, Almeras N, Tremblay A
Physical Activity Sciences Laboratory, Laval University, Ste-Foy (Québec), Canada.
Med Sci Sports Exerc. 1994 Feb;26(2):248-53. doi: 10.1249/00005768-199402000-00017.
The purpose of this study was to compare estimations of daily energy expenditure (DEE) made with a physical activity journal (PAJ) and a heart rate monitoring method (HR-VO2) in endurance athletes. Seven male cross-country skiers (21 +/- 5 yr of age, mean +/- SD) with high aerobic power (70.4 +/- 7.2 mlO2.kg-1.min-1) and eight lean and moderately active males serving as controls (22 +/- 1 yr; 50.9 +/- 9.9 mlO2.kg-1.min-1) were tested. VO2max, resting metabolic rate (RMR), energy cost of standardized activities, PAJ, HR monitoring, and food diaries for measurement of daily energy intake (DEI) were measured in October, before the specific training period. Results indicated that the skiers had a higher RMR (P < 0.05) than the controls (8.2 +/- 1.6 vs 6.9 +/- 0.6 MJ.d-1), as measured by indirect calorimetry. DEE estimates made with the PAJ and the HR-VO2 methods were similar in the controls subjects but the HR-VO2 method yielded significantly higher results in the skiers (17.0 +/- 4.0 vs 13.1 +/- 2.1 MJ.d-1). DEI measurements were similar to HR-VO2 DEE in both groups. Thus, it appears that the PAJ, which was established with a sedentary population, underestimated DEE in trained cross-country skiers. Thus, the physical activity status of subjects has to be investigated before using a physical activity diary.
本研究的目的是比较耐力运动员使用体力活动日志（PAJ）和心率监测方法（HR-VO2）对每日能量消耗（DEE）的估计。测试了7名具有高有氧能力（70.4±7.2 mlO2·kg-1·min-1）的男性越野滑雪运动员（年龄21±5岁，平均值±标准差）和8名瘦且中度活跃的男性作为对照（22±1岁；50.9±9.9 mlO2·kg-1·min-1）。在特定训练期开始前的10月，测量了最大摄氧量（VO2max）、静息代谢率（RMR）、标准化活动的能量消耗、PAJ、心率监测以及用于测量每日能量摄入（DEI）的食物日记。结果表明，通过间接测热法测量，滑雪运动员的RMR高于对照组（P<0.05）（8.2±1.6 vs 6.9±0.6 MJ·d-1）。在对照组中，使用PAJ和HR-VO2方法对DEE的估计相似，但在滑雪运动员中，HR-VO2方法得出的结果显著更高（17.0±4.0 vs 13.1±2.1 MJ·d-1）。两组的DEI测量结果与HR-VO2 DEE相似。因此，对于久坐人群建立的PAJ似乎低估了训练有素的越野滑雪运动员的DEE。因此，在使用体力活动日记之前，必须调查受试者的体力活动状况。
