Bovens A M, van Baak M A, Vrencken J G, Wijnen J A, Verstappen F T
Department of Human Biology and Movement Sciences, State University of Limburg, Maastricht, The Netherlands.
Eur J Appl Physiol Occup Physiol. 1993;66(3):281-4. doi: 10.1007/BF00235107.
The purpose of this study was to investigate criteria for maximal effort in middle-aged men and women undertaking a maximal exercise test until they were exhausted if no measurements of oxygen uptake are made. A large group of 2164 men and 975 women, all active in sports and aged between 40 and 65 years, volunteered for a medical examination including a progressive exercise test to exhaustion on a cycle ergometer. In the 3rd min of recovery a venous blood sample was taken to determine the plasma lactate concentration ([la-]p,3 min). Lactate concentration and maximal heart rate (fc,max) were lower in the women than in the men (P < 0.001). Multiple regression analyses were performed to assess the contribution of sex to [la-]p,3 min, independent of age and fc,max. It was found that [la-]p,3 min was about 2.5 mmol.l-1 lower in women than in men of the same age and fc,max. In our population 88% of the men and 85% of the women met a combination of the following fc,max and [la-]p,3 min criteria: fc,max equal to or greater than 220 minus age beats.min-1 and/or [la-]p,3 min equal to or greater than 8 mmol.l-1 in the men and fc,max equal to or greater than 220 minus age beats.min-1 and/or [la-]p,3 min equal to or greater than 5.5 mmol.l-1 in the women.
本研究的目的是调查在不进行摄氧量测量的情况下，进行最大运动测试直至精疲力竭的中年男性和女性的最大运动标准。一大组共2164名男性和975名女性，年龄在40至65岁之间，均活跃于体育运动，自愿参加包括在自行车测力计上进行递增运动测试直至精疲力竭的医学检查。在恢复的第3分钟采集静脉血样以测定血浆乳酸浓度（[乳酸]p，3分钟）。女性的乳酸浓度和最大心率（fc，max）低于男性（P<0.001）。进行多元回归分析以评估性别对[乳酸]p，3分钟的贡献，独立于年龄和fc，max。结果发现，在相同年龄和fc，max的情况下，女性的[乳酸]p，3分钟比男性低约2.5 mmol·l-1。在我们的研究对象中，88%的男性和85%的女性符合以下fc，max和[乳酸]p，3分钟标准的组合：男性fc，max等于或大于220减去年龄（次·分钟-1）和/或[乳酸]p，3分钟等于或大于8 mmol·l-1，女性fc，max等于或大于220减去年龄（次·分钟-1）和/或[乳酸]p，3分钟等于或大于5.5 mmol·l-1。
