Bouckaert J, Vrijens J, Pannier J L
Institute of Physical Education, State University of Ghent, Belgium.
J Sports Med Phys Fitness. 1990 Mar;30(1):13-8.
Plasma lactate accumulation during submaximal work and VO2peak were determined on the bicycle ergometer and on the treadmill in all round trained control subjects (n = 9) and in specifically trained athletes such as distance runners (n = 9) and racing cyclists (n = 8). Plasma lactate concentration at equivalent levels of oxygen uptake was lower during treadmill exercise than during bicycle exercise in the controls and in the runners, but the difference between the two work modalities was more pronounced in the runners. In contrast to the runners, the cyclists had a higher plasma lactate concentration on the treadmill. VO2peak values on the two ergometers were similar in the controls, while the specifically trained athletes reached the highest value when they were tested with the exercise test which is specific to the training conducted. In the runners VO2peak was 14% higher on the treadmill than on the bicycle ergometer and in the cyclists VO2peak was 11% higher on the bicycle ergometer. It is concluded that the difference in plasma lactate concentration during submaximal work and in VO2peak between treadmill and bicycle exercise can be affected by the training conditions of the subjects.
在所有全面训练的对照受试者（n = 9）以及特定训练的运动员（如长跑运动员，n = 9；赛车自行车运动员，n = 8）中，在自行车测力计和跑步机上测定了次最大运动量期间的血浆乳酸积累和最大摄氧量（VO2peak）。在对照受试者和跑步运动员中，在相同摄氧量水平下，跑步机运动时的血浆乳酸浓度低于自行车运动时，但两种运动方式之间的差异在跑步运动员中更为明显。与跑步运动员不同，自行车运动员在跑步机上的血浆乳酸浓度更高。对照受试者在两种测力计上的VO2peak值相似，而特定训练的运动员在使用与其所进行训练特定的运动测试进行检测时达到最高值。在跑步运动员中，跑步机上的VO2peak比自行车测力计上高14%，在自行车运动员中，自行车测力计上的VO2peak比跑步机上高11%。得出的结论是，次最大运动量期间血浆乳酸浓度以及跑步机和自行车运动之间VO2peak的差异可能受受试者训练条件的影响。
