Davis H A, Gass G C, Eager D, Bassett J
Eur J Appl Physiol Occup Physiol. 1981;47(2):133-40. doi: 10.1007/BF00421665.
The oxygen deficit and debt have conventionally been determined during exercise at constant work rates. During this study these were calculated during and after exercise at progressively incremented work rates. Five men performed two successive incremental exercise tests to exhaustion on an electronically braked cycle ergometer. The two tests were separated by a 5 min rest period. The oxygen deficit was defined as the sum of the minute differences between the measured oxygen uptake and the oxygen uptake occurring during steady state work at that same rate. The oxygen deficit was quantified for the work periods before and after the anaerobic threshold (AT) as determined from respiratory gas analysis (ATR). The measured deficit for the period before the ATR was smaller than the deficit measured in the same subjects during steady state work at low intensity (below the ATR) and was also less than the rapid component of the oxygen repayment as determined after the second incremental test. It was concluded that this test could be used for the determination of anaerobic capacity as represented by the total oxygen deficit (within motivational limits), but that the lactacid and alactacid components of the deficit could not be differentiated. A considerable portion of the alactacid component of the deficit was incurred after the onset of the ATR.
传统上，氧亏和氧债是在恒定工作速率的运动过程中测定的。在本研究中，这些指标是在运动期间及运动后工作速率逐渐增加的情况下计算得出的。五名男性在电动刹车式自行车测力计上进行了两次连续的递增运动测试，直至精疲力竭。两次测试之间间隔5分钟休息时间。氧亏定义为测得的摄氧量与以相同速率在稳定状态工作期间的摄氧量之间每分钟差值的总和。根据呼吸气体分析确定无氧阈（AT），并对无氧阈前后的工作时段进行氧亏量化（ATR）。在无氧阈之前时段测得的氧亏小于相同受试者在低强度（低于无氧阈）稳定状态工作期间测得的氧亏，也小于第二次递增测试后确定的氧债快速成分。得出的结论是，该测试可用于测定以总氧亏表示的无氧能力（在动机限度内），但无法区分氧亏中的乳酸和非乳酸成分。氧亏中非乳酸成分的相当一部分是在无氧阈开始后产生的。
