Katch V L, Sady S S, Freedson P
Med Sci Sports Exerc. 1982;14(1):21-5. doi: 10.1249/00005768-198201000-00004.
The biological variation in maximum aerobic power (V O2max) was examined in four trained females and one trained male. An average of 8-20 repeat VO2max treadmill tests over a 2-4 wk period were performed on each subject (80 total tests). Biological variation (Si) in VO2max was computed as the standard deviation for the VO2max values for each individual, after subtracting net technological error (Se). Technological error was computed for each piece of equipment as the standard deviation of multiple trials. Results revealed that Si + Se amounted to +/- 5.6%. Biological variability accounted for 90% or more of this variability, while technological error accounted for less than 10%. In light of the magnitude of biological variation for VO2max, the necessity for securing control data when attempting to study training effects is pointed out.
对四名受过训练的女性和一名受过训练的男性的最大有氧能力（V O2max）的生物学变异进行了研究。在2至4周的时间内，对每个受试者平均进行了8至20次重复的V O2max跑步机测试（共80次测试）。在减去净技术误差（Se）后，将V O2max的生物学变异（Si）计算为每个个体V O2max值的标准差。针对每台设备，将技术误差计算为多次试验的标准差。结果显示，Si + Se总计为±5.6%。生物学变异占该变异的90%或更多，而技术误差占比不到10%。鉴于V O2max生物学变异的幅度，指出了在试图研究训练效果时获取对照数据的必要性。
