心脏每次搏动输出的血量所摄取的氧量，称为氧脉搏。The oxygen pulse (VO2/HR)is a non-invasive index of the efficiency of the ability of the body to transport oxygen to the working tissue， with more fit subjects having a higher oxygen pulse as compared to less fit subjects.心脏每次搏动输出的血量所摄取的氧量称为氧脉搏，可以用每分摄氧量除以心率来计算，氧脉搏越高说明心肺功能越好，效率越高。氧脉搏可作为判定心肺功能的综合指标。