Chappell M A
Respir Physiol. 1984 Mar;55(3):367-77. doi: 10.1016/0034-5687(84)90058-6.
Convenient methods were developed for measuring maximum oxygen consumption (VO2 max) in untrained small mammals during treadmill exercise and cold exposure. Deer mice (Peromyscus maniculatus) were run once, for 6-min periods at velocities exceeding maximal aerobic running speed, while instantaneous oxygen consumption was measured. The VO2 max during cold exposure was determined using high wind speeds to increase heat loss rates. During running, the kinetics of gas exchange were rapid and similar to those observed in larger mammals. Half-times of the VO2 and VCO2 on-responses were about 20 sec. The VO2 also increased rapidly during suddenly imposed cold stress, reaching VO2 max within 1-1.5 min. Values of VO2 max obtained during exercise were similar to the VO2 max measured during cold exposure.
开发了便捷的方法来测量未受过训练的小型哺乳动物在跑步机运动和冷暴露期间的最大耗氧量（VO2 max）。对鹿鼠（Peromyscus maniculatus）进行一次测试，以超过最大有氧跑步速度的速度跑6分钟，同时测量瞬时耗氧量。利用高风速来增加热损失率，从而测定冷暴露期间的VO2 max。在跑步过程中，气体交换动力学很快，与在较大哺乳动物中观察到的情况相似。VO2和VCO2的起始反应半衰期约为20秒。在突然施加冷应激期间，VO2也迅速增加，在1 - 1.5分钟内达到VO2 max。运动期间获得的VO2 max值与冷暴露期间测量的VO2 max值相似。
