Stamford B A
J Appl Physiol. 1975 Sep;39(3):386-9. doi: 10.1152/jappl.1975.39.3.386.
Three groups of male subjects, average fitness (AF, N = 12), high fitness (HF, N = 7) and highly fit competitive race walkers (CRW, N = 3) performed maximal treadmill tests walking at 3.5 and 4.5 mph and running at 4.5, 5.5, 7.0, and 8.5 mph. In addition, the HF group performed a running test at 10.0 mph and the CRW group performed a walking test at 5.5 mph. All maximal oxygen uptake (VO2 max) tests with the exception of the 3.5 mph walking test (modified Balke test) were discontinuous in nature. VO2 max obtained from walking tests was similar regardless of speed within each group. Walking VO2 max was significantly lower than running VO2 max which was found to be similar over a speed range of 4.5 to 8.5 mph in the AF group. Running at 4.5 mph (HF group) and 4.5 and 5.5 mph (CRW group) resulted in lower VO2 max levels than running at speeds greater than or equal to 7.0 mph. Associated physiological variables (heart rate, ventilation, and respiratory exchange ratio) did not demonstrate a discernable pattern with reference to mode of locomotion (walking versus running) or speed. It was concluded that VO2 max elicited during walking is independent of speed and less than VO2 max obtained during running. Running VO2 max was interrelated with speed of running and state of training.
三组男性受试者，平均健康水平组（AF，N = 12）、高健康水平组（HF，N = 7）和非常健康的竞技竞走运动员组（CRW，N = 3）进行了最大跑步机测试，分别以每小时3.5英里和4.5英里的速度行走，以及以每小时4.5英里、5.5英里、7.0英里和8.5英里的速度跑步。此外，HF组以每小时10.0英里的速度进行了跑步测试，CRW组以每小时5.5英里的速度进行了行走测试。除了3.5英里/小时的行走测试（改良巴尔克测试）外，所有最大摄氧量（VO2 max）测试本质上都是不连续的。每组内无论速度如何，通过行走测试获得的VO2 max相似。行走时的VO2 max显著低于跑步时的VO2 max，在AF组中，跑步时的VO2 max在4.5至8.5英里/小时的速度范围内相似。HF组以每小时4.5英里的速度跑步以及CRW组以每小时4.5英里和5.5英里的速度跑步时，VO2 max水平低于以大于或等于每小时7.0英里的速度跑步时的VO2 max水平。相关生理变量（心率、通气量和呼吸交换率）在运动方式（行走与跑步）或速度方面未表现出明显模式。得出的结论是，行走时引发的VO2 max与速度无关，且低于跑步时获得的VO2 max。跑步时的VO2 max与跑步速度和训练状态相关。
