Moffatt R J, Stamford B A
Med Sci Sports. 1978 Spring;10(1):27-31.
The present investigation determined the efficacy of progressively increased pedalling rate (P) or resistance (R) during assessment of maximal oxygen uptake (VO2max) on the bicycle ergometer. Twenty male and nine female university students performed randomly assigned discontinuous P and R maximal stress tests. Male subjects immedicately repeated each test within the same experimental session. Regardless of test protocol, VO2max was quite similar. Magnitude estimates of perceived effort were significantly lower for male subjects during P testing (P less than .05) and 80% of male subjects preferred P testing. Conversely, magnitude estimates were significantly lower for female subjects for R testing (P LESS THAN .05). P testing could be reliably repeated within the same experimental session whereas with R testing VO2max was significantly reduced (P LESS THAN .05). It was concluded that progressively increased pedalling rate offers a physiologically acceptable means to VO2max assessment on the bicycle ergometer for males and females. In addition, progressively increased pedalling rate offers a perceptually preferable means to VO2max assessment for males but not for females.
本研究确定了在自行车测力计上评估最大摄氧量（VO2max）期间，逐渐增加蹬踏速率（P）或阻力（R）的效果。29名男女大学生（20名男性和9名女性）进行了随机分配的不连续P和R最大应激测试。男性受试者在同一实验环节内立即重复每项测试。无论测试方案如何，VO2max都非常相似。在P测试期间，男性受试者的主观用力程度估计值显著较低（P小于0.05），并且80%的男性受试者更喜欢P测试。相反，在R测试中，女性受试者的主观用力程度估计值显著较低（P小于0.05）。P测试可以在同一实验环节内可靠地重复，而对于R测试，VO2max显著降低（P小于0.05）。得出的结论是，逐渐增加蹬踏速率为在自行车测力计上评估男性和女性的VO2max提供了一种生理上可接受的方法。此外，逐渐增加蹬踏速率为男性评估VO2max提供了一种在感知上更可取的方法，但对女性则不然。
