Diaz F J, Hagan R D, Wright J E, Horvath S M
Med Sci Sports. 1978 Fall;10(3):214-7.
Maximal aerobic power tests on a treadmill and on a bicycle ergometer while sitting upright and in a low-sitting position were performed by seven males and five females. Treadmill max Vo2 for men and women combined was 4.0 and 11.2% higher compared to upright and low-sitting cycling, respectively. Maximal pulmonary ventilation, related respiratory measures, and heart rate were similar in all three tests. Submaximal work performed in the two cycling positions resulted in similar levels of oxygen uptake, ventilation, and heart rate. Work loads of 360 and 720 Kpm/min were performed by males with oxygen uptakes of 14.7 and 25.2 ml/kg . min, which corresponded to 30 and 52% of their upright-sitting maximal oxygen uptakes and to 33 and 55% of their low-sitting aerobic capacities respectively. Oxygen uptakes for work loads of 360 and 540 Kpm/min by females were 15.6 and 21.6 ml/kg . min, being equivalent to 42 and 58% of the maximal oxygen uptake in the upright-sitting, and to 43 and 60% in the low-sitting ergometer position, respectively.
七名男性和五名女性在跑步机上以及在坐直和低位坐姿的自行车测力计上进行了最大有氧功率测试。男性和女性在跑步机上的最大摄氧量（Vo2）与坐直和低位坐姿骑自行车相比，分别高出4.0%和11.2%。在所有三项测试中，最大肺通气量、相关呼吸指标和心率相似。在两个骑自行车姿势下进行的次最大工作量导致相似水平的摄氧量、通气量和心率。男性以360和720千帕米/分钟的工作量进行测试，摄氧量分别为14.7和25.2毫升/千克·分钟，分别相当于他们坐直时最大摄氧量的30%和52%，以及低位坐姿有氧能力的33%和55%。女性以360和540千帕米/分钟的工作量进行测试时，摄氧量分别为15.6和21.6毫升/千克·分钟，分别相当于坐直时最大摄氧量的42%和58%，以及低位坐姿测力计姿势下最大摄氧量的43%和60%。
