Cunningham L N, Cantu R C
Fitchburg State College, MA 01420-2697.
Phys Ther. 1990 Aug;70(8):494-502. doi: 10.1093/ptj/70.8.494.
This study examined three factors related to exercise with an Exercycle, a motordriven upper and lower body exercise machine. We examined the effects of Exercycle training on peak oxygen consumption (VO2), peak heart rate, peak minute ventilation, and peak respiratory exchange ratio. We compared the physiologic responses to graded exercise between the Exercycle and a standard lower extremity (LE) cycle ergometer. We also compared the difference in training responses between male and female subjects. A 6-week cardiorespiratory training program was completed by 20 healthy untrained adults (9 male, 11 female), aged 18 to 53 years. Pretraining and posttraining testing was completed on the Exercycle and on an LE cycle ergometer using a graded protocol. Absolute peak VO2 improved by 14% for men and by 7% for women after training based on Exercycle testing and by 6% for both men and women based on LE cycle ergometer testing. The posttraining submaximal heart rates were lower at any given absolute peak VO2 level for the Exercycle but not for the LE cycle ergometer. Exercycle testing revealed a larger peak VO2 than did LE cycle ergometer testing for both genders. The Exercycle appears to be effective for promoting cardiorespiratory fitness in healthy, untrained adults. The authors found comparable submaximal physiologic responses to graded exercise between the Exercycle and the LE cycle ergometer.
本研究考察了与使用健身车（一种电动的上半身和下半身运动器械）进行锻炼相关的三个因素。我们研究了健身车训练对峰值耗氧量（VO₂）、峰值心率、峰值每分通气量和峰值呼吸交换率的影响。我们比较了健身车和标准下肢（LE）蹬车测力计在分级运动时的生理反应。我们还比较了男性和女性受试者在训练反应上的差异。20名年龄在18至53岁之间、未经训练的健康成年人（9名男性，11名女性）完成了一项为期6周的心肺训练计划。使用分级方案在健身车和LE蹬车测力计上完成了训练前和训练后的测试。根据健身车测试，训练后男性的绝对峰值VO₂提高了14%，女性提高了7%；根据LE蹬车测力计测试，男性和女性均提高了6%。在任何给定的绝对峰值VO₂水平下，健身车训练后的次最大心率较低，但LE蹬车测力计则不然。健身车测试显示，两性的峰值VO₂均高于LE蹬车测力计测试结果。健身车似乎对促进健康、未经训练的成年人的心肺健康有效。作者发现，健身车和LE蹬车测力计在分级运动时的次最大生理反应相当。
