Do African-American and Caucasian overweight women differ in oxygen consumption during fixed periods of exercise?
Do African-American and Caucasian overweight women differ in oxygen consumption during fixed periods of exercise?
复制标题
非裔美国人和白人超重女性在固定运动时间内的耗氧量是否存在差异？
DOI：
10.1038/sj.ijo.0801632
复制
发表时间：
2001
期刊：
影响因子：
--
通讯作者：
Wing,RR
中科院分区：
文献类型：
--
作者：
Jakicic,JM;Lang,W;Wing,RR
目的：研究在固定的运动时间内是否存在耗氧量的种族差异。设计：横断面。受试者：27名非洲裔美国人和120名白人超重成年女性（体重指数= 32.8±4.1 kg/m2，年龄= 36.7±5.6岁）。在分级运动试验的四个阶段进行耗氧量测量，并通过双能X射线吸收法评估身体成分。超重的非裔美国妇女和白人妇女的绝对耗氧量或经体重或脂肪校正的耗氧量没有显著差异。自由质量在四个级别的次最大分级运动test.CONCLUSION：从这项研究的结果表明，非洲裔美国人和高加索妇女不不同的能量消耗在固定的工作量的运动，这表明这可能不会有助于在这两个种族的妇女之间的能量平衡和体重调节的差异。
OBJECTIVE: To examine whether there are ethnic differences in oxygen consumption during fixed periods of exercise.DESIGN: Cross-sectional.SUBJECTS: Twenty-seven African-American and 120 Caucasian overweight adult women (body mass index= 32.8±4.1 kg/m 2, age= 36.7±5.6 y) prior to initiating a weight loss program.MEASUREMENTS: Measurement of oxygen consumption occurred during four stages of a graded exercise test, with body composition assessed by dual-energy X-ray absorptiometry.RESULTS: There were no significant differences between overweight African-American and Caucasian women for absolute oxygen consumption or oxygen consumption adjusted for either body weight or fat-free mass across four levels of a submaximal graded exercise test.CONCLUSION: The results from this study suggest that African-American and Caucasian women do not differ in energy expenditure during fixed workloads of exercise, suggesting that this may not contribute to differences in energy balance and body weight regulation between women in these two ethnic groups.