LONG-TERM FOLLOW-UP OF POST OBESE BLACK AND WHITE WOMEN

这个子项目是许多研究子项目中利用 资源由NIH/NCRR资助的中心拨款提供。子项目和 调查员(PI)可能从NIH的另一个来源获得了主要资金， 并因此可以在其他清晰的条目中表示。列出的机构是 该中心不一定是调查人员的机构。 尽管完成这项研究的受试者太少，无法对结果做出任何明确的评估，但初步分析显示，被分配到运动训练(有氧和阻力练习者)的女性的体力活动水平比研究开始时高出25%，而被分配不锻炼的一组女性的体力活动没有变化。此外，在完成研究的女性中，有氧训练者体重减轻了3公斤，阻力训练者体重增加了5.1公斤，不锻炼组在一年的随访中体重增加了8.7公斤。这些初步结果非常暗示我们关于运动训练、自由生活体力活动和长期体重恢复的基本假设是正确的。此外，我们发现有氧训练而不是阻力训练伴随着一轮阻力训练后静息能量消耗的急剧增加(持续约24小时)。我们还发现，非洲裔美国女性在减肥后更善于保存无脂肪质量，阻力训练对非洲裔美国女性和欧洲裔美国女性都有良好的保存脂肪质量的效果。非洲裔美国女性和欧洲裔美国女性在减肥后都改善了步行和骑自行车的经济状况。

This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. Although too few subjects have finished the study to make any definitive evaluation of the results, preliminary analyses show that the women who were assigned to exercise training (aerobic and resistance exercisers) have physical activity levels 25% higher than at the beginning of the study whereas the group assigned to no exercise show no change in physical activity. In addition, of the women who have completed the study, the aerobic trainers show a 3 kg loss of weight, the resistance trainers show a 5.1 kg gain in weight, and the no exercise group show a 8.7 kg gain in weight during the one year follow-up. These preliminary results are very suggestive that our primary hypothesis concerning exercise training, free-living physical activity, and long term weight regain are correct. In addition, we have found that aerobic training but not resistance training is accompanied by an acute (lasting approximately 24 hours) increase in resting energy expenditure after a bout of resistance training. We have also found that African American women are better at preserving fat free mass following weight loss and that resistance training has a beneficial effect on preserving fat mass in both African American and European American women. Both African American and European American women improved walking economy and bicycling economy following weight loss.