EXERCISE INTENSITY EFFECTS ON WEIGHT AND FAT LOSS IN MIDDLE AGED ADULTS

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。 在美国，肥胖症正在达到流行的程度，然而，有一小部分人能够通过限制卡路里和锻炼相结合的方式减肥并保持减肥。在久坐状态下喂养的荷尔蒙和生理控制已经被描述。不太为人所知的是，运动期间代谢燃料的消耗如何影响这些控制。更好地了解代谢能量消耗对饥饿的影响和运动强度对食欲抑制的影响具有重要的理论和应用意义。假设在高强度运动期间和之后，高强度运动的胃口将受到抑制；与久坐状态相比，低强度运动后的饥饿评级不会增加。其具体目的是比较不同强度运动产生的同等能量不足如何影响超重年轻女性的食欲以及荷尔蒙和新陈代谢反应的心理物理评级，以及与久坐状态的影响。这项研究的发现将为继续研究荷尔蒙和代谢控制喂食及其与运动的关系提供更多信息。此外，研究结果可以扩展对能量调节的理论理解，并为个人改进减肥策略提供洞察力。

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. Obesity in the United States is reaching epidemic proportions, however there are a small number of individuals who are able to lose weight and maintain the loss through a combination of caloric restriction and exercise. Hormonal and physiological controls of feeding under sedentary conditions have been described. What is less well known is how the expenditure of metabolic fuels during exercise affects these controls. A better understanding of the impact of the metabolic energy expenditure on hunger and of exercise intensity on appetite suppression is of great theoretical and applied importance. It is hypothesize that during and following high-intensity exercise appetite will be suppressed; and hunger ratings will not be increased following low-intensity exercise compared to a sedentary state. The specific aim is to compare how equal energy deficit incurred through exercise of varying intensities affects psychophysical ratings of appetite, as well as hormonal and metabolic reflexes, to a sedentary state, in overweight, young women. The findings from this study will provide additional information for continued work involving hormonal and metabolic controls of feeding and their relation to exercise. Additionally, results could extend theoretical understanding of energy regulation and provide insight for improved weight-loss strategies for individuals.