U.S. flagAn official website of the United States government
                    Here's how you know **Official websites use .gov**
                            
                            A **.gov** website belongs to an official government organization in the United States.
 **Secure .gov websites use HTTPS**
                            
                            A **lock** (                            
                              A locked padlock                                                      
                            
                            ) or **https://** means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.


Menu Agricultural Research Service
						
                    U.S. DEPARTMENT OF AGRICULTURE
 Healthy Body Weight Research: Grand Forks, ND
 close



    Research

                    Research Projects
                                    Publications
                                    Collaborations
                                    News
                People

                    Staff Listing
                                    CareersSearch small
                    Search
            
            ARS Home
                                About ARS
                                Contact Us




ARS Home Plains Area Grand Forks, North Dakota Grand Forks Human Nutrition Research Center Healthy Body Weight Research Research





- Roemmich, James
- Casperson, Shanon
- 2019
- 2018
- 2017
- 2016
- 2015
- Publications
- Human Nutrition (107)

Research Project: **Location:
                            Healthy Body Weight Research** Project Number: 3062-51000-051-000-D
                        
                        Project Type: In-House Appropriated Start Date: Oct 1, 2014
                        
                        End Date: Sep 30, 2019 **Objective:**
                        
                        Objective 1: Identify psychological and physiological processes and factors that influence the motivation to exercise and to eat.
Objective 1A. Determine whether incentive sensitization for physical activity is dependent on the dose and the pattern/intensity of physical activity.
Objective 1B. Determine whether the level of negative energy balance influences the magnitude of alterations in food reinforcement.

Objective 2: Determine whether the relative reinforcing value of vegetables or fruits can be increased through repeated exposure.

Objective 3: Determine the effect of meal macronutrient composition on energy metabolism and substrate utilization and satiety.
Objective 3A: Compare the effects of high- vs. low-protein breakfasts as components of two patterns of daily protein intake (even distribution of protein across all meals vs. a skewed distribution with most protein consumed at the evening meal) on energy metabolism, substrate oxidation, satiety and the reinforcing value of high-sugar, after-meal snack foods.
Objective 3B: Determine the effects of consuming a sugar-sweetened beverage as part of low- (55% CHO, 15% PRO, 30% FAT) or high-protein (40% CHO, 30% PRO, 30% FAT) meals on energy metabolism and substrate oxidation, and satiety and RRV of high-sugar, after-meal snacks. **Approach:**
                        
                        Achieving and maintaining healthy body weight underlies many critical aspects of health. The immediate choices people make about their foods and physical activities have cumulative effects that affect body weight and, ultimately, health. Yet, the motivational bases of those choices remain poorly understood; as are ways those choices may be moved towards healthier alternatives. This knowledge is needed for the development of new and effective tools to promote behavioral choices that support healthy body weight. This project addresses these needs by investigating how to increase the reinforcing value of physical activity, and ways to increase the reinforcing value of vegetables and fruits.  It also will evaluate the motivating potential of providing real-time feedback on subject energy balance based on an analysis of breath. This project will yield empirical evidence that will inform dietary and physical activity guidelines and programs, and tools that can be used by workers in the health and fitness industries to help individuals make healthy choices regarding physical activity, diet, and maintenance of a healthy body weight.


Return to top


Connect with ARS Sign up


ARS Home
                            USDA.gov
                            Plain Writing
                            Policies & Links
                            Civil Rights Statements
                            FOIA
                            Accessibility Statement
                            Privacy Policy
                            Non-Discrimination Statement
                            Quality of Information
                            USA.gov
                            WhiteHouse.gov