The Effects of Exercise on Dietary Intake

NCT ID: NCT00943436

Last Updated: 2018-06-29

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: NA
• Total Enrollment: 20 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2008-11-30
• Study Completion Date: 2009-08-31

Brief Summary

The purpose of this study is to determine whether or not energy and macronutrient intake changes when comparing habitually active and habitually sedentary college-aged males in two different sessions of one resting and one exercise.

Detailed Description

Obesity is a consequence of positive energy balance, in which more energy is consumed than expended. It is hypothesized that regular amounts of physical activity may be important in helping individuals more accurately regulate energy balance. More research is needed to understand the impact of a physically active lifestyle on energy regulation capabilities Therefore, this study looks at sedentary college aged males compared to active college aged males when looking at two different sessions of energy expenditure, one exercise session and one resting session, and their energy and macronutrient intake after these sessions. The sessions will take place in the morning where each participant will exercise or rest and then be allowed to eat from a buffet ad libitum, where acute energy and macronutrient intake will be assessed.

The following hypotheses are proposed:

• Individuals who regularly engage in physical activity will more accurately respond to an energy deficit caused by an acute period of physical activity by increasing intake at a subsequent meal.
• Individuals who do not regularly engage in physical activity (sedentary individuals) will be less sensitive to accurately regulate energy balance and will not respond to an energy deficit caused by a period of acute physical activity.

Conditions

Active Lifestyle Males; Inactive Lifestyle Males

Study Design

• Allocation Method: NON_RANDOMIZED
• Intervention Model: CROSSOVER
• Primary Study Purpose: BASIC_SCIENCE
• Blinding Strategy: NONE

Study Groups

Active males

Males who participate in at least 30 minutes of physical activity on 5 or more days per week for the last month.

Group Type: ACTIVE_COMPARATOR

Exercise Session

Intervention Type: OTHER

This study consists of two laboratory sessions. Participants will be randomly assigned to the order in which they go through these two sessions. The "Exercise Session" will consist of the participant coming into the lab and completing 45 min bout of exercise on an exercise bike, followed by a 60 min resting period, followed by the lunch buffet portion of the session where they will have 25 min to eat ad libitum.

Rest Session

Intervention Type: OTHER

This study consists of two laboratory sessions. Participants will be randomly assigned to the order in which they go through these two sessions. The "Rest Session" will consist of the participant coming into the lab and completing a 45 min period of reading followed by a 60 min resting period, followed by the lunch buffet portion of the session where they will have 25 min to eat ad libitum.

Inactive males

Males who participate in less than 1 hour of physical activity per week for the last month.

Group Type: ACTIVE_COMPARATOR

Exercise Session

Intervention Type: OTHER

This study consists of two laboratory sessions. Participants will be randomly assigned to the order in which they go through these two sessions. The "Exercise Session" will consist of the participant coming into the lab and completing 45 min bout of exercise on an exercise bike, followed by a 60 min resting period, followed by the lunch buffet portion of the session where they will have 25 min to eat ad libitum.

Rest Session

Intervention Type: OTHER

This study consists of two laboratory sessions. Participants will be randomly assigned to the order in which they go through these two sessions. The "Rest Session" will consist of the participant coming into the lab and completing a 45 min period of reading followed by a 60 min resting period, followed by the lunch buffet portion of the session where they will have 25 min to eat ad libitum.

Interventions

Exercise Session

This study consists of two laboratory sessions. Participants will be randomly assigned to the order in which they go through these two sessions. The "Exercise Session" will consist of the participant coming into the lab and completing 45 min bout of exercise on an exercise bike, followed by a 60 min resting period, followed by the lunch buffet portion of the session where they will have 25 min to eat ad libitum.

Intervention Type: OTHER

Rest Session

This study consists of two laboratory sessions. Participants will be randomly assigned to the order in which they go through these two sessions. The "Rest Session" will consist of the participant coming into the lab and completing a 45 min period of reading followed by a 60 min resting period, followed by the lunch buffet portion of the session where they will have 25 min to eat ad libitum.

Intervention Type: OTHER

Eligibility Criteria

Inclusion Criteria

• BMI of 20-25
• Percent body fat of 10-18%
• Exercises greater than or equal to 5 days/wk at 30 min/day or less than or equal to 1 day/week at 1 hour/day consistently for the past month
• Likes study foods

Exclusion Criteria

• Does not fit in exercise criteria
• Allergies or unwillingness eat study food, falls
• From survey qualifies as a "conscious eater"

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 30 Years
• Eligible Sex: MALE
• Accepts Healthy Volunteers: Yes

Sponsors

The University of Tennessee, Knoxville

OTHER

Sponsor Role: lead

Responsible Party

Hollie Raynor

Professor

Responsibility Role: PRINCIPAL_INVESTIGATOR

Principal Investigators

Hollie Raynor, PhD, RD

Role: STUDY_CHAIR

University of Tennessee, Knoxville

Locations

Healthy Eating and Activity Laboratory, University of Tennessee

Knoxville, Tennessee, United States

Countries

United States

Other Identifiers

Univ. of Tennessee IRB:7679B

Identifier Type: -

Identifier Source: org_study_id