The Effects of Exercise on Dietary Intake

This study has been completed.
Sponsor:
Information provided by:
University of Tennessee
ClinicalTrials.gov Identifier:
NCT00943436
First received: July 20, 2009
Last updated: June 13, 2011
Last verified: June 2011
  Purpose

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.


Condition Intervention
Active Lifestyle Males
Inactive Lifestyle Males
Other: Exercise Session
Other: Rest Session

Study Type: Interventional
Study Design: Allocation: Non-Randomized
Intervention Model: Crossover Assignment
Masking: Open Label
Primary Purpose: Basic Science
Official Title: The Effects of Exercise on Energy Balance and Macronutrient Intake in College-aged Males

Resource links provided by NLM:


Further study details as provided by University of Tennessee:

Primary Outcome Measures:
  • Energy Intake at the Meal (Exercise Session) [ Time Frame: 2 hours ] [ Designated as safety issue: No ]
    Energy intake was measured by weighing each item served in the ad libitum buffet meal before and after the subject's meal and subtracting the difference to determine gram weight of each item consumed. Food labels and the NDS-R software were used to determine dietary intake based upon gram weight of each food consumed.

  • Energy Intake at the Meal (Rest Session) [ Time Frame: 2 hours ] [ Designated as safety issue: No ]
    Energy intake was measured by weighing each item served in the ad libitum buffet meal before and after the subject's meal and subtracting the difference to determine gram weight of each item consumed. Food labels and the NDS-R software were used to determine dietary intake based upon gram weight of each food consumed.

  • Percent Energy From Carbohydrate at the Meal (Exercise Session) [ Time Frame: 2 hours ] [ Designated as safety issue: No ]
    Carbohydrate intake was measured by weighing each item served in the ad libitum buffet meal before and after the subject's meal and subtracting the difference to determine gram weight of each item consumed. Food labels and the NDS-R software were used to determine dietary intake based upon gram weight of each food consumed.

  • Percent Energy From Carbohydrate at the Meal (Rest Session) [ Time Frame: 2 hours ] [ Designated as safety issue: No ]
    carbohydrate intake was measured by weighing each item served in the ad libitum buffet meal before and after the subject's meal and subtracting the difference to determine gram weight of each item consumed. Food labels and the NDS-R software were used to determine dietary intake based upon gram weight of each food consumed.

  • Percent Energy From Protein at the Meal (Exercise Session) [ Time Frame: 2 hours ] [ Designated as safety issue: No ]
    Protein intake was measured by weighing each item served in the ad libitum buffet meal before and after the subject's meal and subtracting the difference to determine gram weight of each item consumed. Food labels and the NDS-R software were used to determine dietary intake based upon gram weight of each food consumed.

  • Percent Energy From Protein at the Meal (Rest Session) [ Time Frame: 2 hours ] [ Designated as safety issue: No ]
    Protein intake was measured by weighing each item served in the ad libitum buffet meal before and after the subject's meal and subtracting the difference to determine gram weight of each item consumed. Food labels and the NDS-R software were used to determine dietary intake based upon gram weight of each food consumed.

  • Percent Energy From Fat at the Meal (Exercise Session) [ Time Frame: 2 hours ] [ Designated as safety issue: No ]
    Fat intake was measured by weighing each item served in the ad libitum buffet meal before and after the subject's meal and subtracting the difference to determine gram weight of each item consumed. Food labels and the NDS-R software were used to determine dietary intake based upon gram weight of each food consumed.

  • Percent Energy From Fat at the Meal (Rest Session) [ Time Frame: 2 hours ] [ Designated as safety issue: No ]
    Fat intake was measured by weighing each item served in the ad libitum buffet meal before and after the subject's meal and subtracting the difference to determine gram weight of each item consumed. Food labels and the NDS-R software were used to determine dietary intake based upon gram weight of each food consumed.


Enrollment: 20
Study Start Date: November 2008
Study Completion Date: August 2009
Primary Completion Date: August 2009 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Active Comparator: Active males
Males who participate in at least 30 minutes of physical activity on 5 or more days per week for the last month.
Other: 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.
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.
Active Comparator: Inactive males
Males who participate in less than 1 hour of physical activity per week for the last month.
Other: 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.
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.

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.
  Eligibility

Ages Eligible for Study:   18 Years to 30 Years
Genders Eligible for Study:   Male
Accepts Healthy Volunteers:   Yes
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"
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT00943436

Locations
United States, Tennessee
Healthy Eating and Activity Laboratory, University of Tennessee
Knoxville, Tennessee, United States, 37920
Sponsors and Collaborators
University of Tennessee
Investigators
Study Chair: Hollie Raynor, PhD, RD University of Tennessee, Knoxville
  More Information

No publications provided

Responsible Party: Emily Jokisch, BS / Hollie Raynor, PhD, RD, Assistant Professor, University of Tennessee
ClinicalTrials.gov Identifier: NCT00943436     History of Changes
Other Study ID Numbers: Univ. of Tennessee IRB:7679B
Study First Received: July 20, 2009
Results First Received: July 2, 2010
Last Updated: June 13, 2011
Health Authority: United States: Institutional Review Board

Keywords provided by University of Tennessee:
Exercise
Sedentary
Energy Expenditure
Energy Balance
Macronutrient Intake
Energy and Macronutrient intake
Exercise and Energy Balance

ClinicalTrials.gov processed this record on September 30, 2014