The Effects of Exercise on Dietary Intake

The University of Tennessee, Knoxville

Status: Completed

Conditions: Active Lifestyle Males; Inactive Lifestyle Males

Treatments: Other: Exercise Session; Other: Rest Session

Study type: Interventional

Funder types: Other

Identifiers

NCT00943436

Univ. of Tennessee IRB:7679B

Details and patient eligibility

About

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.

Full 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.

Enrollment: 20 patients

Sex: Male

Ages: 18 to 30 years old

Volunteers: Accepts Healthy Volunteers

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"

Trial design

Primary purpose: Basic Science

Allocation: Non-Randomized

Interventional model: Crossover Assignment

Masking: None (Open label)

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20 participants in 2 patient groups

Active males

Active Comparator group

Description:

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

Treatment:

Other: Exercise Session

Other: Rest Session

Inactive males

Active Comparator group

Description:

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

Treatment:

Other: Exercise Session

Other: Rest Session