Breakfast, Exercise and Metabolic Health in Healthy Men

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

NA

Total Enrollment

12 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-03-13

Study Completion Date

2024-01-01

Brief Summary

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This project aims to investigate the impact of acute bout of submaximal exercise under different pre-exercise dietary conditions (fasted state versus high carbohydrate breakfast versus high protein breakfast) on postprandial glycaemic, appetite regulation and energy balance.

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Detailed Description

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Participants will be asked to arrive to the laboratory between 08:00 and 9:00 am after not eating for between 12-14 hours i.e. in a fasted state (water intake is permitted and encouraged). Participants will then be given one of three test drinks (i.e., breakfast): 1) water only; 2) high carbohydrate drink; or 3) high protein (whey protein) drink. Each of these drinks will also contain 500 mL of water and artificial sweetener. 2 h after breakfast, participants will then exercise on a treadmill for 45 min followed by a 2-h oral glucose tolerance test (OGTT) and 30 min ad libitum lunch intake. Blood samples, blood pressures and questionnaire (e.g., appetite and mood) will be collected in a regular pattern throughout the trials. Cognitive functions will be tested at baseline, pre-exercise and 2 h post-exercise. Energy balance will be assessed using food diary and an accelerometer for the rest of the day after leaving the laboratory until midnight.

Conditions

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Metabolic Health Appetitive Behavior Energy Balance

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

DOUBLE

Participants Investigators

Participants and Researchers will be blinded to the interventions.

Study Groups

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Fasted exercise

Fasted prior to exercise

Group Type EXPERIMENTAL

Fasted exercise

Intervention Type BEHAVIORAL

Participants will remain fast (Fasted) 2 h prior to 45 min exercise at 65% VO2max.

High protein breakfast exercise

High protein breakfast consumption prior to exercise

Group Type EXPERIMENTAL

High protein breakfast exercise

Intervention Type BEHAVIORAL

Participants will consume a high protein breakfast (Protein) 2 h prior to 45 min exercise at 65% VO2max.

High carbohydrate breakfast exercise

High carbohydrate breakfast consumption prior to exercise

Group Type EXPERIMENTAL

High carbohydrate breakfast exercise

Intervention Type BEHAVIORAL

Participants will consume a high carbohydrate breakfast (Carbohydrate) 2 h prior to 45 min exercise at 65% VO2max.

Interventions

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Fasted exercise

Participants will remain fast (Fasted) 2 h prior to 45 min exercise at 65% VO2max.

Intervention Type BEHAVIORAL

High protein breakfast exercise

Participants will consume a high protein breakfast (Protein) 2 h prior to 45 min exercise at 65% VO2max.

Intervention Type BEHAVIORAL

High carbohydrate breakfast exercise

Participants will consume a high carbohydrate breakfast (Carbohydrate) 2 h prior to 45 min exercise at 65% VO2max.

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

* Healthy physical active men (self-reported regular exercise at least 30 min moderate-intensity 3 times per week)
* Aged between 30 to 55 years
* Weight stable for more than 3 months (no change in weight +/- 3%)
* Non-smoker

Exclusion Criteria

* Personal history of/existing diabetes, cardiovascular disease, metabolic disease or dyslipidaemia
* Taking medications that may influence lipid or carbohydrate metabolism or immune system function
* Women
* Physically inactive

Minimum Eligible Age

30 Years

Maximum Eligible Age

55 Years

Eligible Sex

MALE

Accepts Healthy Volunteers

Yes