NCT05308381

Breakfast, Exercise and Metabolic Health in Healthy Women

Impact of Different Pre-exercise Breakfast on Post-exercise Glycaemic Response, Appetite and Energy Balance

• Status: Unknown
• Phase: N/A
• Study type: Interventional
• Enrollment: 12 (estimated)
• Sponsor: National Taiwan Normal University · Academic / Other
• Sex: Female
• Age: 30 Years – 55 Years
• Healthy volunteers: Accepted

Summary

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 in active healthy women.

Detailed description

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

• Metabolic Health
• Appetitive Behavior
• Energy Balance

Interventions

Type	Name	Description
BEHAVIORAL	Fasted exercise	Participants will remain fast (Fasted) 2 h prior to 45 min exercise at 65% VO2max.
BEHAVIORAL	High protein breakfast exercise	Participants will consume a high protein breakfast (Protein) 2 h prior to 45 min exercise at 65% VO2max.
BEHAVIORAL	High carbohydrate breakfast exercise	Participants will consume a high carbohydrate breakfast (Carbohydrate) 2 h prior to 45 min exercise at 65% VO2max.

Timeline

• Start date: 2022-03-15
• Primary completion: 2024-03-01
• Completion: 2024-03-01
• First posted: 2022-04-04
• Last updated: 2023-04-04

Locations

1 site across 1 country: Taiwan