Actively Recruiting
Exercise Timing and Postprandial Glucose Responses
Led by Technical University of Munich · Updated on 2026-04-20
30
Participants Needed
1
Research Sites
17 weeks
Total Duration
On this page
AI-Summary
What this Trial Is About
This interventional crossover study examines the effect of exercise timing relative to meal intake on postprandial glucose responses in healthy, physically active young adults. Participants complete five experimental conditions involving endurance exercise performed before or after breakfast or dinner, as well as a non-exercise control condition, while wearing a continuous glucose monitoring device. Postprandial glucose responses are assessed for the three consecutive meals following each exercise session. Following morning exercise, outcomes are assessed after breakfast, lunch, and dinner on the same day. Following evening exercise, outcomes are assessed after dinner on the same day and after breakfast and lunch on the subsequent day. All meals are standardized and consumed at fixed clock times.
CONDITIONS
Official Title
Exercise Timing and Postprandial Glucose Responses
Who Can Participate
Eligibility Criteria
You may qualify if you...
- Age 18 to 35 years
- Body mass index 18.5 to 24.9 kg per square meter
- Able to complete 45 minutes of continuous running at an intensity corresponding to 75 to 85 percent of maximal heart rate without stopping
- Engages in regular endurance-type physical activity
- Habitual waking times are compatible with the fixed breakfast time of 08:00
- Willing and able to comply with all study procedures, including standardized meals, exercise sessions, behavioral restrictions, and continuous glucose monitoring
- For female participants: non-pregnant and using stable hormonal contraception for at least 3 months
You will not qualify if you...
- Acute or chronic illness
- Metabolic disorders or conditions associated with altered glucose or lipid metabolism
- Use of medications known to interfere with glucose metabolism or study outcomes
- Intolerance or allergy to components of the standardized study diets
- Pregnancy or breastfeeding
- Body mass index greater than or equal to 25 kg per square meter
- Current or past eating disorder, or any medical condition or medication that could affect appetite regulation, glucose regulation, or make vigorous endurance exercise unsafe
- Current smoking or use of nicotine-containing products
AI-Screening
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Trial Site Locations
Total: 1 location
1
Technical University of Munich
München, Bavaria, Germany, 80809
Actively Recruiting
Research Team
C
Christoph Höchsmann, PD Dr.
CONTACT
K
Karsten Köhler, Prof. Dr.
CONTACT
How is the study designed?
Study Type
INTERVENTIONAL
Masking
NONE
Allocation
RANDOMIZED
Model
CROSSOVER
Primary Purpose
OTHER
Number of Arms
5
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