NCT06544252

Pre-exercise Ingestion of a Low Glycaemic Index Rice-based Mixed Meal Increases Fat Oxidation and Endurance Running in a Hot-humid Environment

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 12 (actual)
• Sponsor: Universiti Sains Malaysia · Academic / Other
• Sex: Male
• Age: 18 Years – 35 Years
• Healthy volunteers: Accepted

Summary

The objective of this research is to determine the influence of low and high glycemic index Malaysian pre-exercise mixed meals on endurance exercise performance in a hot-humid environment. Glycemic index (GI) is a method used to classify CHO-containing foods based on their influence on postprandial blood glucose when compared to the response on blood glucose after ingesting the same amount of CHO from a reference food (glucose or bread). Low GI (LGI) foods are digested and absorbed more slowly as compared to high GI (HGI) foods, resulting in a stable rise in blood glucose levels. The participants were trained male endurance long-distance runners. On the day of experimental trials, they consumed pre-exercise rice-based mixed meal, either LGI or HGI 3 hours before endurance running exercise. After that, they ran for 45 minutes at constant running speed equivalent to 70% VO2peak, followed by 10km time-trial. The respiratory gases, blood measures, rectal and skin temperature were measured throughout the running test.

Conditions

• Healthy
• Trained Athletes

Interventions

Type	Name	Description
DIETARY_SUPPLEMENT	Low glycaemic index rice-based mixed meal (GI value = 47)	The mixed meal consisted of Basmati rice, chicken, and green-leafy vegetables. The energy content of the mixed meal was based on the body mass of the participant. The amount of CHO was 1.3 g.kg-1 body mass (Burke et al. 2019), and the amount of protein given was 0.5 g.kg-1 per meal (Witard, Garthe and Phillips 2019).
DIETARY_SUPPLEMENT	High glycaemic index rice-based mixed meal (GI value = 80)	The mixed meal consisted of fragrant rice, chicken, and green-leafy vegetables.The energy content of the mixed meal was based on the body mass of the participant. The amount of CHO was 1.3 g.kg-1 body mass (Burke et al. 2019), and the amount of protein given was 0.5 g.kg-1 per meal (Witard, Garthe and Phillips 2019).

Timeline

• Start date: 2022-01-01
• Primary completion: 2023-01-30
• Completion: 2023-01-30
• First posted: 2024-08-09
• Last updated: 2024-08-09

Locations

1 site across 1 country: Malaysia