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Body Weight and Carb Metabolism

NCT05330481 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 20

Last updated 2024-09-19

No results posted yet for this study

Summary

Whilst theoretically, body size should influence the capacity for intestinal carbohydrate absorption and thus exogenous oxidation rates during exercise, there is currently little empirical evidence to support this hypothesis. Accordingly, current nutrition guidelines for carbohydrate intake during exercise do not take body mass into account. Therefore, there is a need to establish whether body mass is related to exogenous carbohydrate oxidation rates during exercise. If such a relationship is established, this would lay the foundation to revise the current sports nutrition guidelines regarding carbohydrate intake during exercise.

The aims of this study are, therefore, to: 1) establish whether larger individuals display higher rates of exogenous carbohydrate oxidation than smaller individuals; and 2) establish if such a difference can be explained by the higher absolute exercise intensity, and thus the energy demand of exercise. It is hypothesised that larger individuals will demonstrate higher exogenous carbohydrate oxidation rates than smaller individuals, and that this difference will be partly (but not completely) diminished when the absolute intensity of exercise is matched.

Conditions

  • Exercise Metabolism

Interventions

OTHER

Moderate-intensity (relative) exercise with glucose ingestion

120 minutes of cycling at 95% of lactate threshold ingesting 90 g/h of glucose

OTHER

Moderate-intensity (absolute) exercise with glucose ingestion

120 minutes of cycling at a power matched to participant in the \<70 kg body mass group, ingesting 90 g/h of glucose

Sponsors & Collaborators

  • University of Birmingham

    collaborator OTHER

  • University of Bath

    lead OTHER

Eligibility

Min Age
18 Years
Max Age
60 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2022-03-01
Primary Completion
2024-04-27
Completion
2024-07-27

Countries

  • United Kingdom

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT05330481 on ClinicalTrials.gov