Ordered Eating and Acute Exercise

Description

There is well documented evidence that ingesting dietary carbohydrate in large amounts tends to increase postprandial glucose. In healthy populations, this is not necessarily a problem, but continuous exposure to high levels of glucose-hyperglycemia-is a defining characteristic and risk factor for type 2 diabetes mellitus. Consuming a carbohydrate-rich food as the final food in a meal sequence has been shown to significantly reduce postprandial glucose excursions in both diabetes patients and in healthy controls. The exact mechanisms behind this phenomenon are not well understood, but one proposed course is simply that the vegetable and protein already being digested slows the rate of glucose rise. Despite the findings, little-to-no research has examined how manipulating the order of foods in a meal impacts subsequent exercise responses. In this experimental crossover study, each participant will undergo two acute feeding conditions (carbohydrate-rich foods first vs. last in a meal), which will be followed by exercise 60 minutes later. We will observe the effects of meal order on postprandial glucose, substrate/fuel utilization, and subjective perceptions at rest and during 30 minutes of exercise.

Conditions

Glucose Metabolism Disorders, Hunger

Study Overview

Study Details

Study overview

There is well documented evidence that ingesting dietary carbohydrate in large amounts tends to increase postprandial glucose. In healthy populations, this is not necessarily a problem, but continuous exposure to high levels of glucose-hyperglycemia-is a defining characteristic and risk factor for type 2 diabetes mellitus. Consuming a carbohydrate-rich food as the final food in a meal sequence has been shown to significantly reduce postprandial glucose excursions in both diabetes patients and in healthy controls. The exact mechanisms behind this phenomenon are not well understood, but one proposed course is simply that the vegetable and protein already being digested slows the rate of glucose rise. Despite the findings, little-to-no research has examined how manipulating the order of foods in a meal impacts subsequent exercise responses. In this experimental crossover study, each participant will undergo two acute feeding conditions (carbohydrate-rich foods first vs. last in a meal), which will be followed by exercise 60 minutes later. We will observe the effects of meal order on postprandial glucose, substrate/fuel utilization, and subjective perceptions at rest and during 30 minutes of exercise.

The Effect of Ordered Eating on Postprandial Glucose and Substrate Utilization During an Acute Exercise Bout

Ordered Eating and Acute Exercise

Condition
Glucose Metabolism Disorders
Intervention / Treatment

-

Contacts and Locations

Norfolk

ODU Human Performance Laboratory, Norfolk, Virginia, United States, 23529

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

For general information about clinical research, read Learn About Studies.

Eligibility Criteria

  • * Currently physically active (scheduled exercise at least three days per week for 30 minutes each time over the last three months)
  • * Ability to perform moderate-to-high intensity running for at least 30 minutes
  • * Any allergy or other condition that would prohibit the consumption of poultry, rice, or broccoli
  • * Any injury or disease (cardiovascular disease, diabetes, pulmonary disease except controlled asthma) precluding physical exercise
  • * Currently pregnant
  • * Implanted electrical devices such as a pacemaker.

Ages Eligible for Study

18 Years to 60 Years

Sexes Eligible for Study

ALL

Accepts Healthy Volunteers

Yes

Collaborators and Investigators

Old Dominion University,

Patrick Wilson, PRINCIPAL_INVESTIGATOR, Old Dominion University

Study Record Dates

2025-07-30