Post-exercise Protein Intake for Active Children

McMaster University36 enrolled

Overview

Today, there is an important lack of knowledge on the effects of dietary protein on protein metabolism after physical activity in children. Here, the investigators will measure changes in whole body protein metabolism using minimally invasive techniques and stable isotope methodology at rest and after physical activity with the intake of milk protein.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

OTHER

Masking

DOUBLE

Enrollment

Conditions

Child

Interventions

nutritionOTHER

protein-based food

Eligibility

Sex: ALLMin age: 10 YearsMax age: 12 YearsHealthy volunteers:

Medical Language ↔ Plain English

Inclusion Criteria: * Healthy and physically active (as determined by medical and activity questionnaire) * 10-12 years of age * Within approximately 2 years of estimated age of peak height velocity (PHV) * Minimum aerobic fitness of 35 ml/kg/min as assessed by the McMaster All-out Progressive Continuous Cycling Protocol * Having obtained his/her informed assent * Having obtained his/her legal representative's informed consent Exclusion Criteria: * Post-pubertal * Taking any medication * Smoker * Undergoing medical treatment or investigations * Body mass index \> 24 * Suffer from chronic diseases (with regular intake of drugs, medical history) * Vegetarians * Vaccination in the last 4 months * Any know food allergies or intolerance * Pregnancy * Special diet or weight loss program (e.g. Atkins diet) * Acute illness * Fever, cold, flu * Participation in a cholesterol management program with functional foods like food supplement enriched in omega-3 fatty acids, dairy products enriched with phytosterols (margarines, yoghurts).

Locations (1)

McMaster University

Hamilton, Ontario, Canada

Outcomes

Primary Outcomes

Whole body protein balance

Whole body protein balance will be measured by stable isotopes.

Time frame: Participants will be followed for 10 days prior to assessment of whole body protein balance.

Secondary Outcomes

Whole body protein metabolism, metabolites

Whole body protein metabolism by stable isotopes and metabolite concentrations in plasma and urine.

Time frame: Participants will be followed for 10 days prior to assessment of whole body protein metabolism and metabolites

Data from ClinicalTrials.gov

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