Post-exercise Protein Intake for Active Children

Not Applicable

Completed

• Conditions: Child
• Interventions: Other: nutrition

• Registration Number: NCT01598935
• Lead Sponsor: McMaster University

Brief Summary

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.

Detailed Description

Not available

Study Timeline

• Study Start: 2011-10
• Study First Submitted: 2012-02-16
• Study First Submitted QC: 2012-05-11
• Study First Posted: 2012-05-15
• Primary Completion: 2015-08
• Study Completion: 2015-08
• Status Verified: 2022-08
• Last Update Submitted: 2022-08-23
• Last Update Posted: 2022-08-25

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 36

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

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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).

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Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Control	nutrition	placebo
Medium protein intake	nutrition	Nutrition - Medium protein
High protein intake	nutrition	Nutrition - High protein
Low protein intake	nutrition	Nutrition - Low protein

Primary Outcome Measures

Name	Time	Method
Whole body protein balance	Participants will be followed for 10 days prior to assessment of whole body protein balance.	Whole body protein balance will be measured by stable isotopes.

Secondary Outcome Measures

Name	Time	Method
Whole body protein metabolism, metabolites	Participants will be followed for 10 days prior to assessment of whole body protein metabolism and metabolites	Whole body protein metabolism by stable isotopes and metabolite concentrations in plasma and urine.

Trial Locations

Locations (1)

McMaster University; 🇨🇦 Hamilton, Ontario, Canada