Post-exercise Protein Intake for Active Children

Double Blind Controlled Trial of Protein in Active Children

Status

Completed

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT01598935

Enrollment

Registered

2012-05-15

Start date

2011-10-31

Completion date

2015-08-31

Last updated

2022-08-25

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Child

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.

Interventions

OTHERnutrition

protein-based food

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

OTHER

Masking

DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender

ALL

Age

10 Years to 12 Years

Healthy volunteers

Yes

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).

Design outcomes

Primary

Measure	Time frame	Description
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

Measure	Time frame	Description
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.

Countries

Canada

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 10, 2026