- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT05589129
Whey Protein Supplementation in High School Athletes
Effects of a Whey Protein Supplement on Performance, Recovery, and Body Composition in Adolescent Soccer Players During the Competitive Season
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Informed Consent, Parental Permission and Assent: These will be obtained over Zoom, prior to participation in any study procedures.
Randomization: Randomization will occur following baseline testing. Participants will be randomized via random number generator stratified by sex, into either the whey protein supplement group or the placebo (isocaloric) control group.
Baseline and Post-Intervention testing will occur over a single day for each participant.
Baseline:
All athletes will report to testing facilities for a single blood draw to measure inflammatory biomarkers and a body composition assessment (via BodPod) to measure fat mass and fat free mass. Participants will then be escorted to a track where they will run a 30-yard dash to assess their speed and a 1.5-mile run to assess their estimated maximal rate of oxygen consumption (VO2max). Participants will then be transferred back to the testing facility where they will undergo assessment of lower body muscle fatigue (via HumacNorm).
Questionnaires: Athletes will complete the Munich Chronotype Questionnaire and the Pittsburg Sleep Quality Index (PSQI). Participants will also complete 3-day, 24-hour dietary recalls (via ASA-24).
Sleep measures: Fitbit (Inspire 2) will be used measure sleep efficiency, duration, and staging. Fitabase will be utilized to receive Fitbit data. Participants will be instructed to wear their Fitbit for 1-week.
Intervention:
In-season soccer practices and competition will occur 6-days per week across a 10-12 week period, depending on how far teams advance in postseason play. During the 10-12-weeks, participants will consume their assigned supplement or placebo twice per day, every day, immediately after practice or competition (or midday on rest days), and ~1 hour before bedtime.
Sleep measures: Sleep measures will be evaluated as described above. Sleep measures will be collected at weeks 2, 4, 6, 8, and 10.
Questionnaires: Participants will complete 3-days of 24-hour dietary recalls (via ASA-24) at weeks 5 and 10. Pittsburg Sleep Quality Index (PSQI), a delayed-onset muscle soreness questionnaire and a GI symptom Questionnaire will be completed at weeks 2, 4, 6, 8 and 10.
Urine Samples: We will randomly assign participants to provide urine samples at weeks 4 and 7 as a sham measure of compliance to supplementation protocol.
Post-testing will be the same as pre-testing and will commence after the 10-12-week competitive season. All measures described above in baseline testing will be repeated.
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
Utah
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Salt Lake City, Utah, United States, 84112
- Grace Zimmerman
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-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- 13-18 years old; male and female High school soccer players
Exclusion Criteria:
- non-adolescents; untreated or underlying metabolic or cardiovascular diseases; allergies to dairy, or any allergies ingredients in the study provided granola bar or bagels, such as soy, wheat, tree nuts, peanuts, milk, and sesame.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: OTHER
- Allocation: RANDOMIZED
- Interventional Model: PARALLEL
- Masking: DOUBLE
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
EXPERIMENTAL: Whey Protein Supplement
Whey protein will come in powder form and will consist of 20g of protein, and 25.3g of product.
We will use Optimum Nutrition Double Chocolate Whey Protein Isolate.
|
Participants assigned to the intervention will consume the supplement mixed with 6-8oz of water every day, twice per day, after soccer practice or soccer games, and one hour before bedtime.
Other Names:
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PLACEBO_COMPARATOR: Carbohydrate Control
Carbohydrate control will come in powder form and will consist of 20g of carbohydrate and 21.6g of product.
We will use Nesquick Chocolate Powder mix.
|
Participants assigned to the placebo control will consume the supplement mixed with 6-8oz of water every day, twice per day, after soccer practice or soccer games, and one hour before bedtime.
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Changes in Fat Free Mass
Time Frame: Measured at baseline and post-intervention (10-12-weeks)
|
Measured via BodPod
|
Measured at baseline and post-intervention (10-12-weeks)
|
Changes in Fat Mass
Time Frame: Measured at baseline and post-intervention (10-12-weeks)
|
Measured via BodPod
|
Measured at baseline and post-intervention (10-12-weeks)
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Estimated Cardiorespiratory Fitness (V02max)
Time Frame: Measured at baseline and post-intervention (10-12-weeks)
|
Measured via 1.5-mile run time
|
Measured at baseline and post-intervention (10-12-weeks)
|
Changes in Muscular Fatigue
Time Frame: Measured at baseline and post-intervention (10-12-weeks)
|
Measured via leg extension machine (HumacNorm) using isometric muscle contraction in the quadriceps muscle.
|
Measured at baseline and post-intervention (10-12-weeks)
|
Sleep Efficiency
Time Frame: Measured at baseline, 2-, 4-, 6-, 8-weeks and post-intervention (10-12-weeks)
|
Measured via Fitbit devices.
Sleep efficiency is measured based on how long and individual is asleep over the time spent in bed during the night.
|
Measured at baseline, 2-, 4-, 6-, 8-weeks and post-intervention (10-12-weeks)
|
Sleep Duration
Time Frame: Measured at baseline, 2-, 4-, 6-, 8-weeks and post-intervention (10-12-weeks)
|
Measured via Fitbit devices.
Sleep duration is measured based on how long the individual is asleep.
|
Measured at baseline, 2-, 4-, 6-, 8-weeks and post-intervention (10-12-weeks)
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Changes in Speed
Time Frame: Measured at baseline and post-intervention (10-12-weeks)
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30 yard sprint
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Measured at baseline and post-intervention (10-12-weeks)
|
Sleep Staging
Time Frame: Measured at baseline, 2-, 4-, 6-, 8-weeks and post-intervention (10-12-weeks)
|
Measured via Fitbit devices.
Sleep stages are different periods of sleep where muscle tone and heart rate vary.
|
Measured at baseline, 2-, 4-, 6-, 8-weeks and post-intervention (10-12-weeks)
|
Other Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Changes in adiponectin
Time Frame: Measured at baseline and post-intervention (10-12-weeks)
|
Measured via blood sample to assess levels of fatty acid oxidation as well as inflammation
|
Measured at baseline and post-intervention (10-12-weeks)
|
Changes in interleukin-6
Time Frame: Measured at baseline and post-intervention (10-12-weeks)
|
Measured via blood sample to assess inflammation
|
Measured at baseline and post-intervention (10-12-weeks)
|
Changes in fibroblast growth factor 21
Time Frame: Measured at baseline and post-intervention (10-12-weeks)
|
Measured via blood sample to assess muscle hypertrophy
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Measured at baseline and post-intervention (10-12-weeks)
|
Changes in follistatin
Time Frame: Measured at baseline and post-intervention (10-12-weeks)
|
Measured via blood sample to assess muscle hypertrophy
|
Measured at baseline and post-intervention (10-12-weeks)
|
Changes in delayed onset muscle soreness
Time Frame: Measured at baseline, 2-, 4-, 6-, 8-weeks and post-intervention (10-12-weeks)
|
Measured via likert scale questionnaire
|
Measured at baseline, 2-, 4-, 6-, 8-weeks and post-intervention (10-12-weeks)
|
Changes in Sleep quality
Time Frame: Measured at baseline, 2-, 4-, 6-, 8-weeks and post-intervention (10-12-weeks)
|
Measured via Pittsburgh Sleep Quality Index questionnaire
|
Measured at baseline, 2-, 4-, 6-, 8-weeks and post-intervention (10-12-weeks)
|
Changes in dietary habits
Time Frame: Measured at baseline, 5-weeks and post-intervention (10-12-weeks)
|
Measured via a 3-day food recall
|
Measured at baseline, 5-weeks and post-intervention (10-12-weeks)
|
Sleep Chronotype
Time Frame: Measured at baseline.
|
Measured by the Munich Chronotype Questionnaire to evaluate the morningness-eveningness of participants.
|
Measured at baseline.
|
Collaborators and Investigators
Sponsor
Study record dates
Study Major Dates
Study Start (ACTUAL)
Primary Completion (ANTICIPATED)
Study Completion (ANTICIPATED)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (ACTUAL)
Study Record Updates
Last Update Posted (ACTUAL)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 00145632
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
IPD Plan Description
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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