N/A N=30 Randomized Double-blind Other

Whey Protein Supplementation in High School Athletes

Body Weight Changes · Athletic Performance · Recovery · Sleep

Bottom Line

View on ClinicalTrials.gov: NCT05589129 ↗

Enrolled (actual)

Serious AEs

0.0%

Results posted

Apr 2026

Primary outcome: Primary: Estimated VO2max — 43.8; 42.0; 47.9; 44.5 ml/kg/min — p==0.04

Study Design & Population

Study type: Interventional
Phase: N/A
Interventions: Whey Protein Supplement (Dietary_supplement); Carbohydrate Placebo Control (Dietary_supplement)
Age: Pediatric, Adult · 13+ yrs
Sex: All
Sponsor: University of Utah
Primary completion: Oct 2022

Outcome Measures

Outcome	Result	p-value
PRIMARY Estimated VO2max	43.8; 42.0; 47.9; 44.5	=0.04 sig
SECONDARY Changes in Muscular Fatigue Via Repetitions to Fatigue	10; 6.58; 8.3; 7.2	=0.02 sig
SECONDARY Changes in Speed	4.9; 4.99; 4.73; 4.8	=0.85
SECONDARY Changes in Muscular Strength	168; 171; 172; 164	=0.34

Summary

The overall aim of this project is to compare protein supplementation on performance, recovery, and body composition changes in adolescent soccer players between the whey protein and the control group in response to the 10-12-week intervention.

Eligibility Criteria

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.

View full record on ClinicalTrials.gov →

Data sourced from ClinicalTrials.gov (NCT05589129). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication.