Protein Supplementation Does Not Augment Adaptations to Endurance Exercise Training
Jonvik KL, Paulussen KJM, Danen SL, Ceelen IJM, Horstman AM
Published in Medicine and Science in Sports and Exercise
Methodology
Double-blind randomized parallel placebo-controlled trial: 60 recreationally active males, 12 weeks triweekly endurance training, 28.7 g casein after sessions and pre-sleep versus isoenergetic carbohydrate
Key Findings
VO2max rose 11% with training but did not differ between casein and placebo; time trial performance, muscular endurance and body composition adaptations were also unaffected.
Conclusions
Casein supplementation does not augment endurance training adaptations in individuals with adequate habitual protein intake.
Limitations
Recreationally active young males only; habitual protein intake already sufficient; no low-protein arm.
Supplements Studied
Endurance exercise training induced an 11% ± 6% increase in V̇O2max, with no differences between groups (time-treatment interaction, P = 0.50).
Outcomes Measured
Endurance exercise training induced an 11% ± 6% increase in V̇O2max, with no differences between groups.
Study Details
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Disclosures
Funding
Not specified
This information is for educational purposes only. Always consult a healthcare professional before starting any supplement regimen.