rct
    2019
    High Quality

    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

    Year:2019
    Sample Size:60
    Duration:12 weeks
    Quality Score:9/10

    Disclosures

    Funding

    Not specified

    This information is for educational purposes only. Always consult a healthcare professional before starting any supplement regimen.