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PapersPMID:20581700

VO2max and ventilatory threshold of trained cyclists are not affected by 28-day L-arginine supplementation.

Journal of strength and conditioning research2011The record ↗

  1. Finding, very limited evidenceno difference foundMaximal oxygen uptake

No finding here moved its endpoint.

What did not

1 findingHow to read these marks →
  • “L-arginine supplementation had no effect from initial VO2max (PL, 58.7 ± 7.1 ml·kg·min; ARG, 63.5 ± 7.3 ml·kg·min) to postsupplement VO2max (PL, 58.9 ± 6.0 ml·kg·min; ARG, 63.2 ± 7.2 ml·kg·min).”
    Study
    RCT
    Duration
    4 weeks
    Dose studied
    2 x 6 g/d L-arginine for 28 days
    Population
    Endurance-trained male cyclists (mean age 36.3 years), graded exercise test on own bicycle before and after supplementation

Study record

Design
randomised controlled trial
Species
human
Population
endurance-trained male cyclists
Participants
18
Comparator
placebo
Duration
28 days
Endpoints measured
4