Acute effects of l-arginine intake on heart rate variability after a submaximal exercise test in healthy men: randomized clinical trial.
- 2025-08
- RCT
- Nitric oxide : biology and chemistry 157
- Andrey Alves Porto
- Luana Almeida Gonzaga
- Rayana Loch Gomes
- Bruno M Candeloro
- Rodrigo Daminello Raimundo
- Luiz Carlos Marques Vanderlei
- Vitor Engrácia Valenti
- PubMed: 40389021
- DOI: 10.1016/j.niox.2025.05.003
- High evidence
- Adults
A trend toward faster vagal reactivation (rMSSD) was observed with L-ARG, but effect sizes were small and not clinically relevant.
- Effect
- Neutral
- Effect size
- Small
- Significant
- No
- Dose
- 3 g