Acute supplementation of L-arginine neither affects strength performance nor nitric oxide production.

CONCLUSIONS: These results do not support the use of L-arginine as an ergogenic aid for strength performance, at least in context of acute use immediately before resistance exercise performance. PMID: 27623757 [PubMed - as supplied by publisher]
Source: Journal of Sports Medicine and Physical Fitness - Category: Sports Medicine Tags: J Sports Med Phys Fitness Source Type: research