Kavci, ZaferOzan, MuratBuzdagli, YusufSavas, AdemUcar, Halil2026-04-042026-04-0420251550-2783https://doi.org/10.1080/15502783.2024.2445609https://hdl.handle.net/11616/109224BackgroundTaekwondo is a complex martial art that requires speed, balance, agility, and endurance. This study aims to examine the effects of nitrate and L-arginine supplementation on acute aerobic and anaerobic performance, balance, agility, and recovery in elite taekwondo athletes.MethodThis study was conducted as a double-blind, randomized, crossover study with the participation of 15 experienced taekwondo athletes aged 19.06 +/- 0.96 years and 8.93 +/- 1.27 years of training experience. Participants visited the laboratory a total of nine times, including a practice session and anthropometric measurements. These visits consisted of eight experimental sessions conducted at 72-hour intervals. The experimental sessions were conducted with nitrate, L-arginine, and a combination of both supplements (NIT*L-ARG) and placebo. Nitrate supplementation was provided by homogenizing fresh spinach (837.40 mg/kg), while L-ARG was given as a single dose of 6 g in powder form three hours before exercise.ResultsNIT*L-ARG supplementation significantly improved the anaerobic performance of athletes in Wingate peak power and peak power (w/kg) compared to placebo and in mean power compared to NIT, L-ARG, and PLA. In addition, NIT*L-ARG supplementation significantly improved blood lactate levels and agility performance immediately after Wingate and Shuttle run tests.ConclusionThe combined intake of NIT*L-ARG was found to be effective in improving aerobic, anaerobic, and agility performances as well as fatigue levels of athletes. It was determined that taking NIT and L-ARG supplements alone contributed to the improvement of improving athletes' performance in Wingate mean power values and subsequent fatigue level compared to PLA.eninfo:eu-repo/semantics/openAccessTaekwondolactatenitrateL-arginineWingateArticle2213971410310.1080/15502783.2024.24456092-s2.0-85212959034Q1WOS:001381926600001Q10000-0002-4231-12670000-0003-1809-5194