Jebabli, NidhalOuerghi, NejmeddineAbassi, WissalYagin, Fatma HilalKhlifi, MariemBoujabli, ManarBouassida, Anissa2024-08-042024-08-0420231664-042Xhttps://doi.org/10.3389/fphys.2023.1240871https://hdl.handle.net/11616/101746Molecular hydrogen (H2 gas) dissolved in water to produce Hydrogen-Rich Water. Hydrogen-Rich Water (HRW) is considered as ergogenic aid in different exercise modes. However, acute pre-exercise HRW ingestion effect is unclear regarding athlete performance. This study aimed at investigating acute effect of HRW ingestion on aerobic and anaerobic exercise performance. Twenty-two male amateur middle-distance runners volunteered to participate in this study. In a randomized, double-blind study design, all players ingested 500 mL of HRW or placebo (PLA) supplement 30 min before the start of the tests. Over 4 days, maximal aerobic speed of Vameval test (MAS), time to exhaustion at MAS (Tlim), squat jump (SJ), counter-movement jump (CMJ) and five jump test (5JT) were evaluated. Also, rate of perceived exertion (RPE) and peak heart rate (HRpeak) were measured during the aerobic tests. For Vameval test, HRW ingestion improved MAS, HRpeak and RPE compared with the placebo condition. For Tlim test, HRW ingestion demonstrated improvements in time to exhaustion, RPE and HRpeak. However, no significant change was observed between HW and placebo conditions in SJ, CMJ, 5JT. 500 mL of HRW can significantly improve HRpeak, time to exhaustion, RPE, with no significant effect on MAS, jumping performance in amateur endurance athletes.eninfo:eu-repo/semantics/openAccessmolecular hydrogenpre-exercise ingestionmaximal aerobic speedtime to exhaustionjumping testsArticle143816283110.3389/fphys.2023.12408712-s2.0-85180909741Q1WOS:001135983800001Q2