Six hours of hypoxia at 4500 m does not affect psychobiological parameters, regardless of glutamine supplementation: A randomized, double-masked, placebo-controlled clinical trial - Wanessa YG Souza; Valdir A Lemos; Marcus VL dos Santos Quaresma; Jean C Silvestre; Camila G Marques; Ronaldo V Thomatieli-Santos (Nutrition and Health, 2026)