Objective: We investigated the effects of acute ingestion of extract on metabolic and cardiopulmonary responses during a high-intensity interval exercise (HIIE), and its consequence on neuromuscular fatigue.
Methods: Ten healthy men underwent a HIIE (4 x 4 min, 3 min recovery) one hour after ingesting 400 mg of extract (MIE) or placebo. Oxygen uptake (O), dioxide carbon production (CO), ventilation (E) and heart rate (HR) were measured throughout the HIIE.