Fig. 1From: Acute effects of beetroot juice and caffeine co-ingestion during a team-sport-specific intermittent exercise test in semi-professional soccer players: a randomized, double-blind, placebo-controlled studyParticipant allocation according to BJ + CAF, BJ + PL, CAF + PL, PL + PL. BJ, Beetroot juice; CAF, caffeine; PL, placeboBack to article page