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Fig. 4 | Sports Medicine - Open

Fig. 4

From: A Randomised, Placebo-Controlled, Crossover Study Investigating the Optimal Timing of a Caffeine-Containing Supplement for Exercise Performance

Fig. 4

Plasma caffeine (a), paraxanthine (b), theobromine (c), theophylline (d), glucose (e) and lactate (f) during the PLA, DUR, ONS and PRE trials. Data are mean for all participants ± SEM. Main effect for time: *, significant difference from − 70; #, significant difference from − 35; †, significant difference from − 20. Main effect for condition: (a) PRE significantly different to ONS, PRE and PLA; (b) ONS significantly different to DUR and PLA; (c) DUR significantly different to PLA and (d) DUR significantly different to DUR and PLA

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