Does Caffeine ingestion prior to high intensity exercise act as an ergogenic aid in sporting performance in male athletes?

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Author
Martin, Jack
Date
2015Type
Thesis
Publisher
Cardiff Metropolitan University
Metadata
Show full item recordAbstract
The aim of this study was to investigate the impact of caffeine on high intensity
exercise. Trained male university students (n=12, 20.5±0.67 years,
83.8±6.57kg) volunteered to participate in the study. The testing protocol was
a randomised, counter balanced, double-blinded design and was completed
over a two-week period during two sessions, with participants consuming a
caffeinated gel and a placebo gel. The gel contained 75mg of caffeine and
was consumed one-hour before exercise. Five exercises were used for
testing; one repetition maximum squat, one repetition maximum bench press
(with 3-4 minutes rest between attempts) three loaded jump squats at 40% of
1RM, three medicine ball pushes with 5kg medicine ball, and a 10 second
sprint of a Wingate. The caffeine gel increased performance in all five of the
exercise with a percentage increase when caffeine was consumed compared
to the placebo trial. A significant difference was noted in the squat, loaded
jump squat and medicine ball push (Caffeine = 143.1 ± 23.1 VS. Placebo =
138.3 ± 22.1 P<0.05; Caffeine = 1160.5 ± 206.13 VS. Placebo = 1093.2 ±
212.63 P<0.05 and Caffeine = 6.2 ± 0.42 VS. Placebo = 5.9 ± 0.41 CM
respectively). Overall performance was improved when caffeine was
consumed one-hour prior to exercise. However, there were no significant
difference noted in the bench press and Wingate.
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