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. 2010 May 14;7:18. doi: 10.1186/1550-2783-7-18

Table 2.

Muscle strength and endurance data (means ± SD).

Placebo Caffeine
Bench Press
 1RM (kg) 52.1 ± 11.7 52.9 ± 11.1*
 60% 1RM 23.0 ± 7.1 23.1 ± 6.2

* Indicates significant difference between conditions, p < 0.05.