Scientifically proven benefits of consuming caffeine one hour before training include increased ability to complete more reps with a given weight and an increased one - rep max bench press strength. (fitnessandpower.com)
Friday — Workout A, 75 % Squats: 5 sets of 5 reps at 75 % of training max Bench Press: 5 sets of 5 reps at 75 % of training max (muscleandbrawn.com)
A 2015 study found that it boosted max bench press strength by 17.7 %. (onnit.com)