The Claim
Acute ingestion of caffeine at a dose of 3 mg/kg has no effect on bench press throw peak velocity, maximal squat strength, maximal bench press strength, or strength-endurance in resistance-trained women, irrespective of the time of day.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
Taking 3 mg of caffeine per kilogram of body weight does not increase peak speed during bench press throws, maximum strength in squats or bench presses, or endurance during strength exercises in women who regularly train with weights, no matter when they take it.
See the scientific wording
Acute caffeine ingestion (3 mg/kg) does not improve bench press throw peak velocity, maximal squat or bench press strength, or strength-endurance in resistance-trained women, regardless of time of day.
Caffeine does not increase muscle force production, movement speed, or endurance during lifting because it does not change how many muscle fibers are activated, how fast they contract, or how much energy is available to them during exercise.
What the research says
1 studyThis study gave women who lift weights a moderate dose of caffeine and found it didn’t help them lift heavier weights, throw the bar faster on the bench press, or do more reps before getting tired—no matter if they did it in the morning or afternoon.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.