Caffeine Supplementation Increases Muscle Strength, but Not Endurance, While Both Caffeine and Its Expectation Elevate Blood Lactate: A Balanced-Placebo Design Study - PubMed
4 hours ago
- #muscle strength
- #caffeine
- #blood lactate
- Caffeine supplementation increases muscle strength (4% increase in peak torque during static and 60°/s contractions) but not muscle endurance.
- Caffeine and the expectation of caffeine intake both elevate blood lactate levels (1.2 mmol/L and 0.7 mmol/L increase, respectively).
- No placebo effect was observed for muscle strength or endurance, but placebo did increase blood lactate levels.
- Responses to caffeine were highly variable, with 50-88% of individuals showing improvements in strength and endurance.
- The study used a balanced-placebo design with resistance-trained men (n=16) and a caffeine dose of 5 mg/kg.