The effects of low and moderate doses of caffeine supplementation on upper and lower body maximal voluntary concentric and eccentric muscle force.
Study Goal
The researchers aimed to investigate the effects of low and moderate doses of caffeine on the maximal voluntary strength of the elbow flexors and knee extensors, comparing upper and lower body musculature.
Results Summary
The study measured isokinetic concentric and eccentric strength at different velocities following caffeine administration, but the abstract does not provide specific results regarding caffeine's effects on strength.
Population
Ten nonspecifically strength-trained, recreationally active participants (aged 21 ± 0.3 years).
Effective Dosage
3 mg·kg (specific frequency not mentioned).
Duration
Not specified in the abstract.
Interactions
None mentioned.
| Intervention | Direction | Endpoint | Population | Dosage | Impact | Claim # |
|---|---|---|---|---|---|---|
low dose of caffeine | neutral | maximal voluntary strength of the elbow flexors and knee extensors | Ten nonspecifically strength-trained, recreationally active participants (aged 21 ± 0.3 years) | - | sought to investigate the effects | #1 |
moderate dose of caffeine | neutral | maximal voluntary strength of the elbow flexors and knee extensors | Ten nonspecifically strength-trained, recreationally active participants (aged 21 ± 0.3 years) | - | sought to investigate the effects | #2 |
Despite the growing quantity of literature exploring the effect of caffeine on muscular strength, there is a dearth of data that directly explores differences in erogenicity between upper and lower body musculature and the dose-response effect. The present study sought to investigate the effects of low and moderate doses of caffeine on the maximal voluntary strength of the elbow flexors and knee extensors. Ten nonspecifically strength-trained, recreationally active participants (aged 21 ± 0.3 years) completed the study. Using a randomised, counterbalanced, and double-blind approach, isokinetic concentric and eccentric strength was measured at 60 and 180°/s following administration of a placebo, 3 mg·kg