The Claim
Caffeine ingestion is associated with improved vertical jumping performance in females, as measured by countermovement jump (g = 0.26) and squat jump (g = 0.35), with no significant difference between the two test types.
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.
Females who consume caffeine show higher vertical jump performance in both countermovement and squat jump tests, with similar improvements in both types of jumps.
See the scientific wording
Caffeine ingestion is associated with improved vertical jumping performance in both countermovement jump (g = 0.26) and squat jump (g = 0.35) tests, with no significant difference between test types, suggesting caffeine’s effect is consistent across common jump protocols in females.
Caffeine blocks a natural chemical in the body that slows down nerve signals to muscles. This allows nerves to fire more strongly and more often, making muscles contract harder and faster during jumps.
What the research says
1 studyThis study found that when women drink caffeine, they jump higher in both types of jumps tested — and the improvement is about the same for both. So yes, caffeine helps with jumping, no matter which jump you do.
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.