The Claim
Six weeks of sprint training performed three times per week improves sprint performance in young men, increasing peak power by 6% and mean power by 5%.
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.
Young men who do sprint training three times a week for six weeks get faster and their power output goes up: their peak power increases by 6% and their average power by 5%.
See the scientific wording
In young men, six weeks of sprint training performed three times per week improves sprint performance, with peak power increasing by 6% and mean power by 5%.
Doing sprint training three times a week for six weeks makes your leg muscles better at getting rid of a waste product called ammonia, which is made during very hard exercise. With less ammonia in your muscles and blood, you don't get as tired during a sprint, so your legs can push harder and you can produce more power.
What the research says
1 studyStudy: Effect of 6 weeks of sprint training on growth hormone responses to sprinting
The study did the same workout routine and found that people got better at sprinting, with their peak and average power going up by about 5-6%, just like the claim says.
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.