The Claim
Six weeks of high-intensity or moderate-intensity resistance training does not improve 10-meter, 20-meter, or 30-meter sprint performance in male academy soccer players, despite significant increases in strength and vertical power.
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.
Six weeks of strength training does not make male academy soccer players faster over short sprints, even though they get stronger and jump higher.
See the scientific wording
Neither high-intensity nor moderate-intensity resistance training improves 10-meter, 20-meter, or 30-meter sprint performance in male academy soccer players over six weeks, despite significant gains in strength and vertical power.
Lifting heavy weights makes muscles fire more strongly and quickly, which increases how hard you can push or jump, but it doesn't change how your legs move during a sprint. The body gets better at using existing muscle fibers, not at moving them faster or more efficiently over short distances.
What the research says
1 studyEven though the teenage soccer players got stronger and jumped higher after doing heavy squats, they didn’t run any faster over short distances like 10, 20, or 30 meters. So, lifting weights didn’t make them sprint better in six weeks.
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.