The Claim
In male collegiate 400 m sprinters, concentric mean power during the countermovement jump is significantly reduced by 9.7% when measured 24 hours after completing a 400 m sprint performed at 96.8% of personal best time, indicating prolonged neuromuscular fatigue in the concentric phase of explosive lower-body movements following high-intensity sprint exercise.
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.
After college guys run a really hard 400-meter sprint, their explosive jumping power stays about 10% lower the next day, showing their muscles are still tired even a full day later.
See the scientific wording
In male collegiate 400 m sprinters, concentric mean power during the countermovement jump remains significantly reduced by 9.7% when measured 24 hours after completing a 400 m sprint at 96.8% of personal best time, indicating prolonged neuromuscular fatigue in the concentric phase of explosive movements following high-intensity sprint exercise.
What the research says
1 studyThe study shows that after a hard 400 m sprint, male college sprinters still have weaker jump power the next day, especially in the pushing-up phase, which supports the idea that their muscles are still tired.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
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