A model for the training effects in swimming demonstrates a strong relationship between parasympathetic activity, performance and index of fatigue.

PLoS One · 2012 · PMC3527593 · PMID 23285121

Europe PMC DOI

hedged sentence

0.0010

closest p · 0.0× alpha

0.0010

boldest claim

The sentences

highly significantp<0.001actually significant

When individual HF data were plotted against individual performance data, a highly significant relationship appeared for each of the ten subjects (p<0.001).

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.