What Factors Influence Head Acceleration During a Purposeful Header in Soccer Players? A Systematic Review.

Sports Med · 2025 · PMC12296814 · PMID 40272776

Europe PMC DOI

hedged sentence

—

closest p

—

boldest claim

The sentences

a statistical trendno p-value reported

Of studies where this relationship was investigated ( n = 6), two found that with increasing ball speed, there was a statistical trend [ 87 ] and a statistically significant relationship with increased head acceleration [ 91 ].

also in 2,681 other papers

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.