https://matteocampagna.com/en/registry/technique/bow-torque-elite-archers Changes to this claim in Matteo Campagna's evidence registry: its status, its year-by-year history, revisions of the page. en-gb https://matteocampagna.com/en/registry/technique/bow-torque-elite-archersThere is only one study, but it is hard to imagine a higher-level sample: sixteen national team archers filmed at high speed at the test event for the London 2012 Games. In seven of them the arrow's behaviour gives away a twist of the bow: the ratio between the first and second flex falls outside the 0.6 to 0.8 band of the other nine, and the back of the arrow clears the button by 2 to 5 mm, or by 12 or 25 mm, instead of the usual 8 to 10. The same footage often shows where it comes from, with the wrist off the plane of the bow or the tip of the thumb pressing on the side of the riser. The twist, though, is inferred from the arrow through a subjective judgement rather than measured on the bow, which does not visibly rotate before the arrow leaves in any of the sixteen, and the study does not say what it costs in points: the authors note, on the contrary, that if the movement is repeated identically on every arrow, the score can still be impressive.claim:torsione-arco-frequente-elite:revision:2026-09-12:2Sat, 12 Sep 2026 08:00:00 GMT https://matteocampagna.com/en/registry/technique/bow-torque-elite-archersclaim:torsione-arco-frequente-elite:new_claim:2026-08-24:riportatoMon, 24 Aug 2026 08:00:00 GMT