https://matteocampagna.com/en/registry/technique/bow-still-while-arrow-on-string 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-still-while-arrow-on-stringTwo high-speed measurements point the same way, but only one looks at a group. At the London Olympic test event in 2011, sixteen world-class recurve archers were filmed at 4,000 frames per second while shooting at 70 metres: in all sixteen the bow moved no more than a millimetre sideways, and rotated no more than a tenth of a degree, until the arrow had left the string. A Korean study from 2007, at a thousand frames per second, finds the same in the archer then ranked second in the world, with zero displacement, while the bow of a university archer moves by one or two tenths of a millimetre. As early as 1998, with an accelerometer at the centre of the bow, the first peak in acceleration came 6 to 8 milliseconds after the arrow left the string. The limits are clear: the one-millimetre threshold is the camera's, the Korean comparison is between two people, in a regional journal and with figures in the text that do not match the table, and nobody has measured a group of lower-level archers, where the only case observed did move.claim:arco-fermo-freccia-sulla-corda:revision:2026-10-13:2Tue, 13 Oct 2026 08:00:00 GMT https://matteocampagna.com/en/registry/technique/bow-still-while-arrow-on-stringclaim:arco-fermo-freccia-sulla-corda:new_claim:2026-10-12:riportatoMon, 12 Oct 2026 08:00:00 GMT