https://matteocampagna.com/en/registry/equipment/stabilisers-bow-movement 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/equipment/stabilisers-bow-movementOnly one laboratory experiment has tested the question directly, and the answer is yes, though on a scale that cuts the matter down to size. With one Italian national-team archer, fifteen shots per set-up and the force on the pressure button sampled at 2,500 Hz, twenty-six milliseconds after release the bow had moved sideways by 0.94 mm with no stabilisers, 0.84 mm with soft TFCs and 0.70 mm with hard ones, every comparison being significant. In absolute terms, though, it stays under a millimetre even with no stabiliser at all: what really changes is the consistency, because without stabilisers the shot-to-shot spread almost doubles. A model of an Olympic bow with a commercial stabiliser shows where the gain comes from, the long rod flexing about a millimetre upwards and partly cancelling the riser's rotation. Where the picture stops is the next step. Films of sixteen world-level archers shooting their own set-ups find no measurable movement of the bow while the arrow is on the string, at most a millimetre sideways and less than a tenth of a degree of rotation, and without a comparison with and without stabilisers that stillness cannot be credited to the stabilisers. On the barebow there is a single test, of weights fitted to the riser, which greatly reduce the bow's movement over the shot as a whole but say nothing about those first milliseconds. Nobody has yet linked the bow's movement in those milliseconds to where the arrow ends up.claim:stabilizzatori-movimento-arco:revision:2026-10-13:2Tue, 13 Oct 2026 08:00:00 GMT https://matteocampagna.com/en/registry/equipment/stabilisers-bow-movement#storiaThe first figures on the barebow come from a test of weights fitted to the riser: with no weights the sensor next to the button records a lateral displacement many times larger than with the best configurations, 139.2 mm against 13.0 and 16.9 mm, and the archers rate the bow's behaviour as worse. The measurement, though, covers the shot without stopping at the milliseconds while the arrow is on the string, and barebow weights are not stabilisers: it is context, and the status stays reported on the strength of the 1987 test alone.claim:stabilizzatori-movimento-arco:history_entry:2026-10-12:2023Mon, 12 Oct 2026 08:00:00 GMT https://matteocampagna.com/en/registry/equipment/stabilisers-bow-movementclaim:stabilizzatori-movimento-arco:new_claim:2026-10-06:riportatoTue, 06 Oct 2026 08:00:00 GMT