https://matteocampagna.com/en/registry/health/beta-blockers-accuracy 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/health/beta-blockers-accuracyThe idea comes from pistol shooting, where two studies had found a benefit; in archery the ban dates from 1985. The only controlled study of archers in the bibliography, randomised, double-blind and placebo-controlled in 15 national-team archers, saw heart rate fall with two different beta-blockers but no improvement in score, body sway or aiming stability. The status rests on this one study because it is the design that tests the claim directly, randomised and placebo-controlled, and no study of archers in the bibliography points the other way; it is still a single study, though, with a single dose and a simulated indoor match at 18 metres.claim:beta-bloccanti-precisione:revision:2026-07-17:2Fri, 17 Jul 2026 08:00:00 GMT https://matteocampagna.com/en/registry/health/beta-blockers-accuracy#storiaA result on archers weakens the premise without testing the drug: with heart rate raised to around 166 to 168 beats by shuttle runs, the scores at 18 metres of thirteen international-level archers do not change compared with shooting at rest. If a much higher heart rate does not worsen the score, it is less obvious that lowering it would improve it; but a direct test with a beta-blocker is still missing.claim:beta-bloccanti-precisione:history_entry:2026-05-30:2019Sat, 30 May 2026 08:00:00 GMT https://matteocampagna.com/en/registry/health/beta-blockers-accuracy#storiaThe archer's heart rate and the moment the loose starts had been studied for some time, and that is where the idea of shooting better with a slower heart comes from. In the registry's bibliography, though, nobody had tried doing it with a drug: the claim was circulating with no direct test at all.claim:beta-bloccanti-precisione:history_entry:2026-05-30:1990Sat, 30 May 2026 08:00:00 GMT https://matteocampagna.com/en/registry/health/beta-blockers-accuracyclaim:beta-bloccanti-precisione:new_claim:2026-01-12:contraddettoMon, 12 Jan 2026 08:00:00 GMT