https://matteocampagna.com/en/registry/mind/flotation-tank-forearm-tension 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/mind/flotation-tank-forearm-tensionThere is a single Swedish study, and its results point two ways. Twenty young archers aged 13 to 18 shot twelve arrows at 18 metres in two sessions six weeks apart, once after 45 minutes in a flotation tank and once after 45 minutes in an armchair, in an order assigned at random. With electromyography on the finger extensor of the drawing arm, after the tank mean tension falls in the least experienced archers, from 17.0 to 13.1 per cent of maximal contraction, and in the elite, from 15.5 to 13.7; in the intermediate group, however, it rises, from 15.5 to 17.5, across the three groups together the difference between the two conditions is not significant (p = 0.127), and in the half second before the release, the moment that matters most, tension does not change at all (p = 0.772). The score stays put, while perceived exertion falls from 11.9 to 10.8 on the Borg scale. With groups of six or seven teenagers and an effect that changes sign from one group to the next, the study points partly in favour and partly against; and a flotation tank, moreover, is not something an archer can use before a competition.claim:rilassamento-tensione-tiro:revision:2026-03-23:2Mon, 23 Mar 2026 08:00:00 GMT https://matteocampagna.com/en/registry/mind/flotation-tank-forearm-tensionclaim:rilassamento-tensione-tiro:new_claim:2026-02-12:contestatoThu, 12 Feb 2026 08:00:00 GMT