https://matteocampagna.com/en/registry/physical-training/core-training-measured-strength-stability 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/physical-training/core-training-measured-strength-stabilityFour studies have trained archers' core muscles for six to eight weeks and measured what changes in the body, and they do not point the same way. In favour: in thirty Iranian amateur archers, six weeks of bodyweight exercises raise the strength of the shoulder's internal rotators by about 2.4 kg compared with the control group, from equal starting values, and in twelve young Malaysian archers eight weeks reduce body sway on the force plate. Against: in fifteen sedentary adults on their first traditional archery course, adding seven weeks of stabilisation work changes no measure compared with the course alone, neither the plank nor the trunk flexors and extensors nor balance, and within the trained group only the side bridge and the combined strength of transversus abdominis and multifidus improve. In between sits the tidiest randomised trial, thirty national-level Indian archers: the group combining Pilates and balance work pulls away from the control group on only one of four lumbopelvic stability tests, while on another it is the balance-only group that does so. All the studies are small, two appear in regional journals and three have figures that do not add up, from a missing unit of measurement to a fall in sway of almost 90 per cent in a month. Something in the body changes, but what changes depends on who is training and which test is chosen.claim:core-stability-stabilita-arciere:revision:2026-06-12:2Fri, 12 Jun 2026 08:00:00 GMT https://matteocampagna.com/en/registry/physical-training/core-training-measured-strength-stabilityclaim:core-stability-stabilita-arciere:new_claim:2026-04-24:contestatoFri, 24 Apr 2026 08:00:00 GMT