the.com/kickboard

A foam plank that lets you pretend your legs are the problem, not your technique.

means A buoyant foam board swimmers hold onto to stay afloat while using only their legs to kick, isolating leg technique from the rest of the stroke.

from A plain compound of 'kick' (Old English 'kician,' of uncertain deeper origin, meaning to strike with the foot) and 'board,' from Old English 'bord,' meaning a flat plank or slab. The device itself is a modern swim-training invention, and the name simply describes what it is: a board you kick behind while holding onto it.

origin
popularized in swim training mid-20th century
function
isolates legs by floating your upper body for you
irony
builds leg strength while doing none of the work
material
usually closed-cell foam, basically unsinkable
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