Why I don’t like “Knees out!” in the squat, Part 1
The ‘knees out’ cue can actually screw people up, depending on their joints. Hypermobile athletes will push their knees way outside their feet because they can, and that’s not an effective power-producing position. Getting your knees way outside the base of support increases shear stress on the knees and weakens the squat. Cues are context dependent.