Cerebral Palsy maybe/maybe not

But it is also a scalar , in that the size of the person (3 y/o to 19 y/o ?) matters as to whether the measurement is USEFUL relative to the task at hand... step over a 3” tall rock. Measure the vertical HA line in statures and utility or insufficiency screams at us. FUNCTION!

This is why we are not pretend scientists (wearing butcher's frocks) excited by statistical relevance devoid of functional utility. We are engineers. We want relevance. We want relevance in CONTEXT. We want contexts that assist function or thwart dysfunction.