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Walking is periodic too: dancers and gait researchers alike call its frequency cadence — steps per minute. A relaxed walk sits around 100-120 steps/min, roughly 1.7-2 Hz.
But cadence alone doesn't tell you how fast someone is actually travelling. A tall person and a short person can share the same cadence and still cover very different distances per step.
Which raises the question underneath this whole session: if frequency alone isn't speed, what else is needed?
