Yes, that's exactly the sort of thing I was wondering about.
In my running, I don't actually use a metronome, but basically the same thing, because I often listen to music where I know the exact BPM, and I tend to run in time to the beat. If it's a 180 bpm tune, I end up running faster than marathon pace without really thinking about it. So I have to concentrate to slow down and maintain that cadence. Now I'm thinking I should not try to maintain 180 if my BQ marathon pace would not benefit from it.