PORTLAND, Ore. (KOIN) -- Some social media users likely have seen exercise videos featuring the 4-2-1 workout trend.

The viral exercise method has been making its rounds on social media, but does it actually work?

We brought in an expert from Life Time Beaverton, personal trainer Julian Rossetti on Move It Monday to help us break down how 4-2-1 works and if it's actually worth trying out for yourself.

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