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This 4-2-1 workout split is going viral on TikTok — here’s how it works
The 4-2-1 method breaks your week into four strength days, two cardio sessions, and one mobility day, to form a balanced ...
Does the 4-2-1 Method Actually Deliver? Here's How You Can Structure Your Workouts for Real Results.
Most TikTok fitness trends aren't worth your while. Let's break down what you need to know outside social media's echo ...