TikTok is talking about influencer Lauren Giraldo's "12-3-30" treadmill workout, which involves wa… | Treadmill routine, Walking exercise, Incline treadmill workout
Horizon Fitness - You've likely heard of the 12-3-30 treadmill workout craze. What is it, exactly? 12% Incline 3.0 MPH Speed 30 Minutes It's easy enough to not be intimidating, but challenging
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I did a 12-3-30 workout daily for a week, here's what happened'
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