Understanding Cardio Zones: Maximize Your Training Effectively. Posted inExercise Performance infographic Ultimate Guide to Cardio Zones Posted by Ricardo Londono October 6, 2024No Comments Ricardo Londono MD/PhD. I write about human health and productivity optimization. View All Posts Post navigation Previous Post Decision Fatigue Impacts Performance – How to Manage ItNext PostZone 2 Cardio: The Ultimate Secret to Endurance