Better cardio than running? 30 min round of shadowboxing

Nothing to see here… besides maybe the best alternative to running for fighters to build your aerobic cardio and muscular endurance in just 1 round… 30 minutes of non-stop #shadowboxing, curated with strategies and combos. Looking for access to the courses I mentioned? Use those secret codes here: https://watch.MAGNVS.io Looking for the $5 mini-courses? Click here: https://ift.tt/Fw9KkUO Looking for my instagram page? Here you go: https://ift.tt/dqCkeAp