Warm Up
VO2 max takes a lot of effort to improve. You’ll want to push your body and heart very hard to improve it, getting to around 90 to 95% of your maximum heart rate. That means it’s vital to start with a good warm-up before any targeted activity. Take a good 10 to 15 minutes of jogging, doing burpees, some kind of lighter activity to get your muscles warmed up and your heart rate on the rise before working on your VO2 max. Otherwise, you could really hurt yourself, and that ruins the point.