To anyone trying this: make sure you warm up first and stretch afterwards. One minute of instant-on full-intensity exercise of any kind is just begging for an injury.
Especially if you're not eighteen any more like me.
The routine in the study included a 2 minute warm up and 3 minute cool down, with 2 minute rests between 20 second sprints. The reporting on this study is frustrating since they keep implying and/or stating that it's 1 minute of exercise. It's 1 minute of strenuous exercise.