The article doesn't say what is the best burst duration. From paper: > Our findings show that the time-averaged oxygen uptake and metabolic cost are greater fo

The article doesn't say what is the best burst duration. From paper: > Our findings show that the time-averaged oxygen uptake and metabolic cost are greater for shorter than longer bouts: 30-s bouts consume 20–60% more oxygen than steady-state extrapolations. > After each bout, V̇O2 was measured during the recovery for 7 min while participants were sitting on the same chair So, each participant (there was 10 participants) done a trial of bouts, each bout randomly 10-240s plus 7min rest.