If you can sprint 100% for longer than 1 minute than more power to you and go for 2 or 3 minutes. However, the benefits are happening when your heart is adjusting back to a lower intensity. So if I was you and I could sprint for 2-3 minutes at 100%, I would do 2-3 minutes at 100% then 1 minute at 70%-80% and alternate that sequence for 20 minutes.![]()



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