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REHIT Intermediate: 2×15-second sprints

Easier to do than REHIT Intense, but still estimated to deliver around 70% of the fitness benefits.
With 2×15-second max-intensity sprints, and low-intensity warm-up and cooldown, REHIT Intermediate works like this:
The duration of REHIT Intermediate is 4:50 – 8:30 minutes, depending on the length of your warm up and recovery.
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