Old 02-24-19, 07:21 AM
  #20  
fstrnu
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Originally Posted by OBoile View Post
Your advice is bad and doesn't align with what Friel says.
Let's just go with what he says then. OP, read Fast After 50. That's the most important thing. Until then, here's another quote on progression:

As the EF for your interval sessions rises (meaning you get faster at the same effort), you will need to increase the duration of the individual intervals. As these longer interval workouts become more tolerable with a rising EF, begin to gradually increase the duration of the individual intervals.
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