Originally Posted by
chasm54
Really? Maybe my memory is failing, but I thought Carmichael's OU intervals were a minute at just above threshold followed by two minutes at around 92-95%, repeated a varying number of times to make a set.
Chas is right, but the times can vary - e.g., four minutes under/two minutes over. Also, there's no set proportion; in his book, one of the workouts is 3 sets x 12 minutes of 2U/2O.
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Regards,
Chuck
Demain, on roule!