Reply To: Next Level
20 seconds rest is optimal for 50’s. I wouldn’t switch to a :50 interval until you’re getting 20+ @ :32 on :55.
I actually now use a watch with a programmable interval timer so that I can always set my rest interval at the optimal amount (15 sec for 25’s, 20 sec for 50’s and 75’s) without complicated pace-clock math, regardless of my target time.
