Think of them as Very Short, Medium, and Long. These describe the three different energy pathways that your body uses to enable you to do things... Phosphagen, short, less than 10 seconds, 1 rep max, sprint... Glycolytic, medium, less than 120 seconds, 400m sprint, max burpees in 2 minutes... Oxidative, long, longer than 2 minutes, CrossFit "Girl" workout, 5-10k, marathon. If your training incorporates elements from all three pathways, we'd call it balanced. What's YOUR favorite / least favorite?


Alex dips his way through all three energy pathways on the white board behind him.

Today's Workout
Complete as many rounds as possible in 20 minutes of:
21 Kettlebell Swings
21 Sit Ups
42 Double Unders

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Phosphagen.

That is a great workout! I am new to this and I like it. I have not yet mastered the double unders (I substituted 84 regular jump ropes, is this sufficent?). I did 6 and 1/3 sets. I felt great!
Thank you.

That's awesome, Michael! If someone can't do double unders, we usually have them quadruple the number for single skips. Great job and welcome aboard!

Does Tabata count as Phosphagen or oxidative? Ah, what does it matter? All three have their great moments!

Double-Unders are the Bee's Knees!!!

dunno. but I heard mtanwyck LOVES sprints

Brutal...

I finished up 40 minutes ago and I am still sweating.. I may need to take a second shower.