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Originally Posted by zetsui  So I wanted to ask is it possible to buildg muscle while on polyphasic sleep? It seems being up for 22 hours in a day itself should burn calories and result in your body utilizing catabolism (breakdown of muscle instead of fat). |
I believe so. Although you would need a calorie surplus (for the best gains), which could be difficult being awake so long. The Harris-Benedict formula and the like would not be sufficient in calculating your daily needs. You wouldn’t necessarily be catabolic if you had the right amount of food.
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Originally Posted by zetsui That being said if I were to start a run-only workout on polyphasic wouldn't this result in my muscle being broken down as muscle building is not possible on the sleep schedule? The main problem with me was that when I did workout I just couldn't go to bed afterwards and ended up crashing during the nap afterwards? |
No, you wouldn’t be catabolic if you met your daily intake which would be much greater considering the added up time from the polyphasic and running. I think a run only program is a bad idea. You should consider morning cardio 3-4 times a week at your THR (target heart rate) and depending upon your current strength a calisthenics or weight training routine 3-4 times a week.
Couple of things to consider,
- Why are you polyphasic?
Although I personally like the pro’s of being polyphasic in reality I don’t see how anyone could accomplish 22 hours of anything in a day. I think if you prioritize and utilize your time well enough 16 hours a day up time is more than enough.
- Why are you running?
If you are running for fat loss, it’s not a good idea. I do 45 minutes cardio 6x’s a week at 70-75% maximum heart rate. Running will induce catabolism.