Originally Posted by
rm -rf
I've read that Zone 2 helps with fat burning efficiency. I notice that I'm not quite as hungry after a Zone 2 session.
You may burn more fat during a zone 2 session, but zone 2 won't efficiently train muscles to burn fat. To efficiently train for fat burning, you need more muscle mitochondria, and higher intensity builds mitochondria more quickly. Reportedly, zone 4 is twice as efficient than zone 2 at developing mitochondria.