Yo, I would like to know which produces the best results: 1. Doing Isos Daily (Whole body) vs Having a rest day between?
2. Since fast twitch muscle fibers can be active up until 15secs, will my abs also get the best results for Myofibrillar growth if I do Planks for 15s instead of 2-3 mins and up?
3. And, as I get stronger, My muscles will still experience Myofibrillar growth if I do say, 15s sets of 4 (1x4) and increase the sets, Right?
4. 1:2 vs 1:3 rest ratio?