What do you think about Abe (2005) and their findings showing an average 0.55% CSA increase per day in quadricep with twice per day resistance training? Comparing that to twice per week resistance training to yield an average of 0.11% CSA per day increase.
Abe, T., Yasuda, T., Midorikawa, T., Sato, Y., Kearns, C.F., Inoue, K., Koizumi, K. and Ishii, N. (2005) Skeletal muscle size and circulating IGF-1 are increased after two weeks of twice daily “KAATSU” resistance training. International Journal of KAATSU Training Research 1, 6-12.