Figure 4. Changes in body and muscle mass. Muscles from rats in the both control and training groups were isolated and weighted (mean ± SD, P < 0.01) (A). Maximal carrying load per training session over the course of 20 training sessions (8 weeks). Values are expressed as mean ± SD (B)

From

Progressive Resistance Training Modulates the Expression of ACTN2 and ACTN3 Genes and Proteins in the Skeletal Muscles

Neda khaledi, Rana Fayazmilani, Abbas Ali Gaeini, Arash Javeri

American Journal of Sports Science and Medicine. 2016, 4(2), 26-32 doi:10.12691/ajssm-4-2-1