"Muscle Growth Possible for Slow-Twitchers Too"
Originally Published 2 years ago — by Outside
A new study in the Journal of Physiology found that muscle fiber type doesn't impact how much muscle size or strength increases from strength training. Both slow-twitch and fast-twitch muscle fibers saw similar gains in muscle size and strength after a ten-week strength training program. However, slow-twitchers needed to do more reps than fast-twitchers to get a comparable stimulus. Three workouts a week were better for muscle size than two, but training frequency didn't have a significant effect on strength.