C
Cavy kidd
Guest
what exactly is the best rep range for building mass...Im naturally skinny but i have been training for a 1 year and have gained mass...I have heard under 5 for most muscles and i have also heard that 6 to 10 for mass. Which is better for my type of body shape...any thing i could do to improve..right now im doing under 5 reps for most muscles.(Chest,legs,shoulders,back)