Muscle hypertrophy involves an increase in size of muscle through a growth in size of its cells. Two factors contribute to hypertrophy: sarcoplasmic hypertrophy, which focuses more on increased muscle glycogen storage; and myofibrillar hypertrophy, which focuses more on increased myofibril size.
I've watched videos of two big bodybuilders, Jay Cutler and Hunter Labrada. Both bodybuilders start with the premise of "your calves are being used all day long...". Jay Cutler finishes with You ...