Sarcoplasmic hypertrophy can be thought of as growth for maximal size or anaerobic fatigue resistance. The volume of fluid in the sarcoplasm increases instead of the myofibrils, adding primarily size and some strength to the muscle. This kind of muscle growth is achieved through metabolic adaptations—doing 8–12 reps to failure at a submaximal 60–80% of your one-repetition maximum,
