Hypertrophy
Short definition
Hypertrophy — muscle mass gain via myofibril growth.
Full definition
Hypertrophy is the increase in muscle cross-section and mass, mainly via myofibril (MF) growth, stimulated by moderate intensity (60–80 % 1RM), 8–15 reps, accumulated fatigue and metabolic stress.
Examples
Hypertrophy block: 4×10 at 70 % 1RM, RPE 8.