Hypertrophy
Definition: The increase in muscle cell size as a response to resistance training. Typically achieved through training in the 6-12 rep range with moderate to heavy loads and adequate protein intake.
Why It Matters
Understanding hypertrophy is essential for making real progress in your fitness journey. Without this knowledge, you risk spinning your wheels — training hard but not seeing the results you deserve.
Callio automatically tracks and applies hypertrophy principles to your training program, so you don't need to be an exercise scientist to benefit from evidence-based programming.