Hypertrophy and Strength Training Principles
Domain 2: Hypertrophy and Strength Training Principles
This domain tests the programming variables that drive strength and muscle growth: overload, specificity, volume, intensity, frequency, rest, tempo, range of motion, and exercise selection.
Core rules
- Progressive overload is the gradual increase of tension, volume, or quality over time. Track load, reps, sets, and RIR.
- Specificity: strength is best trained with heavy loads (roughly 1–6 reps, 85%+ 1RM) and long rest; hypertrophy is driven by hard sets across a wide load spectrum, roughly 30–85% 1RM taken near failure.
- Volume is the main hypertrophy lever; dose it per muscle per week and progress from a minimum effective volume toward a maximum recoverable volume.
- Intensity of effort matters: sets ending 0–3 reps from failure produce most of the stimulus; "junk volume" is far from failure and excessively fatiguing.
- Frequency: two sessions per muscle per week is a practical default; frequency is largely a way to distribute volume.
- Exercise order: prioritize the goal lift or weak muscle when fresh; compound movements before isolation when fatigue would compromise technique.
- Range of motion: full, controlled ROM with a loaded stretch often improves hypertrophy; partials can supplement but not replace full-ROM work.
Worked example
A lifter's squat has stalled at 100 kg for 5 reps. Instead of adding sets randomly, run a 3-week wave: week 1, 4×5 at 85 kg with 3 RIR; week 2, 4×4 at 92.5 kg with 2 RIR; week 3, 3×3 at 100 kg with 1–2 RIR, then deload. Reasoning: the plan applies overload through load and proximity to failure while managing fatigue; specificity to the squat is preserved, and technique is trained at heavier loads.
Traps
Ego lifting with shortened ROM; changing exercises every week; measuring progress only by soreness; adding volume without recovery; and using very light loads far from failure.