High Reps and Low Reps for Bigger Gains
Down and Up Mass is named after its wide swings in weights and rep counts: alternating weeks of heavy workouts (with rep ranges spanning from 3-5 to 9-11) and light workouts (from 12-15 up to 21-30 reps). Muscle grows effectively under both conditions, and hypertrophy is maximized with the constant stimulus changes aka, muscle confusion.
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