How much volume does a muscle need to grow? If you’re looking to build muscle, volume is the king. However, it’s not a case of ‘more is better’. As the figure below shows, hypertrophy (the technical name for muscle growth) is hypothesized to follow an inverted-U curve, whereby too much volume can be just as ineffective as too little.

Reference: Science and Development of Muscle Hypertrophy, Brad Schoenfeld.
The generally accepted way of calculating volume is: reps x sets x load. What’s the sweet spot for muscle gains?
Brad Schoenefeld, the professor of exercise science considered the world leading expert in this field, states broadly that:
“A volume of approximately 10-20 sets per muscle per week appears to be a good general recommendation for hypertrophy-related goals.”
QUALITY of each set plays a huge role here too.