Menno Henselmans
Higher volume may slightly increase muscle growth, but deloading shows no benefit at low volumes; individual responses vary widely.
Evidence is inconsistent, with some support for marginal gains from higher volume and no benefit from deloading at low volumes, but most findings lack strong confirmation.
We checked the science
our breakdown of the video
10 claims, each mapped to its moment in the video
Doing more sets at the gym than you're used to—like going from 18 to 33 sets a week per muscle group—doesn’t make your muscles grow significantly more, even though you might see a little more growth overall.
Good evidence supports this claim, with little to contradict it.
Doing more workout volume doesn’t necessarily make your muscles grow more—your body’s internal muscle-building signals stay about the same no matter how much you train.
Multiple causal studies (randomized trials and reviews) support this claim.
Doing more workout sets might help your muscles grow just a little bit more—even if the difference isn’t big enough to say for sure it’s not just random chance.
Multiple causal studies (randomized trials and reviews) support this claim.
If you lift weights, your muscles grow bigger — but only up to about 45 sets a week per muscle group; after that, you don’t get much extra growth no matter how much more you train.
Good evidence supports this claim, with little to contradict it.
Everyone’s body responds differently to workouts—what works wonders for one person might be too much or too little for another, because of differences in genes, energy use, and how fast they recover.
Multiple causal studies (randomized trials and reviews) support this claim.
Taking breaks from intense workouts every few weeks doesn’t reduce your overall training volume or stop you from building muscle in the long run.
Multiple causal studies (randomized trials and reviews) support this claim.
It doesn't matter how you spread out your workouts—what really matters is how much total stress your muscles have been under over weeks or months, just like how your total food intake over time decides if you gain or lose fat.
Not enough evidence yet — take this with caution.
Adding just one or two extra sets of exercise per week probably won’t make your muscles grow any more, because everyone’s body reacts differently and it’s hard to measure tiny changes accurately.
Evidence contradicts this claim.
If you push your muscles until they can't do another rep, you create more force per set—which can help if you're not doing many sets, but might hurt your progress if you're already doing a lot of work.
Evidence contradicts this claim.
Your muscles grow bigger not because of just one thing like lifting heavy weights or doing lots of reps, but because of how all the workout factors—like how hard you push, how often you train, and how well you recover—work together.
Shows a real connection between these things — genuine evidence, though it can't prove cause and effect, and stronger studies could still change it.
Key Takeaways
Summary
Based on the video transcript only.
- 1Problem: People wonder if doing more sets per week builds more muscle and if taking a rest week every few weeks helps recovery and gains.
- 2Core methods: Increasing weekly leg training volume from 18 to 33 sets using leg extensions and leg presses; performing a deload week (2 sets per muscle group) every four weeks versus continuous training at 7 sets per week.
- 3How methods work: Doing more sets means more total muscle stress over time, which signals growth; deloading reduces weekly stress temporarily, but if total weekly volume is low, the reduction doesn’t help recovery or growth.
- 4Expected outcomes: Higher volume (33 sets) led to slightly more muscle growth (10.3% vs. 7.6%) than moderate volume (18 sets); deloading every four weeks at low volume (7 sets) had no effect on muscle or strength gains.
- 5Implementation timeframe: Results were measured after eight weeks of consistent training; no immediate changes were seen before that.
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